Attachment 888887 Details for Bug 1090471 – SysRq

SysRq

vgreduce-removemissing-hangs.out (text/plain), 218.25 KB, created by Marian Csontos on 2014-04-23 12:33:13 UTC

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Creator: Marian Csontos

Created: 2014-04-23 12:33:13 UTC

Size: 218.25 KB

patch

obsolete

>- mirror_image_fault_policy = "allocate"
>- killed secondary leg while being replaced
>- killed secondary leg while being replaced
>
>    [ 7169.471215] scsi 2:0:0:2: Direct-Access     QEMU     QEMU HARDDISK    0.12 PQ: 0 ANSI: 5
>    [ 7169.475701] sd 2:0:0:2: [sdb] 16777216 512-byte logical blocks: (8.58 GB/8.00 GiB)
>    [ 7169.479001] sd 2:0:0:2: [sdb] Write Protect is off
>    [ 7169.481793] sd 2:0:0:2: [sdb] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
>    [ 7169.486450] sd 2:0:0:2: Attached scsi generic sg1 type 0
>    [ 7169.510953]  sdb: sdb1
>    [ 7169.514071] sd 2:0:0:2: [sdb] Attached SCSI disk
>    [ 7300.480931] bio: create slab <bio-2> at 2
>    [ 7324.949870] sd 2:0:0:2: [sdb] Synchronizing SCSI cache
>    [ 7325.007624] device-mapper: raid1: log postsuspend failed
>    [ 7384.646297] scsi 2:0:0:2: Direct-Access     QEMU     QEMU HARDDISK    0.12 PQ: 0 ANSI: 5
>    [ 7384.651783] sd 2:0:0:2: [sdb] 16777216 512-byte logical blocks: (8.58 GB/8.00 GiB)
>    [ 7384.656094] sd 2:0:0:2: [sdb] Write Protect is off
>    [ 7384.659777] sd 2:0:0:2: [sdb] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
>    [ 7384.665056] sd 2:0:0:2: Attached scsi generic sg1 type 0
>    [ 7384.702300]  sdb: sdb1
>    [ 7384.706603] sd 2:0:0:2: [sdb] Attached SCSI disk
>    [ 7438.142061] device-mapper: raid1: Write error during recovery (error = 0x1)
>    [ 7438.146803] end_request: I/O error, dev sda, sector 0
>    [ 7438.150714] sd 2:0:0:0: [sda] Synchronizing SCSI cache
>    [ 7438.155415] device-mapper: raid1: Write error during recovery (error = 0x1)
>    [ 7438.200191] device-mapper: raid1: Write error during recovery (error = 0x1)
>    [ 7438.207929] device-mapper: raid1: Write error during recovery (error = 0x1)
>    [ 7438.216574] device-mapper: raid1: Write error during recovery (error = 0x1)
>    [ 7438.222758] device-mapper: raid1: Write error during recovery (error = 0x1)
>    [ 7438.230165] device-mapper: raid1: Write error during recovery (error = 0x1)
>    [ 7438.236834] device-mapper: raid1: Write error during recovery (error = 0x1)
>    [ 7438.243078] device-mapper: raid1: Write error during recovery (error = 0x1)
>    [ 7438.250924] device-mapper: raid1: Write error during recovery (error = 0x1)
>    [ 7438.254891] device-mapper: raid1: log postsuspend failed
>    [ 7438.584289] bio: create slab <bio-2> at 2
>    [ 7470.600290] sd 2:0:0:2: [sdb] Synchronizing SCSI cache
>    [ 7470.603871] device-mapper: raid1: Write error during recovery (error = 0x1)
>    [ 7470.607387] end_request: I/O error, dev sdb, sector 0
>    [ 7470.613618] device-mapper: raid1: Write error during recovery (error = 0x1)
>    [ 7470.649587] device-mapper: raid1: Write error during recovery (error = 0x1)
>    [ 7470.660124] device-mapper: raid1: Write error during recovery (error = 0x1)
>    [ 7470.666211] device-mapper: raid1: Write error during recovery (error = 0x1)
>    [ 7470.674853] device-mapper: raid1: Write error during recovery (error = 0x1)
>    [ 7470.683913] device-mapper: raid1: Write error during recovery (error = 0x1)
>    [ 7470.689874] device-mapper: raid1: Write error during recovery (error = 0x1)
>    [ 7470.695604] device-mapper: raid1: Write error during recovery (error = 0x1)
>    [ 7470.701440] device-mapper: raid1: Write error during recovery (error = 0x1)
>    [ 7475.617090] recovery_complete: 884 callbacks suppressed
>    [ 7475.622192] device-mapper: raid1: Write error during recovery (error = 0x1)
>    [ 7475.632364] device-mapper: raid1: Write error during recovery (error = 0x1)
>    [ 7475.639671] device-mapper: raid1: Write error during recovery (error = 0x1)
>    [ 7475.647115] device-mapper: raid1: Write error during recovery (error = 0x1)
>    [ 7475.654855] device-mapper: raid1: Write error during recovery (error = 0x1)
>    [ 7475.663502] device-mapper: raid1: Write error during recovery (error = 0x1)
>    [ 7475.671458] device-mapper: raid1: Write error during recovery (error = 0x1)
>    [ 7475.679773] device-mapper: raid1: Write error during recovery (error = 0x1)
>    [ 7475.688797] device-mapper: raid1: Write error during recovery (error = 0x1)
>    [ 7475.696654] device-mapper: raid1: Write error during recovery (error = 0x1)
>
>- run `vgreduce --removemissing` while VG and LV were partial and there were no more free devices in the VG
>- hangs
>
>    [ 7655.668851] SysRq : HELP : loglevel(0-9) reboot(b) crash(c) terminate-all-tasks(e) memory-full-oom-kill(f) kill-all-tasks(i) thaw-filesystems(j) sak(k) show-backtrace-all-active-cpus(l) show-memory-usage(m) nice-all-RT-tasks(n) poweroff(o) show-registers(p) show-all-timers(q) unraw(r) sync(s) show-task-states(t) unmount(u) force-fb(V) show-blocked-tasks(w) dump-ftrace-buffer(z) 
>    [ 7657.702618] SysRq : Show backtrace of all active CPUs
>    [ 7657.703400] sending NMI to all CPUs:
>    [ 7657.703400] NMI backtrace for cpu 0
>    [ 7657.703400] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 3.10.0-116.el7.x86_64 #1
>    [ 7657.703400] Hardware name: Red Hat KVM, BIOS 0.5.1 01/01/2007
>    [ 7657.703400] task: ffffffff818e5440 ti: ffffffff818d2000 task.ti: ffffffff818d2000
>    [ 7657.703400] RIP: 0010:[<ffffffff8103fd6f>]  [<ffffffff8103fd6f>] flat_send_IPI_all+0x8f/0xa0
>    [ 7657.703400] RSP: 0018:ffff88003fc03a88  EFLAGS: 00010006
>    [ 7657.703400] RAX: 0000000000000000 RBX: 0000000000000046 RCX: 0000000001000000
>    [ 7657.703400] RDX: 0000000000000c00 RSI: ffffffff818f4fa0 RDI: 0000000000000300
>    [ 7657.703400] RBP: ffff88003fc03aa0 R08: 0000000000000096 R09: 0000000000000266
>    [ 7657.703400] R10: 0000000000000007 R11: 0000000000aaaaaa R12: 0000000000000800
>    [ 7657.703400] R13: 0000000000000001 R14: 0000000000000007 R15: 0000000000000001
>    [ 7657.703400] FS:  0000000000000000(0000) GS:ffff88003fc00000(0000) knlGS:0000000000000000
>    [ 7657.703400] CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
>    [ 7657.703400] CR2: 00007f53dc6cb000 CR3: 000000003d35f000 CR4: 00000000000006f0
>    [ 7657.703400] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
>    [ 7657.703400] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
>    [ 7657.703400] Stack:
>    [ 7657.703400]  0000000000002710 000000000000006c 0000000000000002 ffff88003fc03ab8
>    [ 7657.703400]  ffffffff8103adb5 ffffffff819924e0 ffff88003fc03ac8 ffffffff8137b8ee
>    [ 7657.703400]  ffff88003fc03b00 ffffffff8137be82 ffff880037045400 0000000000000000
>    [ 7657.703400] Call Trace:
>    [ 7657.703400]  <IRQ> 
>    [ 7657.703400]  [<ffffffff8103adb5>] arch_trigger_all_cpu_backtrace+0x65/0xa0
>    [ 7657.703400]  [<ffffffff8137b8ee>] sysrq_handle_showallcpus+0xe/0x10
>    [ 7657.703400]  [<ffffffff8137be82>] __handle_sysrq+0xa2/0x170
>    [ 7657.703400]  [<ffffffff8137c303>] sysrq_filter+0x363/0x390
>    [ 7657.703400]  [<ffffffff8144e2f9>] input_to_handler+0x59/0xf0
>    [ 7657.703400]  [<ffffffff8144f649>] input_pass_values.part.4+0x179/0x190
>    [ 7657.703400]  [<ffffffff81451791>] input_handle_event+0x121/0x520
>    [ 7657.703400]  [<ffffffff81451be6>] input_event+0x56/0x70
>    [ 7657.703400]  [<ffffffff814578f1>] atkbd_interrupt+0x621/0x720
>    [ 7657.703400]  [<ffffffff8144ad93>] serio_interrupt+0x43/0x90
>    [ 7657.703400]  [<ffffffff8144c3aa>] i8042_interrupt+0x18a/0x370
>    [ 7657.703400]  [<ffffffff81066ff3>] ? __do_softirq+0xa3/0x290
>    [ 7657.703400]  [<ffffffff810f70be>] handle_irq_event_percpu+0x3e/0x1e0
>    [ 7657.703400]  [<ffffffff810f729d>] handle_irq_event+0x3d/0x60
>    [ 7657.703400]  [<ffffffff810f9f27>] handle_edge_irq+0x77/0x130
>    [ 7657.703400]  [<ffffffff81014c3f>] handle_irq+0xbf/0x150
>    [ 7657.703400]  [<ffffffff81067247>] ? irq_enter+0x17/0xa0
>    [ 7657.703400]  [<ffffffff815fea4f>] do_IRQ+0x4f/0xf0
>    [ 7657.703400]  [<ffffffff815f3bad>] common_interrupt+0x6d/0x6d
>    [ 7657.703400]  [<ffffffff81066ff3>] ? __do_softirq+0xa3/0x290
>    [ 7657.703400]  [<ffffffff81066f70>] ? __do_softirq+0x20/0x290
>    [ 7657.703400]  [<ffffffff815fe15c>] call_softirq+0x1c/0x30
>    [ 7657.703400]  [<ffffffff81014d25>] do_softirq+0x55/0x90
>    [ 7657.703400]  [<ffffffff810673e5>] irq_exit+0x115/0x120
>    [ 7657.703400]  [<ffffffff815fea58>] do_IRQ+0x58/0xf0
>    [ 7657.703400]  [<ffffffff815f3bad>] common_interrupt+0x6d/0x6d
>    [ 7657.703400]  <EOI> 
>    [ 7657.703400]  [<ffffffff81046346>] ? native_safe_halt+0x6/0x10
>    [ 7657.703400]  [<ffffffff8101b39f>] default_idle+0x1f/0xc0
>    [ 7657.703400]  [<ffffffff8101bc96>] arch_cpu_idle+0x26/0x30
>    [ 7657.703400]  [<ffffffff810b4725>] cpu_startup_entry+0xf5/0x290
>    [ 7657.703400]  [<ffffffff815ce037>] rest_init+0x77/0x80
>    [ 7657.703400]  [<ffffffff81a18fa7>] start_kernel+0x429/0x44a
>    [ 7657.703400]  [<ffffffff81a18987>] ? repair_env_string+0x5c/0x5c
>    [ 7657.703400]  [<ffffffff81a18120>] ? early_idt_handlers+0x120/0x120
>    [ 7657.703400]  [<ffffffff81a185ee>] x86_64_start_reservations+0x2a/0x2c
>    [ 7657.703400]  [<ffffffff81a18742>] x86_64_start_kernel+0x152/0x175
>    [ 7657.703400] Code: 48 8b 35 ed 1c 9b 00 44 8b 66 3c ff 96 50 01 00 00 44 89 e9 c1 e1 18 89 0c 25 10 a3 5a ff 44 89 e2 80 ce 04 89 14 25 00 a3 5a ff <48> 89 df 57 9d 0f 1f 44 00 00 5b 41 5c 41 5d 5d c3 0f 1f 44 00 
>    [ 7659.738356] SysRq : Show Blocked State
>    [ 7659.739044]   task                        PC stack   pid father
>    [ 7659.739044] jbd2/dm-3-8     D ffff88003fc14540     0   396      2 0x00000000
>    [ 7659.739044]  ffff880036815ba8 0000000000000046 ffff880036815fd8 0000000000014540
>    [ 7659.739044]  ffff880036815fd8 0000000000014540 ffff88003702b8e0 ffff88003fc14e08
>    [ 7659.739044]  ffff88003ff5aa18 0000000000000002 ffffffff811e1190 ffff880036815c20
>    [ 7659.739044] Call Trace:
>    [ 7659.739044]  [<ffffffff811e1190>] ? generic_block_bmap+0x70/0x70
>    [ 7659.739044]  [<ffffffff815f1bed>] io_schedule+0x9d/0x140
>    [ 7659.739044]  [<ffffffff811e119e>] sleep_on_buffer+0xe/0x20
>    [ 7659.739044]  [<ffffffff815ef950>] __wait_on_bit+0x60/0x90
>    [ 7659.739044]  [<ffffffff811e1190>] ? generic_block_bmap+0x70/0x70
>    [ 7659.739044]  [<ffffffff815efa07>] out_of_line_wait_on_bit+0x87/0xb0
>    [ 7659.739044]  [<ffffffff81086af0>] ? autoremove_wake_function+0x40/0x40
>    [ 7659.739044]  [<ffffffff811e257a>] __wait_on_buffer+0x2a/0x30
>    [ 7659.739044]  [<ffffffffa0199901>] jbd2_journal_commit_transaction+0xe01/0x1950 [jbd2]
>    [ 7659.739044]  [<ffffffffa019e799>] kjournald2+0xc9/0x270 [jbd2]
>    [ 7659.739044]  [<ffffffff81086ab0>] ? wake_up_bit+0x30/0x30
>    [ 7659.739044]  [<ffffffffa019e6d0>] ? commit_timeout+0x10/0x10 [jbd2]
>    [ 7659.739044]  [<ffffffff81085aef>] kthread+0xcf/0xe0
>    [ 7659.739044]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7659.739044]  [<ffffffff815fc76c>] ret_from_fork+0x7c/0xb0
>    [ 7659.739044]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7659.739044] rs:main Q:Reg   D ffff88003fc14540     0   631      1 0x00000080
>    [ 7659.739044]  ffff88003c025a28 0000000000000082 ffff88003c025fd8 0000000000014540
>    [ 7659.739044]  ffff88003c025fd8 0000000000014540 ffff88003bc4cfa0 ffff8800334da000
>    [ 7659.739044]  0000000000000000 ffff8800393cae38 ffff88003ff55750 ffff88003c025a90
>    [ 7659.739044] Call Trace:
>    [ 7659.739044]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7659.739044]  [<ffffffffa01977a5>] do_get_write_access+0x315/0x560 [jbd2]
>    [ 7659.739044]  [<ffffffff8106e247>] ? internal_add_timer+0x17/0x40
>    [ 7659.739044]  [<ffffffff81086af0>] ? autoremove_wake_function+0x40/0x40
>    [ 7659.739044]  [<ffffffffa0197a17>] jbd2_journal_get_write_access+0x27/0x40 [jbd2]
>    [ 7659.739044]  [<ffffffffa01e5c6b>] __ext4_journal_get_write_access+0x3b/0x80 [ext4]
>    [ 7659.739044]  [<ffffffffa01bb180>] ext4_reserve_inode_write+0x70/0xa0 [ext4]
>    [ 7659.739044]  [<ffffffffa01be71d>] ? ext4_dirty_inode+0x3d/0x60 [ext4]
>    [ 7659.739044]  [<ffffffffa01bb203>] ext4_mark_inode_dirty+0x53/0x210 [ext4]
>    [ 7659.739044]  [<ffffffffa01be71d>] ext4_dirty_inode+0x3d/0x60 [ext4]
>    [ 7659.739044]  [<ffffffff811db4ba>] __mark_inode_dirty+0xca/0x290
>    [ 7659.739044]  [<ffffffff811ca681>] update_time+0x81/0xd0
>    [ 7659.739044]  [<ffffffff811ca8d0>] file_update_time+0xa0/0xf0
>    [ 7659.739044]  [<ffffffff81143688>] __generic_file_aio_write+0x198/0x3e0
>    [ 7659.739044]  [<ffffffff8114392d>] generic_file_aio_write+0x5d/0xc0
>    [ 7659.739044]  [<ffffffffa01b3189>] ext4_file_write+0xa9/0x450 [ext4]
>    [ 7659.739044]  [<ffffffff811bb572>] ? final_putname+0x22/0x50
>    [ 7659.739044]  [<ffffffff811bb779>] ? putname+0x29/0x40
>    [ 7659.739044]  [<ffffffff810bfc08>] ? get_futex_key+0x1c8/0x2a0
>    [ 7659.739044]  [<ffffffff811af20d>] do_sync_write+0x8d/0xd0
>    [ 7659.739044]  [<ffffffff811af9ad>] vfs_write+0xbd/0x1e0
>    [ 7659.739044]  [<ffffffff811b03f8>] SyS_write+0x58/0xb0
>    [ 7659.739044]  [<ffffffff815fc819>] system_call_fastpath+0x16/0x1b
>    [ 7659.739044] kworker/u2:1    D ffff88003fc14540     0  2651      2 0x00000080
>    [ 7659.739044] Workqueue: writeback bdi_writeback_workfn (flush-253:3)
>    [ 7659.739044]  ffff88003c31d608 0000000000000046 ffff88003c31dfd8 0000000000014540
>    [ 7659.739044]  ffff88003c31dfd8 0000000000014540 ffff880037276660 ffff88003fc14e08
>    [ 7659.739044]  ffff88003c31d690 0000000000000002 ffffffff811e1190 ffff88003c31d680
>    [ 7659.739044] Call Trace:
>    [ 7659.739044]  [<ffffffff811e1190>] ? generic_block_bmap+0x70/0x70
>    [ 7659.739044]  [<ffffffff815f1bed>] io_schedule+0x9d/0x140
>    [ 7659.739044]  [<ffffffff811e119e>] sleep_on_buffer+0xe/0x20
>    [ 7659.739044]  [<ffffffff815efa8b>] __wait_on_bit_lock+0x5b/0xc0
>    [ 7659.739044]  [<ffffffff811e1190>] ? generic_block_bmap+0x70/0x70
>    [ 7659.739044]  [<ffffffff815efb77>] out_of_line_wait_on_bit_lock+0x87/0xb0
>    [ 7659.739044]  [<ffffffff81086af0>] ? autoremove_wake_function+0x40/0x40
>    [ 7659.739044]  [<ffffffff811e25b2>] __lock_buffer+0x32/0x40
>    [ 7659.739044]  [<ffffffffa019796a>] do_get_write_access+0x4da/0x560 [jbd2]
>    [ 7659.739044]  [<ffffffff811e2a3d>] ? __getblk+0x2d/0x2e0
>    [ 7659.739044]  [<ffffffff81194cb5>] ? kmem_cache_alloc+0x35/0x1d0
>    [ 7659.739044]  [<ffffffffa01a1651>] ? jbd2_journal_add_journal_head+0x61/0x200 [jbd2]
>    [ 7659.739044]  [<ffffffffa0197a17>] jbd2_journal_get_write_access+0x27/0x40 [jbd2]
>    [ 7659.739044]  [<ffffffffa01e5c6b>] __ext4_journal_get_write_access+0x3b/0x80 [ext4]
>    [ 7659.739044]  [<ffffffffa01ec848>] ext4_mb_mark_diskspace_used+0xf8/0x4f0 [ext4]
>    [ 7659.739044]  [<ffffffffa01edfbd>] ext4_mb_new_blocks+0x2ad/0x580 [ext4]
>    [ 7659.739044]  [<ffffffffa01e4365>] ext4_ext_map_blocks+0x695/0xfa0 [ext4]
>    [ 7659.739044]  [<ffffffffa01b8a35>] ext4_map_blocks+0x2b5/0x4d0 [ext4]
>    [ 7659.739044]  [<ffffffffa01bb52e>] mpage_da_map_and_submit+0x16e/0x450 [ext4]
>    [ 7659.739044]  [<ffffffffa01bc04e>] ? ext4_da_writepages+0x2de/0x610 [ext4]
>    [ 7659.739044]  [<ffffffffa01bc09d>] ext4_da_writepages+0x32d/0x610 [ext4]
>    [ 7659.739044]  [<ffffffff8114da2e>] do_writepages+0x1e/0x40
>    [ 7659.739044]  [<ffffffff811d8cb0>] __writeback_single_inode+0x40/0x220
>    [ 7659.739044]  [<ffffffff811d973e>] writeback_sb_inodes+0x25e/0x420
>    [ 7659.739044]  [<ffffffff811d999f>] __writeback_inodes_wb+0x9f/0xd0
>    [ 7659.739044]  [<ffffffff811da1f3>] wb_writeback+0x243/0x2c0
>    [ 7659.739044]  [<ffffffff811dbabc>] bdi_writeback_workfn+0x2ec/0x460
>    [ 7659.739044]  [<ffffffff8107e02b>] process_one_work+0x17b/0x460
>    [ 7659.739044]  [<ffffffff8107edfb>] worker_thread+0x11b/0x400
>    [ 7659.739044]  [<ffffffff8107ece0>] ? rescuer_thread+0x400/0x400
>    [ 7659.739044]  [<ffffffff81085aef>] kthread+0xcf/0xe0
>    [ 7659.739044]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7659.739044]  [<ffffffff815fc76c>] ret_from_fork+0x7c/0xb0
>    [ 7659.739044]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7659.739044] vgreduce        D ffff88003fc14540     0  3078   1872 0x00000080
>    [ 7659.739044]  ffff880036f4b978 0000000000000082 ffff880036f4bfd8 0000000000014540
>    [ 7659.739044]  ffff880036f4bfd8 0000000000014540 ffff88003bbb4440 ffff88003fc14e08
>    [ 7659.739044]  ffff880036f4ba00 0000000000000002 ffffffff811e1190 ffff880036f4b9f0
>    [ 7659.739044] Call Trace:
>    [ 7659.739044]  [<ffffffff811e1190>] ? generic_block_bmap+0x70/0x70
>    [ 7659.739044]  [<ffffffff815f1bed>] io_schedule+0x9d/0x140
>    [ 7659.739044]  [<ffffffff811e119e>] sleep_on_buffer+0xe/0x20
>    [ 7659.739044]  [<ffffffff815efa8b>] __wait_on_bit_lock+0x5b/0xc0
>    [ 7659.739044]  [<ffffffff811e1190>] ? generic_block_bmap+0x70/0x70
>    [ 7659.739044]  [<ffffffff815efb77>] out_of_line_wait_on_bit_lock+0x87/0xb0
>    [ 7659.739044]  [<ffffffff81086af0>] ? autoremove_wake_function+0x40/0x40
>    [ 7659.739044]  [<ffffffff811e25b2>] __lock_buffer+0x32/0x40
>    [ 7659.739044]  [<ffffffffa019796a>] do_get_write_access+0x4da/0x560 [jbd2]
>    [ 7659.739044]  [<ffffffffa01961cc>] ? start_this_handle+0x1cc/0x4d0 [jbd2]
>    [ 7659.739044]  [<ffffffffa01972e2>] ? __jbd2_journal_file_buffer+0xa2/0x250 [jbd2]
>    [ 7659.739044]  [<ffffffff81194e3a>] ? kmem_cache_alloc+0x1ba/0x1d0
>    [ 7659.739044]  [<ffffffffa0197a17>] jbd2_journal_get_write_access+0x27/0x40 [jbd2]
>    [ 7659.739044]  [<ffffffffa01e5c6b>] __ext4_journal_get_write_access+0x3b/0x80 [ext4]
>    [ 7659.739044]  [<ffffffffa01b4f8c>] __ext4_new_inode+0x69c/0x1370 [ext4]
>    [ 7659.739044]  [<ffffffffa01c4908>] ext4_create+0xd8/0x190 [ext4]
>    [ 7659.739044]  [<ffffffff811bee7d>] vfs_create+0xcd/0x130
>    [ 7659.739044]  [<ffffffff811bfa94>] do_last+0xbb4/0x1220
>    [ 7659.739044]  [<ffffffff811685c9>] ? __do_fault+0x419/0x520
>    [ 7659.739044]  [<ffffffff811c01c2>] path_openat+0xc2/0x4c0
>    [ 7659.739044]  [<ffffffff811c0ddb>] do_filp_open+0x4b/0xb0
>    [ 7659.739044]  [<ffffffff811cd5d7>] ? __alloc_fd+0xa7/0x130
>    [ 7659.739044]  [<ffffffff811aec83>] do_sys_open+0xf3/0x1f0
>    [ 7659.739044]  [<ffffffff811aed9e>] SyS_open+0x1e/0x20
>    [ 7659.739044]  [<ffffffff815fc819>] system_call_fastpath+0x16/0x1b
>    [ 7659.739044] Sched Debug Version: v0.11, 3.10.0-116.el7.x86_64 #1
>    [ 7659.739044] ktime                                   : 7660078.552056
>    [ 7659.739044] sched_clk                               : 509833878.714365
>    [ 7659.739044] cpu_clk                                 : 7659739.044175
>    [ 7659.739044] jiffies                                 : 4302327034
>    [ 7659.739044] sched_clock_stable                      : 0
>    [ 7659.739044] 
>    [ 7659.739044] sysctl_sched
>    [ 7659.739044]   .sysctl_sched_latency                    : 6.000000
>    [ 7659.739044]   .sysctl_sched_min_granularity            : 10.000000
>    [ 7659.739044]   .sysctl_sched_wakeup_granularity         : 15.000000
>    [ 7659.739044]   .sysctl_sched_child_runs_first           : 0
>    [ 7659.739044]   .sysctl_sched_features                   : 77435
>    [ 7659.739044]   .sysctl_sched_tunable_scaling            : 1 (logaritmic)
>    [ 7659.739044] 
>    [ 7659.739044] cpu#0, 1999.999 MHz
>    [ 7659.739044]   .nr_running                    : 1
>    [ 7659.739044]   .load                          : 1024
>    [ 7659.739044]   .nr_switches                   : 514696
>    [ 7659.739044]   .nr_load_updates               : 169725
>    [ 7659.739044]   .nr_uninterruptible            : 4
>    [ 7659.739044]   .next_balance                  : 4302.327407
>    [ 7659.739044]   .curr->pid                     : 0
>    [ 7659.739044]   .clock                         : 7659738.267162
>    [ 7659.739044]   .cpu_load[0]                   : 0
>    [ 7659.739044]   .cpu_load[1]                   : 1
>    [ 7659.739044]   .cpu_load[2]                   : 58
>    [ 7659.739044]   .cpu_load[3]                   : 181
>    [ 7659.739044]   .cpu_load[4]                   : 204
>    [ 7659.739044] 
>    [ 7659.739044] cfs_rq[0]:/
>    [ 7659.739044]   .exec_clock                    : 0.000000
>    [ 7659.739044]   .MIN_vruntime                  : 50200.373648
>    [ 7659.739044]   .min_vruntime                  : 50201.673371
>    [ 7659.739044]   .max_vruntime                  : 50200.373648
>    [ 7659.739044]   .spread                        : 0.000000
>    [ 7659.739044]   .spread0                       : 0.000000
>    [ 7659.739044]   .nr_spread_over                : 0
>    [ 7659.739044]   .nr_running                    : 1
>    [ 7659.739044]   .load                          : 1024
>    [ 7659.739044]   .runnable_load_avg             : 1
>    [ 7659.739044]   .blocked_load_avg              : 0
>    [ 7659.739044]   .tg_load_avg                   : 1
>    [ 7659.739044]   .tg_load_contrib               : 1
>    [ 7659.739044]   .tg_runnable_contrib           : 1
>    [ 7659.739044]   .tg->runnable_avg              : 1
>    [ 7659.739044]   .avg->runnable_avg_sum         : 49
>    [ 7659.739044]   .avg->runnable_avg_period      : 47447
>    [ 7659.739044] 
>    [ 7659.739044] rt_rq[0]:/
>    [ 7659.739044]   .rt_nr_running                 : 0
>    [ 7659.739044]   .rt_throttled                  : 0
>    [ 7659.739044]   .rt_time                       : 0.000000
>    [ 7659.739044]   .rt_runtime                    : 950.000000
>    [ 7659.739044] 
>    [ 7659.739044] runnable tasks:
>    [ 7659.739044]             task   PID         tree-key  switches  prio     exec-runtime         sum-exec        sum-sleep
>    [ 7659.739044] ----------------------------------------------------------------------------------------------------------
>    [ 7659.739044]          systemd     1     49218.114463      3585   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]         kthreadd     2     49163.562413       218   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]      ksoftirqd/0     3     50198.602769      3675   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]     kworker/0:0H     5      2004.715076         6   100               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]      migration/0     7         0.000000       137     0               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]           rcu_bh     8        24.983512         2   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]          rcuob/0     9        26.984310         2   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]        rcu_sched    10     50180.012309     16980   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]          rcuos/0    11     50180.025175     10523   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]       watchdog/0    12        -3.000000      1917     0               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]          khelper    13        36.166141         2   100               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]        kdevtmpfs    14     49173.560743       248   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]            netns    15        41.541168         2   100               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]        writeback    16     34494.798058         4   100               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]      kintegrityd    17        51.645240         2   100               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]           bioset    18        53.646247         2   100               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]          kblockd    19        55.648293         2   100               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]            khubd    20       972.657711        42   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]               md    21       137.044352         2   100               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]          kswapd0    24       455.089525         3   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]             ksmd    25       356.176564         2   125               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]       khugepaged    26     50187.117876       772   139               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]    fsnotify_mark    27     49173.549557       110   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]           crypto    28       364.564863         2   100               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]         kthrotld    37       384.207671         2   100               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]     kmpath_rdacd    39       442.702448         2   100               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]        kpsmoused    40       484.068874         2   100               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]          deferwq    59     37062.796600         6   100               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]          kauditd    88     49203.723406       529   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]          ata_sff   211       917.189461         2   100               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]        scsi_eh_0   212       964.965686         4   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]       scsi_tmf_0   213       919.163810         2   100               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]        scsi_eh_1   215       964.237086         4   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]       scsi_tmf_1   216       920.675330         2   100               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]        scsi_eh_2   218       920.750181         2   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]         ttm_swap   220       921.426671         2   100               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]       scsi_tmf_2   222       921.516192         2   100               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]         kdmflush   364      1162.621704         2   100               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]      jbd2/dm-3-8   396     49923.832579       624   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]  ext4-dio-unwrit   397      1238.081369         2   100               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]             bash   463      1700.427847        63   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]  systemd-journal   465     50202.878096       980   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]          lvmetad   474     50098.793753       114   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]          lvmetad  2197     16198.508009        27   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]          lvmetad  2429     22185.239790        28   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]          lvmetad  2657     34654.179574        27   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]          lvmetad  2847     39930.629615        33   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]          lvmetad  2974     50083.090181        45   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]          lvmetad  3079     50114.103033         5   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]    systemd-udevd   493     49529.351604      1391   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]         dmeventd   508     50198.674251      7930   102               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]         dmeventd  2943     50114.102348      2384   102               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]         dmeventd  3056     47095.111903         1   102               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]         vballoon   522      1761.338369         2   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]         kdmflush   542      1774.205833         2   100               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]           bioset   543      1774.323811         2   100               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]      jbd2/vda1-8   559      1791.489799         2   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]  ext4-dio-unwrit   560      1793.492011         2   100               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]           auditd   563     50179.390015       592   116               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]           auditd   575     49203.724941       532   116               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]            tuned   596     37700.886774       487   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]            gmain   810      2621.566909         2   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]            tuned   811      2623.206246        14   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]            tuned   812     50199.005627      7724   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]            tuned   813     49194.171981       263   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]     avahi-daemon   597     35346.410183       424   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]   NetworkManager   599     50142.595884      1585   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]   NetworkManager   633      1958.632177         1   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]            gdbus   636     17820.888104       256   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]            gmain   675      2537.992290         2   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]         rsyslogd   601      1951.340103        29   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]     in:imjournal   630     50200.089007      2024   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]    rs:main Q:Reg   631     49718.597398      1995   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]      dbus-daemon   604     50142.697392      1623   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]   systemd-logind   605     49203.767666       755   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]            crond   606     50160.466274       143   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]     avahi-daemon   608      1935.227549         4   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]          iprinit   623     49173.978757       375   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]        iprupdate   626     49173.979711       373   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]          polkitd   638     35195.878493       460   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]            gdbus   642     35196.178553       397   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]     JS GC Helper   644      1982.770974         2   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]  JS Sour~ Thread   645      1992.494284         5   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]  runaway-killer-   649      3034.005093         7   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]            gmain   650      1998.490524         1   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]          iprdump   646     49173.981321       353   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]     kworker/0:1H   652     48349.158306       254   100               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]         dhclient   806     35194.563252        60   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]             sshd   858     16917.433258       139   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]        rhsmcertd   861     10108.716581         6   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]           agetty   873      9620.489549         5   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]            login   874     10411.054804        23   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]           master  1472     50180.163875       310   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]             qmgr  1483     50116.566717        45   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]             bash  1872     50091.540594      1917   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]           sysfsd  2185     16037.638830         2   100               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]      kworker/0:1  2502     43592.753872      1231   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]     kworker/u2:1  2651     49979.663787       123   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]           pickup  2708     50180.089213        28   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]     kworker/u2:0  2745     49173.558521        16   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]      kworker/0:2  2758     50200.373648     59332   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]      kworker/0:3  2860     49535.075188       794   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]         kdmflush  3033     46983.300106         2   100               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]           bioset  3035     46993.303221         2   100               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]         kdmflush  3037     47003.303564         2   100               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]           bioset  3039     47013.305411         2   100               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]         kdmflush  3042     47023.306157         2   100               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]           bioset  3044     47033.308259         2   100               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]           bioset  3046     47043.308150         2   100               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]           bioset  3048     47053.308493         2   100               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]         kmirrord  3050     47063.309200         2   100               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]           kcopyd  3052     47073.309564         2   100               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]           bioset  3053     47083.311818         2   100               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]           bioset  3054     47093.311896         2   100               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]     kworker/u2:2  3066     49176.551834         2   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044]         vgreduce  3078     50122.142926         8   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7659.739044] 
>    [ 7661.775425] SysRq : Show Memory
>    [ 7661.776333] Mem-Info:
>    [ 7661.776333] Node 0 DMA per-cpu:
>    [ 7661.776333] CPU    0: hi:    0, btch:   1 usd:   0
>    [ 7661.776333] Node 0 DMA32 per-cpu:
>    [ 7661.776333] CPU    0: hi:  186, btch:  31 usd:  43
>    [ 7661.776333] active_anon:12078 inactive_anon:1623 isolated_anon:0
>    [ 7661.776333]  active_file:6535 inactive_file:13946 isolated_file:0
>    [ 7661.776333]  unevictable:4615 dirty:3 writeback:3 unstable:0
>    [ 7661.776333]  free:204843 slab_reclaimable:3389 slab_unreclaimable:2318
>    [ 7661.776333]  mapped:6256 shmem:1669 pagetables:880 bounce:0
>    [ 7661.776333]  free_cma:0
>    [ 7661.776333] Node 0 DMA free:13140kB min:708kB low:884kB high:1060kB active_anon:828kB inactive_anon:4kB active_file:304kB inactive_file:908kB unevictable:56kB isolated(anon):0kB isolated(file):0kB present:15968kB managed:15884kB mlocked:56kB dirty:0kB writeback:0kB mapped:228kB shmem:4kB slab_reclaimable:320kB slab_unreclaimable:96kB kernel_stack:8kB pagetables:100kB unstable:0kB bounce:0kB free_cma:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no
>    [ 7661.776333] lowmem_reserve[]: 0 966 966 966
>    [ 7661.776333] Node 0 DMA32 free:806232kB min:44344kB low:55428kB high:66516kB active_anon:47484kB inactive_anon:6488kB active_file:25836kB inactive_file:54876kB unevictable:18404kB isolated(anon):0kB isolated(file):0kB present:1032180kB managed:989728kB mlocked:18404kB dirty:12kB writeback:12kB mapped:24796kB shmem:6672kB slab_reclaimable:13236kB slab_unreclaimable:9176kB kernel_stack:920kB pagetables:3420kB unstable:0kB bounce:0kB free_cma:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no
>    [ 7661.776333] lowmem_reserve[]: 0 0 0 0
>    [ 7661.776333] Node 0 DMA: 5*4kB (UM) 4*8kB (M) 2*16kB (UM) 2*32kB (UM) 3*64kB (UE) 2*128kB (EM) 1*256kB (M) 2*512kB (EM) 3*1024kB (UEM) 2*2048kB (ER) 1*4096kB (M) = 13140kB
>    [ 7661.776333] Node 0 DMA32: 172*4kB (U) 63*8kB (UE) 53*16kB (UEM) 33*32kB (UEM) 35*64kB (UEM) 17*128kB (UEM) 14*256kB (UEM) 15*512kB (UEM) 7*1024kB (UM) 5*2048kB (UE) 188*4096kB (MR) = 806232kB
>    [ 7661.776333] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
>    [ 7661.776333] 23324 total pagecache pages
>    [ 7661.776333] 0 pages in swap cache
>    [ 7661.776333] Swap cache stats: add 0, delete 0, find 0/0
>    [ 7661.776333] Free swap  = 262140kB
>    [ 7661.776333] Total swap = 262140kB
>    [ 7661.776333] 262140 pages RAM
>    [ 7661.776333] 7666 pages reserved
>    [ 7661.776333] 279499 pages shared
>    [ 7661.776333] 40372 pages non-shared
>    [ 7663.805629] SysRq : Show clockevent devices & pending hrtimers (no others)
>    [ 7663.806484] Timer List Version: v0.7
>    [ 7663.806484] HRTIMER_MAX_CLOCK_BASES: 4
>    [ 7663.806484] now at 7663812470113 nsecs
>    [ 7663.806484] 
>    [ 7663.806484] cpu: 0
>    [ 7663.806484]  clock 0:
>    [ 7663.806484]   .base:       ffff88003fc0e740
>    [ 7663.806484]   .index:      0
>    [ 7663.806484]   .resolution: 1 nsecs
>    [ 7663.806484]   .get_time:   ktime_get
>    [ 7663.806484]   .offset:     0 nsecs
>    [ 7663.806484] active timers:
>    [ 7663.806484]  #0: <ffff88003fc0e9a0>, tick_sched_timer, S:01, hrtimer_start, swapper/0/0
>    [ 7663.806484]  # expires at 7663938000000-7663938000000 nsecs [in 125529887 to 125529887 nsecs]
>    [ 7663.806484]  #1: <ffff880037141908>, hrtimer_wakeup, S:01, schedule_hrtimeout_range_clock, dmeventd/508
>    [ 7663.806484]  # expires at 7663939450867-7663940450865 nsecs [in 126980754 to 127980752 nsecs]
>    [ 7663.806484]  #2: <ffff88003c4f5908>, hrtimer_wakeup, S:01, schedule_hrtimeout_range_clock, tuned/812
>    [ 7663.806484]  # expires at 7663939557980-7663940557974 nsecs [in 127087867 to 128087861 nsecs]
>    [ 7663.806484]  #3: <ffff88003fc0eb40>, watchdog_timer_fn, S:01, hrtimer_start, watchdog/0/12
>    [ 7663.806484]  # expires at 7664090000000-7664090000000 nsecs [in 277529887 to 277529887 nsecs]
>    [ 7663.806484]  #4: <ffff88003c403eb8>, hrtimer_wakeup, S:01, do_nanosleep, crond/606
>    [ 7663.806484]  # expires at 7664666562660-7664666612660 nsecs [in 854092547 to 854142547 nsecs]
>    [ 7663.806484]  #5: <ffff880037133a50>, hrtimer_wakeup, S:01, schedule_hrtimeout_range_clock, NetworkManager/599
>    [ 7663.806484]  # expires at 7685000072727-7685100072727 nsecs [in 21187602614 to 21287602614 nsecs]
>    [ 7663.806484]  #6: <ffff88003729bdd8>, hrtimer_wakeup, S:01, schedule_hrtimeout_range_clock, auditd/563
>    [ 7663.806484]  # expires at 7709808152263-7709867895262 nsecs [in 45995682150 to 46055425149 nsecs]
>    [ 7663.806484]  #7: <ffff88003cf57dd8>, hrtimer_wakeup, S:01, schedule_hrtimeout_range_clock, master/1472
>    [ 7663.806484]  # expires at 7711466503304-7711526503303 nsecs [in 47654033191 to 47714033190 nsecs]
>    [ 7663.806484]  #8: <ffff88003c435dd8>, hrtimer_wakeup, S:01, schedule_hrtimeout_range_clock, pickup/2708
>    [ 7663.806484]  # expires at 7751466426614-7751566426613 nsecs [in 87653956501 to 87753956500 nsecs]
>    [ 7663.806484]  #9: <ffff88003ccb9908>, hrtimer_wakeup, S:01, schedule_hrtimeout_range_clock, dhclient/806
>    [ 7663.806484]  # expires at 7757801176148-7757901176148 nsecs [in 93988706035 to 94088706035 nsecs]
>    [ 7663.806484]  #10: <ffff880037179600>, timerfd_tmrproc, S:01, hrtimer_start, systemd-journal/465
>    [ 7663.806484]  # expires at 7770603766516-7770603766516 nsecs [in 106791296403 to 106791296403 nsecs]
>    [ 7663.806484]  #11: <ffff88003c6f7dd8>, hrtimer_wakeup, S:01, schedule_hrtimeout_range_clock, qmgr/1483
>    [ 7663.806484]  # expires at 7823337035028-7823437035028 nsecs [in 159524564915 to 159624564915 nsecs]
>    [ 7663.806484]  #12: <ffff880000027b08>, it_real_fn, S:01, hrtimer_start, qmgr/1483
>    [ 7663.806484]  # expires at 7856336975664-7856336975664 nsecs [in 192524505551 to 192524505551 nsecs]
>    [ 7663.806484]  #13: <ffff880037173208>, it_real_fn, S:01, hrtimer_start, master/1472
>    [ 7663.806484]  # expires at 7984466502654-7984466502654 nsecs [in 320654032541 to 320654032541 nsecs]
>    [ 7663.806484]  #14: <ffff8800372cb908>, hrtimer_wakeup, S:01, schedule_hrtimeout_range_clock, tuned/596
>    [ 7663.806484]  # expires at 10805788441877-10805888441877 nsecs [in 3141975971764 to 3142075971764 nsecs]
>    [ 7663.806484]  #15: <ffff88003c44fb08>, it_real_fn, S:01, hrtimer_start, pickup/2708
>    [ 7663.806484]  # expires at 13651466424310-13651466424310 nsecs [in 5987653954197 to 5987653954197 nsecs]
>    [ 7663.806484]  #16: <ffff88003d351a50>, hrtimer_wakeup, S:01, schedule_hrtimeout_range_clock, rhsmcertd/861
>    [ 7663.806484]  # expires at 14423107950535-14423207950535 nsecs [in 6759295480422 to 6759395480422 nsecs]
>    [ 7663.806484]  #17: <ffff88003d231908>, hrtimer_wakeup, S:01, schedule_hrtimeout_range_clock, rsyslogd/601
>    [ 7663.806484]  # expires at 86404492405243-86404592405243 nsecs [in 78740679935130 to 78740779935130 nsecs]
>    [ 7663.806484]  #18: <ffff88003e0236c0>, timerfd_tmrproc, S:01, hrtimer_start, systemd/1
>    [ 7663.806484]  # expires at 87300001794000-87300001794000 nsecs [in 79636189323887 to 79636189323887 nsecs]
>    [ 7663.806484]  clock 1:
>    [ 7663.806484]   .base:       ffff88003fc0e780
>    [ 7663.806484]   .index:      1
>    [ 7663.806484]   .resolution: 1 nsecs
>    [ 7663.806484]   .get_time:   ktime_get_real
>    [ 7663.806484]   .offset:     1397053876866859059 nsecs
>    [ 7663.806484] active timers:
>    [ 7663.806484]  #0: <ffff88003e023480>, timerfd_tmrproc, S:01, hrtimer_start, systemd/1
>    [ 7663.806484]  # expires at 9223372036854775807-9223372036854775807 nsecs [in 9223364373042305694 to 9223364373042305694 nsecs]
>    [ 7663.806484]  clock 2:
>    [ 7663.806484]   .base:       ffff88003fc0e7c0
>    [ 7663.806484]   .index:      2
>    [ 7663.806484]   .resolution: 1 nsecs
>    [ 7663.806484]   .get_time:   ktime_get_boottime
>    [ 7663.806484]   .offset:     0 nsecs
>    [ 7663.806484] active timers:
>    [ 7663.806484]  clock 3:
>    [ 7663.806484]   .base:       ffff88003fc0e800
>    [ 7663.806484]   .index:      3
>    [ 7663.806484]   .resolution: 1 nsecs
>    [ 7663.806484]   .get_time:   ktime_get_clocktai
>    [ 7663.806484]   .offset:     1397053876866859059 nsecs
>    [ 7663.806484] active timers:
>    [ 7663.806484]   .expires_next   : 7663938000000 nsecs
>    [ 7663.806484]   .hres_active    : 1
>    [ 7663.806484]   .nr_events      : 96176
>    [ 7663.806484]   .nr_retries     : 123
>    [ 7663.806484]   .nr_hangs       : 0
>    [ 7663.806484]   .max_hang_time  : 0 nsecs
>    [ 7663.806484]   .nohz_mode      : 2
>    [ 7663.806484]   .last_tick      : 7663739000000 nsecs
>    [ 7663.806484]   .tick_stopped   : 1
>    [ 7663.806484]   .idle_jiffies   : 4302331034
>    [ 7663.806484]   .idle_calls     : 246807
>    [ 7663.806484]   .idle_sleeps    : 221314
>    [ 7663.806484]   .idle_entrytime : 7663805483920 nsecs
>    [ 7663.806484]   .idle_waketime  : 7663805483920 nsecs
>    [ 7663.806484]   .idle_exittime  : 7663738044446 nsecs
>    [ 7663.806484]   .idle_sleeptime : 7145847567358 nsecs
>    [ 7663.806484]   .iowait_sleeptime: 462805751683 nsecs
>    [ 7663.806484]   .last_jiffies   : 4302331034
>    [ 7663.806484]   .next_jiffies   : 4302331234
>    [ 7663.806484]   .idle_expires   : 7663938000000 nsecs
>    [ 7663.806484] jiffies: 4302331101
>    [ 7663.806484] 
>    [ 7663.806484] Tick Device: mode:     1
>    [ 7663.806484] Broadcast device
>    [ 7663.806484] Clock Event Device: pit
>    [ 7663.806484]  max_delta_ns:   27461860
>    [ 7663.806484]  min_delta_ns:   12572
>    [ 7663.806484]  mult:           5124678
>    [ 7663.806484]  shift:          32
>    [ 7663.806484]  mode:           1
>    [ 7663.806484]  next_event:     9223372036854775807 nsecs
>    [ 7663.806484]  set_next_event: pit_next_event
>    [ 7663.806484]  set_mode:       init_pit_timer
>    [ 7663.806484]  event_handler:  tick_handle_oneshot_broadcast
>    [ 7663.806484]  retries:        0
>    [ 7663.806484] 
>    [ 7663.806484] tick_broadcast_mask: 00000000
>    [ 7663.806484] tick_broadcast_oneshot_mask: 00000000
>    [ 7663.806484] 
>    [ 7663.806484] Tick Device: mode:     1
>    [ 7663.806484] Per CPU device: 0
>    [ 7663.806484] Clock Event Device: lapic
>    [ 7663.806484]  max_delta_ns:   34365357831
>    [ 7663.806484]  min_delta_ns:   1000
>    [ 7663.806484]  mult:           268391561
>    [ 7663.806484]  shift:          32
>    [ 7663.806484]  mode:           3
>    [ 7663.806484]  next_event:     7663938000000 nsecs
>    [ 7663.806484]  set_next_event: lapic_next_event
>    [ 7663.806484]  set_mode:       lapic_timer_setup
>    [ 7663.806484]  event_handler:  hrtimer_interrupt
>    [ 7663.806484]  retries:        0
>    [ 7663.806484] 
>    [ 7665.840373] SysRq : Show State
>    [ 7665.841183]   task                        PC stack   pid father
>    [ 7665.841183] systemd         S ffff88003fc14540     0     1      0 0x00000000
>    [ 7665.841183]  ffff88003da8ddb8 0000000000000082 ffff88003da8dfd8 0000000000014540
>    [ 7665.841183]  ffff88003da8dfd8 0000000000014540 ffff88003da90000 0000000000000000
>    [ 7665.841183]  0000000000000000 ffff8800374064e0 ffff88003da90000 0000000000000000
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff815f0c2d>] schedule_hrtimeout_range_clock+0x14d/0x170
>    [ 7665.841183]  [<ffffffff811cabf8>] ? destroy_inode+0x38/0x60
>    [ 7665.841183]  [<ffffffff811c574f>] ? __d_free+0x3f/0x60
>    [ 7665.841183]  [<ffffffff815f0c63>] schedule_hrtimeout_range+0x13/0x20
>    [ 7665.841183]  [<ffffffff811f8226>] ep_poll+0x246/0x370
>    [ 7665.841183]  [<ffffffff811b1573>] ? __fput+0x183/0x270
>    [ 7665.841183]  [<ffffffff81097700>] ? wake_up_state+0x20/0x20
>    [ 7665.841183]  [<ffffffff811f932d>] SyS_epoll_wait+0xed/0x120
>    [ 7665.841183]  [<ffffffff815fc819>] system_call_fastpath+0x16/0x1b
>    [ 7665.841183] kthreadd        S ffff88003fc14540     0     2      0 0x00000000
>    [ 7665.841183]  ffff88003da9de70 0000000000000046 ffff88003da9dfd8 0000000000014540
>    [ 7665.841183]  ffff88003da9dfd8 0000000000014540 ffff88003da90b60 ffffffff81915940
>    [ 7665.841183]  ffff88003d515d38 ffff88003da90b60 ffff88003da90b60 ffff88003da90b60
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff81086626>] kthreadd+0x2f6/0x300
>    [ 7665.841183]  [<ffffffff81086330>] ? kthread_create_on_cpu+0x60/0x60
>    [ 7665.841183]  [<ffffffff815fc76c>] ret_from_fork+0x7c/0xb0
>    [ 7665.841183]  [<ffffffff81086330>] ? kthread_create_on_cpu+0x60/0x60
>    [ 7665.841183] ksoftirqd/0     S ffff88003fc14540     0     3      2 0x00000000
>    [ 7665.841183]  ffff88003da9fe60 0000000000000046 ffff88003da9ffd8 0000000000014540
>    [ 7665.841183]  ffff88003da9ffd8 0000000000014540 ffff88003da916c0 ffff88003da916c0
>    [ 7665.841183]  ffff88003e002440 ffffffff819090e0 ffff88003da916c0 ffff88003da916c0
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff8108e313>] smpboot_thread_fn+0xd3/0x1a0
>    [ 7665.841183]  [<ffffffff8108e240>] ? lg_global_unlock+0xc0/0xc0
>    [ 7665.841183]  [<ffffffff81085aef>] kthread+0xcf/0xe0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183]  [<ffffffff815fc76c>] ret_from_fork+0x7c/0xb0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183] kworker/0:0H    S ffff88003fc14540     0     5      2 0x00000000
>    [ 7665.841183]  ffff88003daabe50 0000000000000046 ffff88003daabfd8 0000000000014540
>    [ 7665.841183]  ffff88003daabfd8 0000000000014540 ffff88003da92d80 ffff88003fc14198
>    [ 7665.841183]  ffff88003da170b0 ffff88003da92d80 ffff88003da17080 ffff88003fc14180
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff8107eea9>] worker_thread+0x1c9/0x400
>    [ 7665.841183]  [<ffffffff8107ece0>] ? rescuer_thread+0x400/0x400
>    [ 7665.841183]  [<ffffffff81085aef>] kthread+0xcf/0xe0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183]  [<ffffffff815fc76c>] ret_from_fork+0x7c/0xb0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183] migration/0     S ffff88003fc14540     0     7      2 0x00000000
>    [ 7665.841183]  ffff88003dab1e60 0000000000000046 ffff88003dab1fd8 0000000000014540
>    [ 7665.841183]  ffff88003dab1fd8 0000000000014540 ffff88003da94440 ffff88003da94440
>    [ 7665.841183]  ffff88003e002450 ffffffff8191f700 ffff88003da94440 ffff88003da94440
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff8108e313>] smpboot_thread_fn+0xd3/0x1a0
>    [ 7665.841183]  [<ffffffff8108e240>] ? lg_global_unlock+0xc0/0xc0
>    [ 7665.841183]  [<ffffffff81085aef>] kthread+0xcf/0xe0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183]  [<ffffffff815fc76c>] ret_from_fork+0x7c/0xb0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183] rcu_bh          S ffff88003fc14540     0     8      2 0x00000000
>    [ 7665.841183]  ffff88003dab3e10 0000000000000046 ffff88003dab3fd8 0000000000014540
>    [ 7665.841183]  ffff88003dab3fd8 0000000000014540 ffff88003da94fa0 ffffffff81920500
>    [ 7665.841183]  ffff88003da94fa0 ffffffff81934b60 0000000000000000 0000000000000000
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff81100402>] rcu_gp_kthread+0xb2/0x780
>    [ 7665.841183]  [<ffffffff815f13d5>] ? __schedule+0x2c5/0x790
>    [ 7665.841183]  [<ffffffff81086ab0>] ? wake_up_bit+0x30/0x30
>    [ 7665.841183]  [<ffffffff81100350>] ? rcu_gp_fqs+0xa0/0xa0
>    [ 7665.841183]  [<ffffffff81085aef>] kthread+0xcf/0xe0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183]  [<ffffffff815fc76c>] ret_from_fork+0x7c/0xb0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183] rcuob/0         S ffff88003fc14540     0     9      2 0x00000000
>    [ 7665.841183]  ffff88003dab5df8 0000000000000046 ffff88003dab5fd8 0000000000014540
>    [ 7665.841183]  ffff88003dab5fd8 0000000000014540 ffff88003da95b00 ffff88003fc0ed30
>    [ 7665.841183]  ffff88003fc0ebe0 ffff88003da95b00 ffff88003da95b00 0000000000000000
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff810fedf9>] rcu_nocb_kthread+0x309/0x370
>    [ 7665.841183]  [<ffffffff815f13d5>] ? __schedule+0x2c5/0x790
>    [ 7665.841183]  [<ffffffff81086ab0>] ? wake_up_bit+0x30/0x30
>    [ 7665.841183]  [<ffffffff810feaf0>] ? rcu_start_gp+0x40/0x40
>    [ 7665.841183]  [<ffffffff81085aef>] kthread+0xcf/0xe0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183]  [<ffffffff815fc76c>] ret_from_fork+0x7c/0xb0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183] rcu_sched       S ffff88003fc14540     0    10      2 0x00000000
>    [ 7665.841183]  ffff88003dab7e10 0000000000000046 ffff88003dab7fd8 0000000000014540
>    [ 7665.841183]  ffff88003dab7fd8 0000000000014540 ffff88003da96660 ffffffff81934d00
>    [ 7665.841183]  ffff88003da96660 ffffffff81949360 ffff88003fc0ed60 0000000000000000
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff81100402>] rcu_gp_kthread+0xb2/0x780
>    [ 7665.841183]  [<ffffffff81086ab0>] ? wake_up_bit+0x30/0x30
>    [ 7665.841183]  [<ffffffff81100350>] ? rcu_gp_fqs+0xa0/0xa0
>    [ 7665.841183]  [<ffffffff81085aef>] kthread+0xcf/0xe0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183]  [<ffffffff815fc76c>] ret_from_fork+0x7c/0xb0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183] rcuos/0         S ffff88003fc14540     0    11      2 0x00000000
>    [ 7665.841183]  ffff88003dab9df8 0000000000000046 ffff88003dab9fd8 0000000000014540
>    [ 7665.841183]  ffff88003dab9fd8 0000000000014540 ffff88003da971c0 ffff88003fc0eeb0
>    [ 7665.841183]  ffff88003fc0ed60 ffff88003da971c0 ffff88003da971c0 ffff8800370db500
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff810fedf9>] rcu_nocb_kthread+0x309/0x370
>    [ 7665.841183]  [<ffffffff81086ab0>] ? wake_up_bit+0x30/0x30
>    [ 7665.841183]  [<ffffffff810feaf0>] ? rcu_start_gp+0x40/0x40
>    [ 7665.841183]  [<ffffffff81085aef>] kthread+0xcf/0xe0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183]  [<ffffffff815fc76c>] ret_from_fork+0x7c/0xb0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183] watchdog/0      S ffff88003fc14540     0    12      2 0x00000000
>    [ 7665.841183]  ffff88003dabde60 0000000000000046 ffff88003dabdfd8 0000000000014540
>    [ 7665.841183]  ffff88003dabdfd8 0000000000014540 ffff88003dac0000 ffff88003dac0000
>    [ 7665.841183]  ffff88003e0028c0 ffffffff8191ffc0 ffff88003dac0000 ffff88003dac0000
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff8108e313>] smpboot_thread_fn+0xd3/0x1a0
>    [ 7665.841183]  [<ffffffff8108e240>] ? lg_global_unlock+0xc0/0xc0
>    [ 7665.841183]  [<ffffffff81085aef>] kthread+0xcf/0xe0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183]  [<ffffffff815fc76c>] ret_from_fork+0x7c/0xb0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183] khelper         S ffff88003fc14540     0    13      2 0x00000000
>    [ 7665.841183]  ffff88003daebe20 0000000000000046 ffff88003daebfd8 0000000000014540
>    [ 7665.841183]  ffff88003daebfd8 0000000000014540 ffff88003dac0b60 ffff88003da17600
>    [ 7665.841183]  ffff88003dac0b60 ffff88003da18880 0000000000000000 ffff88003da17630
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff8107eb6a>] rescuer_thread+0x28a/0x400
>    [ 7665.841183]  [<ffffffff8107e8e0>] ? manage_workers.isra.25+0x2e0/0x2e0
>    [ 7665.841183]  [<ffffffff81085aef>] kthread+0xcf/0xe0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183]  [<ffffffff815fc76c>] ret_from_fork+0x7c/0xb0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183] kdevtmpfs       S ffff88003fc14540     0    14      2 0x00000000
>    [ 7665.841183]  ffff88003daefe70 0000000000000046 ffff88003daeffd8 0000000000014540
>    [ 7665.841183]  ffff88003daeffd8 0000000000014540 ffff88003dac16c0 0000000000000000
>    [ 7665.841183]  0000000000000000 ffff88003dac16c0 0000000000000000 0000000000000000
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff813bb718>] devtmpfsd+0x168/0x180
>    [ 7665.841183]  [<ffffffff813bb5b0>] ? handle_create.isra.2+0x220/0x220
>    [ 7665.841183]  [<ffffffff81085aef>] kthread+0xcf/0xe0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183]  [<ffffffff815fc76c>] ret_from_fork+0x7c/0xb0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183] netns           S ffff88003fc14540     0    15      2 0x00000000
>    [ 7665.841183]  ffff88003daf3e20 0000000000000046 ffff88003daf3fd8 0000000000014540
>    [ 7665.841183]  ffff88003daf3fd8 0000000000014540 ffff88003dac2220 ffff88003da2a800
>    [ 7665.841183]  ffff88003dac2220 ffff88003da2c080 0000000000000000 ffff88003da2a830
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff8107eb6a>] rescuer_thread+0x28a/0x400
>    [ 7665.841183]  [<ffffffff8107e8e0>] ? manage_workers.isra.25+0x2e0/0x2e0
>    [ 7665.841183]  [<ffffffff81085aef>] kthread+0xcf/0xe0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183]  [<ffffffff815fc76c>] ret_from_fork+0x7c/0xb0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183] writeback       S ffff88003fc14540     0    16      2 0x00000000
>    [ 7665.841183]  ffff88003db43e20 0000000000000046 ffff88003db43fd8 0000000000014540
>    [ 7665.841183]  ffff88003db43fd8 0000000000014540 ffff88003dac2d80 ffff88003db1ca80
>    [ 7665.841183]  ffff88003dac2d80 ffff88003db29e80 ffff88003daad800 ffff88003db1cab0
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff8107eb6a>] rescuer_thread+0x28a/0x400
>    [ 7665.841183]  [<ffffffff8107e8e0>] ? manage_workers.isra.25+0x2e0/0x2e0
>    [ 7665.841183]  [<ffffffff81085aef>] kthread+0xcf/0xe0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183]  [<ffffffff815fc76c>] ret_from_fork+0x7c/0xb0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183] kintegrityd     S ffff88003fc14540     0    17      2 0x00000000
>    [ 7665.841183]  ffff88003db45e20 0000000000000046 ffff88003db45fd8 0000000000014540
>    [ 7665.841183]  ffff88003db45fd8 0000000000014540 ffff88003dac38e0 ffff88003db1cb80
>    [ 7665.841183]  ffff88003dac38e0 ffff88003db33080 0000000000000000 ffff88003db1cbb0
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff8107eb6a>] rescuer_thread+0x28a/0x400
>    [ 7665.841183]  [<ffffffff8107e8e0>] ? manage_workers.isra.25+0x2e0/0x2e0
>    [ 7665.841183]  [<ffffffff81085aef>] kthread+0xcf/0xe0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183]  [<ffffffff815fc76c>] ret_from_fork+0x7c/0xb0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183] bioset          S ffff88003fc14540     0    18      2 0x00000000
>    [ 7665.841183]  ffff88003db47e20 0000000000000046 ffff88003db47fd8 0000000000014540
>    [ 7665.841183]  ffff88003db47fd8 0000000000014540 ffff88003dac4440 ffff88003db1cd00
>    [ 7665.841183]  ffff88003dac4440 ffff88003db33280 0000000000000000 ffff88003db1cd30
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff8107eb6a>] rescuer_thread+0x28a/0x400
>    [ 7665.841183]  [<ffffffff8107e8e0>] ? manage_workers.isra.25+0x2e0/0x2e0
>    [ 7665.841183]  [<ffffffff81085aef>] kthread+0xcf/0xe0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183]  [<ffffffff815fc76c>] ret_from_fork+0x7c/0xb0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183] kblockd         S ffff88003fc14540     0    19      2 0x00000000
>    [ 7665.841183]  ffff88003db55e20 0000000000000046 ffff88003db55fd8 0000000000014540
>    [ 7665.841183]  ffff88003db55fd8 0000000000014540 ffff88003dac4fa0 ffff88003db1ce00
>    [ 7665.841183]  ffff88003dac4fa0 ffff88003db33a80 0000000000000000 ffff88003db1ce30
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff8107eb6a>] rescuer_thread+0x28a/0x400
>    [ 7665.841183]  [<ffffffff8107e8e0>] ? manage_workers.isra.25+0x2e0/0x2e0
>    [ 7665.841183]  [<ffffffff81085aef>] kthread+0xcf/0xe0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183]  [<ffffffff815fc76c>] ret_from_fork+0x7c/0xb0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183] khubd           S ffff88003fc14540     0    20      2 0x00000000
>    [ 7665.841183]  ffff88003dbdfe58 0000000000000046 ffff88003dbdffd8 0000000000014540
>    [ 7665.841183]  ffff88003dbdffd8 0000000000014540 ffff88003dac5b00 ffff88003dac5b00
>    [ 7665.841183]  ffff88003dac5b00 ffff88003dbdfe90 0000000000000000 0000000000000000
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff8140040b>] hub_thread+0x11b/0x1a0
>    [ 7665.841183]  [<ffffffff81086ab0>] ? wake_up_bit+0x30/0x30
>    [ 7665.841183]  [<ffffffff814002f0>] ? hub_events+0xa10/0xa10
>    [ 7665.841183]  [<ffffffff81085aef>] kthread+0xcf/0xe0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183]  [<ffffffff815fc76c>] ret_from_fork+0x7c/0xb0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183] md              S ffff88003fc14540     0    21      2 0x00000000
>    [ 7665.841183]  ffff88003dbf1e20 0000000000000046 ffff88003dbf1fd8 0000000000014540
>    [ 7665.841183]  ffff88003dbf1fd8 0000000000014540 ffff88003dac6660 ffff88003dba6700
>    [ 7665.841183]  ffff88003dac6660 ffff88003dbccc80 0000000000000000 ffff88003dba6730
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff8107eb6a>] rescuer_thread+0x28a/0x400
>    [ 7665.841183]  [<ffffffff8107e8e0>] ? manage_workers.isra.25+0x2e0/0x2e0
>    [ 7665.841183]  [<ffffffff81085aef>] kthread+0xcf/0xe0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183]  [<ffffffff815fc76c>] ret_from_fork+0x7c/0xb0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183] kswapd0         S ffff88003fc14540     0    24      2 0x00000000
>    [ 7665.841183]  ffff88003d4dfe10 0000000000000046 ffff88003d4dffd8 0000000000014540
>    [ 7665.841183]  ffff88003d4dffd8 0000000000014540 ffff88003bbb0000 ffff88003ffd6000
>    [ 7665.841183]  ffff88003fffc1e8 0000000000000000 ffff88003d4dfe80 0000000000000000
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff8115788c>] kswapd+0x38c/0x430
>    [ 7665.841183]  [<ffffffff81086ab0>] ? wake_up_bit+0x30/0x30
>    [ 7665.841183]  [<ffffffff81157500>] ? balance_pgdat+0x5e0/0x5e0
>    [ 7665.841183]  [<ffffffff81085aef>] kthread+0xcf/0xe0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183]  [<ffffffff815fc76c>] ret_from_fork+0x7c/0xb0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183] ksmd            S ffff88003fc14540     0    25      2 0x00000000
>    [ 7665.841183]  ffff88003d4d9e50 0000000000000046 ffff88003d4d9fd8 0000000000014540
>    [ 7665.841183]  ffff88003d4d9fd8 0000000000014540 ffff88003bbb0b60 ffff88003bbb0b60
>    [ 7665.841183]  ffff88003bbb0b60 ffff88003d4d9e88 ffff88003bbb0b60 0000000000000000
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff8119030a>] ksm_scan_thread+0x16a/0x240
>    [ 7665.841183]  [<ffffffff81086ab0>] ? wake_up_bit+0x30/0x30
>    [ 7665.841183]  [<ffffffff811901a0>] ? ksm_do_scan+0xd90/0xd90
>    [ 7665.841183]  [<ffffffff81085aef>] kthread+0xcf/0xe0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183]  [<ffffffff815fc76c>] ret_from_fork+0x7c/0xb0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183] khugepaged      S ffff88003fc14540     0    26      2 0x00000000
>    [ 7665.841183]  ffff88003bbefd80 0000000000000046 ffff88003bbeffd8 0000000000014540
>    [ 7665.841183]  ffff88003bbeffd8 0000000000014540 ffff88003bbb16c0 ffffffff81cab4c0
>    [ 7665.841183]  ffff88003bbefdb0 0000000100707b27 ffffffff81cab4c0 000000000000e6e8
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff815ef735>] schedule_timeout+0x175/0x2d0
>    [ 7665.841183]  [<ffffffff8106e070>] ? __internal_add_timer+0x130/0x130
>    [ 7665.841183]  [<ffffffff81086806>] ? prepare_to_wait+0x56/0x90
>    [ 7665.841183]  [<ffffffff8119de03>] khugepaged+0x1e3/0x4a0
>    [ 7665.841183]  [<ffffffff81086ab0>] ? wake_up_bit+0x30/0x30
>    [ 7665.841183]  [<ffffffff8119dc20>] ? khugepaged_scan_mm_slot+0xcc0/0xcc0
>    [ 7665.841183]  [<ffffffff81085aef>] kthread+0xcf/0xe0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183]  [<ffffffff815fc76c>] ret_from_fork+0x7c/0xb0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183] fsnotify_mark   S ffff88003fc14540     0    27      2 0x00000000
>    [ 7665.841183]  ffff88003bbf1e28 0000000000000046 ffff88003bbf1fd8 0000000000014540
>    [ 7665.841183]  ffff88003bbf1fd8 0000000000014540 ffff88003bbb2220 ffff88003bbf1e58
>    [ 7665.841183]  ffff88003bbf1e58 ffff88003bbb2220 ffff88003cf3bbb8 ffff88003bbf1e00
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff811f3371>] fsnotify_mark_destroy+0x141/0x180
>    [ 7665.841183]  [<ffffffff81086ab0>] ? wake_up_bit+0x30/0x30
>    [ 7665.841183]  [<ffffffff811f3230>] ? fsnotify_put_mark+0x40/0x40
>    [ 7665.841183]  [<ffffffff81085aef>] kthread+0xcf/0xe0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183]  [<ffffffff815fc76c>] ret_from_fork+0x7c/0xb0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183] crypto          S ffff88003fc14540     0    28      2 0x00000000
>    [ 7665.841183]  ffff880037017e20 0000000000000046 ffff880037017fd8 0000000000014540
>    [ 7665.841183]  ffff880037017fd8 0000000000014540 ffff88003bbb2d80 ffff88003bbe8600
>    [ 7665.841183]  ffff88003bbb2d80 ffff88003bbe7280 0000000000000000 ffff88003bbe8630
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff8107eb6a>] rescuer_thread+0x28a/0x400
>    [ 7665.841183]  [<ffffffff8107e8e0>] ? manage_workers.isra.25+0x2e0/0x2e0
>    [ 7665.841183]  [<ffffffff81085aef>] kthread+0xcf/0xe0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183]  [<ffffffff815fc76c>] ret_from_fork+0x7c/0xb0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183] kthrotld        S ffff88003fc14540     0    37      2 0x00000000
>    [ 7665.841183]  ffff88003700be20 0000000000000046 ffff88003700bfd8 0000000000014540
>    [ 7665.841183]  ffff88003700bfd8 0000000000014540 ffff880037028000 ffff88003bbe8b00
>    [ 7665.841183]  ffff880037028000 ffff88003bbe7680 0000000000000000 ffff88003bbe8b30
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff8107eb6a>] rescuer_thread+0x28a/0x400
>    [ 7665.841183]  [<ffffffff8107e8e0>] ? manage_workers.isra.25+0x2e0/0x2e0
>    [ 7665.841183]  [<ffffffff81085aef>] kthread+0xcf/0xe0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183]  [<ffffffff815fc76c>] ret_from_fork+0x7c/0xb0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183] kmpath_rdacd    S ffff88003fc14540     0    39      2 0x00000000
>    [ 7665.841183]  ffff88003704de20 0000000000000046 ffff88003704dfd8 0000000000014540
>    [ 7665.841183]  ffff88003704dfd8 0000000000014540 ffff8800370296c0 ffff88003bbf8500
>    [ 7665.841183]  ffff8800370296c0 ffff88003bbe7e80 0000000000000000 ffff88003bbf8530
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff8107eb6a>] rescuer_thread+0x28a/0x400
>    [ 7665.841183]  [<ffffffff8107e8e0>] ? manage_workers.isra.25+0x2e0/0x2e0
>    [ 7665.841183]  [<ffffffff81085aef>] kthread+0xcf/0xe0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183]  [<ffffffff815fc76c>] ret_from_fork+0x7c/0xb0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183] kpsmoused       S ffff88003fc14540     0    40      2 0x00000000
>    [ 7665.841183]  ffff88003708fe20 0000000000000046 ffff88003708ffd8 0000000000014540
>    [ 7665.841183]  ffff88003708ffd8 0000000000014540 ffff88003702a220 ffff88003bbf8d00
>    [ 7665.841183]  ffff88003702a220 ffff880037045680 0000000000000000 ffff88003bbf8d30
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff8107eb6a>] rescuer_thread+0x28a/0x400
>    [ 7665.841183]  [<ffffffff8107e8e0>] ? manage_workers.isra.25+0x2e0/0x2e0
>    [ 7665.841183]  [<ffffffff81085aef>] kthread+0xcf/0xe0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183]  [<ffffffff815fc76c>] ret_from_fork+0x7c/0xb0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183] deferwq         S ffff88003fc14540     0    59      2 0x00000000
>    [ 7665.841183]  ffff8800370d1e20 0000000000000046 ffff8800370d1fd8 0000000000014540
>    [ 7665.841183]  ffff8800370d1fd8 0000000000014540 ffff88003702e660 ffff8800370ac100
>    [ 7665.841183]  ffff88003702e660 ffff88003706be80 ffff88003daad800 ffff8800370ac130
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff8107eb6a>] rescuer_thread+0x28a/0x400
>    [ 7665.841183]  [<ffffffff8107e8e0>] ? manage_workers.isra.25+0x2e0/0x2e0
>    [ 7665.841183]  [<ffffffff81085aef>] kthread+0xcf/0xe0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183]  [<ffffffff815fc76c>] ret_from_fork+0x7c/0xb0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183] kauditd         S ffff88003fc14540     0    88      2 0x00000000
>    [ 7665.841183]  ffff880037199e40 0000000000000046 ffff880037199fd8 0000000000014540
>    [ 7665.841183]  ffff880037199fd8 0000000000014540 ffff88003702ad80 0000000000000000
>    [ 7665.841183]  ffff88003702ad80 ffff88003702ad80 ffff88003702ad80 ffff88003702ad80
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff810df734>] kauditd_thread+0x184/0x1e0
>    [ 7665.841183]  [<ffffffff81097700>] ? wake_up_state+0x20/0x20
>    [ 7665.841183]  [<ffffffff810df5b0>] ? audit_printk_skb+0x70/0x70
>    [ 7665.841183]  [<ffffffff81085aef>] kthread+0xcf/0xe0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183]  [<ffffffff815fc76c>] ret_from_fork+0x7c/0xb0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183] ata_sff         S ffff88003fc14540     0   211      2 0x00000000
>    [ 7665.841183]  ffff88003752fe20 0000000000000046 ffff88003752ffd8 0000000000014540
>    [ 7665.841183]  ffff88003752ffd8 0000000000014540 ffff8800372871c0 ffff88003d437680
>    [ 7665.841183]  ffff8800372871c0 ffff8800373d5080 0000000000000000 ffff88003d4376b0
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff8107eb6a>] rescuer_thread+0x28a/0x400
>    [ 7665.841183]  [<ffffffff8107e8e0>] ? manage_workers.isra.25+0x2e0/0x2e0
>    [ 7665.841183]  [<ffffffff81085aef>] kthread+0xcf/0xe0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183]  [<ffffffff815fc76c>] ret_from_fork+0x7c/0xb0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183] scsi_eh_0       S ffff88003fc14540     0   212      2 0x00000000
>    [ 7665.841183]  ffff880037459e20 0000000000000046 ffff880037459fd8 0000000000014540
>    [ 7665.841183]  ffff880037459fd8 0000000000014540 ffff880037284440 ffff880037428800
>    [ 7665.841183]  0000000000000246 ffff880037284ab8 0000000000000000 0000000000000000
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff813e4518>] scsi_error_handler+0x98/0x820
>    [ 7665.841183]  [<ffffffff813e4480>] ? scsi_eh_get_sense+0x2a0/0x2a0
>    [ 7665.841183]  [<ffffffff81085aef>] kthread+0xcf/0xe0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183]  [<ffffffff815fc76c>] ret_from_fork+0x7c/0xb0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183] scsi_tmf_0      S ffff88003fc14540     0   213      2 0x00000000
>    [ 7665.841183]  ffff880037421e20 0000000000000046 ffff880037421fd8 0000000000014540
>    [ 7665.841183]  ffff880037421fd8 0000000000014540 ffff880037282220 ffff8800374a5600
>    [ 7665.841183]  ffff880037282220 ffff8800373cd880 0000000000000000 ffff8800374a5630
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff8107eb6a>] rescuer_thread+0x28a/0x400
>    [ 7665.841183]  [<ffffffff8107e8e0>] ? manage_workers.isra.25+0x2e0/0x2e0
>    [ 7665.841183]  [<ffffffff81085aef>] kthread+0xcf/0xe0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183]  [<ffffffff815fc76c>] ret_from_fork+0x7c/0xb0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183] scsi_eh_1       S ffff88003fc14540     0   215      2 0x00000000
>    [ 7665.841183]  ffff880037467e20 0000000000000046 ffff880037467fd8 0000000000014540
>    [ 7665.841183]  ffff880037467fd8 0000000000014540 ffff880037285b00 ffff880037429000
>    [ 7665.841183]  0000000000000246 ffff880037286178 0000000000000000 0000000000000000
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff813e4518>] scsi_error_handler+0x98/0x820
>    [ 7665.841183]  [<ffffffff813e4480>] ? scsi_eh_get_sense+0x2a0/0x2a0
>    [ 7665.841183]  [<ffffffff81085aef>] kthread+0xcf/0xe0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183]  [<ffffffff815fc76c>] ret_from_fork+0x7c/0xb0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183] scsi_tmf_1      S ffff88003fc14540     0   216      2 0x00000000
>    [ 7665.841183]  ffff8800375f7e20 0000000000000046 ffff8800375f7fd8 0000000000014540
>    [ 7665.841183]  ffff8800375f7fd8 0000000000014540 ffff880037280b60 ffff8800374a5100
>    [ 7665.841183]  ffff880037280b60 ffff88003733ca80 0000000000000000 ffff8800374a5130
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff8107eb6a>] rescuer_thread+0x28a/0x400
>    [ 7665.841183]  [<ffffffff8107e8e0>] ? manage_workers.isra.25+0x2e0/0x2e0
>    [ 7665.841183]  [<ffffffff81085aef>] kthread+0xcf/0xe0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183]  [<ffffffff815fc76c>] ret_from_fork+0x7c/0xb0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183] scsi_eh_2       S ffff88003fc14540     0   218      2 0x00000000
>    [ 7665.841183]  ffff880037487e20 0000000000000046 ffff880037487fd8 0000000000014540
>    [ 7665.841183]  ffff880037487fd8 0000000000014540 ffff8800372a2220 ffff8800373d9000
>    [ 7665.841183]  ffff8800373d9000 ffff8800372a2898 0000000000000000 0000000000000000
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff813e4518>] scsi_error_handler+0x98/0x820
>    [ 7665.841183]  [<ffffffff813e4480>] ? scsi_eh_get_sense+0x2a0/0x2a0
>    [ 7665.841183]  [<ffffffff81085aef>] kthread+0xcf/0xe0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183]  [<ffffffff815fc76c>] ret_from_fork+0x7c/0xb0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183] ttm_swap        S ffff88003fc14540     0   220      2 0x00000000
>    [ 7665.841183]  ffff880037469e20 0000000000000046 ffff880037469fd8 0000000000014540
>    [ 7665.841183]  ffff880037469fd8 0000000000014540 ffff88003727f1c0 ffff880037517000
>    [ 7665.841183]  ffff88003727f1c0 ffff88003733c280 0000000000000000 ffff880037517030
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff8107eb6a>] rescuer_thread+0x28a/0x400
>    [ 7665.841183]  [<ffffffff8107e8e0>] ? manage_workers.isra.25+0x2e0/0x2e0
>    [ 7665.841183]  [<ffffffff81085aef>] kthread+0xcf/0xe0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183]  [<ffffffff815fc76c>] ret_from_fork+0x7c/0xb0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183] scsi_tmf_2      S ffff88003fc14540     0   222      2 0x00000000
>    [ 7665.841183]  ffff88003746de20 0000000000000046 ffff88003746dfd8 0000000000014540
>    [ 7665.841183]  ffff88003746dfd8 0000000000014540 ffff88003727cfa0 ffff880037517180
>    [ 7665.841183]  ffff88003727cfa0 ffff88003733c680 0000000000000000 ffff8800375171b0
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff8107eb6a>] rescuer_thread+0x28a/0x400
>    [ 7665.841183]  [<ffffffff8107e8e0>] ? manage_workers.isra.25+0x2e0/0x2e0
>    [ 7665.841183]  [<ffffffff81085aef>] kthread+0xcf/0xe0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183]  [<ffffffff815fc76c>] ret_from_fork+0x7c/0xb0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183] kdmflush        S ffff88003fc14540     0   364      2 0x00000000
>    [ 7665.841183]  ffff8800368dde20 0000000000000046 ffff8800368ddfd8 0000000000014540
>    [ 7665.841183]  ffff8800368ddfd8 0000000000014540 ffff88003727b8e0 ffff880036904980
>    [ 7665.841183]  ffff88003727b8e0 ffff88003756c880 0000000000000000 ffff8800369049b0
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff8107eb6a>] rescuer_thread+0x28a/0x400
>    [ 7665.841183]  [<ffffffff8107e8e0>] ? manage_workers.isra.25+0x2e0/0x2e0
>    [ 7665.841183]  [<ffffffff81085aef>] kthread+0xcf/0xe0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183]  [<ffffffff815fc76c>] ret_from_fork+0x7c/0xb0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183] jbd2/dm-3-8     D ffff88003fc14540     0   396      2 0x00000000
>    [ 7665.841183]  ffff880036815ba8 0000000000000046 ffff880036815fd8 0000000000014540
>    [ 7665.841183]  ffff880036815fd8 0000000000014540 ffff88003702b8e0 ffff88003fc14e08
>    [ 7665.841183]  ffff88003ff5aa18 0000000000000002 ffffffff811e1190 ffff880036815c20
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff811e1190>] ? generic_block_bmap+0x70/0x70
>    [ 7665.841183]  [<ffffffff815f1bed>] io_schedule+0x9d/0x140
>    [ 7665.841183]  [<ffffffff811e119e>] sleep_on_buffer+0xe/0x20
>    [ 7665.841183]  [<ffffffff815ef950>] __wait_on_bit+0x60/0x90
>    [ 7665.841183]  [<ffffffff811e1190>] ? generic_block_bmap+0x70/0x70
>    [ 7665.841183]  [<ffffffff815efa07>] out_of_line_wait_on_bit+0x87/0xb0
>    [ 7665.841183]  [<ffffffff81086af0>] ? autoremove_wake_function+0x40/0x40
>    [ 7665.841183]  [<ffffffff811e257a>] __wait_on_buffer+0x2a/0x30
>    [ 7665.841183]  [<ffffffffa0199901>] jbd2_journal_commit_transaction+0xe01/0x1950 [jbd2]
>    [ 7665.841183]  [<ffffffffa019e799>] kjournald2+0xc9/0x270 [jbd2]
>    [ 7665.841183]  [<ffffffff81086ab0>] ? wake_up_bit+0x30/0x30
>    [ 7665.841183]  [<ffffffffa019e6d0>] ? commit_timeout+0x10/0x10 [jbd2]
>    [ 7665.841183]  [<ffffffff81085aef>] kthread+0xcf/0xe0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183]  [<ffffffff815fc76c>] ret_from_fork+0x7c/0xb0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183] ext4-dio-unwrit S ffff88003fc14540     0   397      2 0x00000000
>    [ 7665.841183]  ffff880036fb9e20 0000000000000046 ffff880036fb9fd8 0000000000014540
>    [ 7665.841183]  ffff880036fb9fd8 0000000000014540 ffff88003702c440 ffff880036f70a00
>    [ 7665.841183]  ffff88003702c440 ffff88003756e280 0000000000000000 ffff880036f70a30
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff8107eb6a>] rescuer_thread+0x28a/0x400
>    [ 7665.841183]  [<ffffffff8107e8e0>] ? manage_workers.isra.25+0x2e0/0x2e0
>    [ 7665.841183]  [<ffffffff81085aef>] kthread+0xcf/0xe0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183]  [<ffffffff815fc76c>] ret_from_fork+0x7c/0xb0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183] bash            S ffff88003fc14540     0   463      1 0x00000000
>    [ 7665.841183]  ffff88003c4bfd00 0000000000000086 ffff88003c4bffd8 0000000000014540
>    [ 7665.841183]  ffff88003c4bffd8 0000000000014540 ffff8800372a0000 ffff88003d4e5d00
>    [ 7665.841183]  7fffffffffffffff ffff88003756b400 ffff88003756b400 ffff88003756b000
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff815ef7c9>] schedule_timeout+0x209/0x2d0
>    [ 7665.841183]  [<ffffffff8107f23b>] ? flush_work+0x15b/0x1c0
>    [ 7665.841183]  [<ffffffff8137419f>] n_tty_read+0x27f/0x9a0
>    [ 7665.841183]  [<ffffffff81097700>] ? wake_up_state+0x20/0x20
>    [ 7665.841183]  [<ffffffff8136f9bd>] tty_read+0x8d/0x100
>    [ 7665.841183]  [<ffffffff811af81c>] vfs_read+0x9c/0x170
>    [ 7665.841183]  [<ffffffff811b0348>] SyS_read+0x58/0xb0
>    [ 7665.841183]  [<ffffffff815fc819>] system_call_fastpath+0x16/0x1b
>    [ 7665.841183] systemd-journal S ffff88003fc14540     0   465      1 0x00000000
>    [ 7665.841183]  ffff880037547db8 0000000000000082 ffff880037547fd8 0000000000014540
>    [ 7665.841183]  ffff880037547fd8 0000000000014540 ffff8800372a0b60 0000000000000000
>    [ 7665.841183]  0000000000000000 ffff880037538ba0 ffff8800372a0b60 0000000000000000
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff815f0c2d>] schedule_hrtimeout_range_clock+0x14d/0x170
>    [ 7665.841183]  [<ffffffff811f7f89>] ? ep_scan_ready_list.isra.9+0x1b9/0x1f0
>    [ 7665.841183]  [<ffffffff815f0c63>] schedule_hrtimeout_range+0x13/0x20
>    [ 7665.841183]  [<ffffffff811f8226>] ep_poll+0x246/0x370
>    [ 7665.841183]  [<ffffffff811adab6>] ? do_truncate+0x86/0xc0
>    [ 7665.841183]  [<ffffffff811b2258>] ? __sb_start_write+0x58/0x110
>    [ 7665.841183]  [<ffffffff81097700>] ? wake_up_state+0x20/0x20
>    [ 7665.841183]  [<ffffffff811f932d>] SyS_epoll_wait+0xed/0x120
>    [ 7665.841183]  [<ffffffff815fc819>] system_call_fastpath+0x16/0x1b
>    [ 7665.841183] lvmetad         S ffff88003fc14540     0   474      1 0x00000000
>    [ 7665.841183]  ffff88003684b8e8 0000000000000086 ffff88003684bfd8 0000000000014540
>    [ 7665.841183]  ffff88003684bfd8 0000000000014540 ffff8800372771c0 0000000000000000
>    [ 7665.841183]  ffff8800372771c0 00000000fffffffc 0000000000000004 0000000000000004
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff815f0c2d>] schedule_hrtimeout_range_clock+0x14d/0x170
>    [ 7665.841183]  [<ffffffff8108674c>] ? add_wait_queue+0x3c/0x50
>    [ 7665.841183]  [<ffffffff811c37af>] ? __pollwait+0x7f/0xf0
>    [ 7665.841183]  [<ffffffff815f0c63>] schedule_hrtimeout_range+0x13/0x20
>    [ 7665.841183]  [<ffffffff811c3a90>] poll_schedule_timeout+0x60/0xc0
>    [ 7665.841183]  [<ffffffff811c4411>] do_select+0x6d1/0x7c0
>    [ 7665.841183]  [<ffffffff8115fd49>] ? zone_statistics+0x89/0xa0
>    [ 7665.841183]  [<ffffffff811c39a0>] ? poll_select_copy_remaining+0x150/0x150
>    [ 7665.841183]  [<ffffffff812d028d>] ? list_del+0xd/0x30
>    [ 7665.841183]  [<ffffffff811483f9>] ? __rmqueue+0x89/0x440
>    [ 7665.841183]  [<ffffffff8115fd49>] ? zone_statistics+0x89/0xa0
>    [ 7665.841183]  [<ffffffff8114ac24>] ? __alloc_pages_nodemask+0x174/0xb10
>    [ 7665.841183]  [<ffffffff8104606f>] ? kvm_clock_read+0x1f/0x30
>    [ 7665.841183]  [<ffffffff811c46db>] core_sys_select+0x1db/0x300
>    [ 7665.841183]  [<ffffffff810a11cd>] ? check_preempt_wakeup+0x11d/0x250
>    [ 7665.841183]  [<ffffffff81097824>] ? wake_up_new_task+0x104/0x160
>    [ 7665.841183]  [<ffffffff8105d0db>] ? do_fork+0x10b/0x360
>    [ 7665.841183]  [<ffffffff811c48ba>] SyS_select+0xba/0x110
>    [ 7665.841183]  [<ffffffff8105d3b6>] ? SyS_clone+0x16/0x20
>    [ 7665.841183]  [<ffffffff815fc819>] system_call_fastpath+0x16/0x1b
>    [ 7665.841183] lvmetad         S ffff88003fc14540     0  2197      1 0x00000080
>    [ 7665.841183]  ffff88003cec9b90 0000000000000086 ffff88003cec9fd8 0000000000014540
>    [ 7665.841183]  ffff88003cec9fd8 0000000000014540 ffff88003c72cfa0 ffff88003c72cfa0
>    [ 7665.841183]  ffff88003c72cfa0 ffff88003d49cae0 ffff88003d49c780 7fffffffffffffff
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff815ef7c9>] schedule_timeout+0x209/0x2d0
>    [ 7665.841183]  [<ffffffff814cb221>] ? __alloc_skb+0xa1/0x2d0
>    [ 7665.841183]  [<ffffffff8157de4b>] unix_stream_recvmsg+0x31b/0x8d0
>    [ 7665.841183]  [<ffffffff81090a7f>] ? __wake_up_sync_key+0x4f/0x60
>    [ 7665.841183]  [<ffffffff81086ab0>] ? wake_up_bit+0x30/0x30
>    [ 7665.841183]  [<ffffffff814c1366>] sock_aio_read.part.7+0x146/0x160
>    [ 7665.841183]  [<ffffffff81176971>] ? page_add_new_anon_rmap+0x91/0x130
>    [ 7665.841183]  [<ffffffff814c13a1>] sock_aio_read+0x21/0x30
>    [ 7665.841183]  [<ffffffff811af13d>] do_sync_read+0x8d/0xd0
>    [ 7665.841183]  [<ffffffff811af8c5>] vfs_read+0x145/0x170
>    [ 7665.841183]  [<ffffffff811b0348>] SyS_read+0x58/0xb0
>    [ 7665.841183]  [<ffffffff815fc819>] system_call_fastpath+0x16/0x1b
>    [ 7665.841183] lvmetad         S ffff88003fc14540     0  2429      1 0x00000080
>    [ 7665.841183]  ffff88003cf51b90 0000000000000086 ffff88003cf51fd8 0000000000014540
>    [ 7665.841183]  ffff88003cf51fd8 0000000000014540 ffff88003702cfa0 ffff88003702cfa0
>    [ 7665.841183]  ffff88003702cfa0 ffff88003d62c720 ffff88003d62c3c0 7fffffffffffffff
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff815ef7c9>] schedule_timeout+0x209/0x2d0
>    [ 7665.841183]  [<ffffffff814cb221>] ? __alloc_skb+0xa1/0x2d0
>    [ 7665.841183]  [<ffffffff8157de4b>] unix_stream_recvmsg+0x31b/0x8d0
>    [ 7665.841183]  [<ffffffff81090a7f>] ? __wake_up_sync_key+0x4f/0x60
>    [ 7665.841183]  [<ffffffff81086ab0>] ? wake_up_bit+0x30/0x30
>    [ 7665.841183]  [<ffffffff814c1366>] sock_aio_read.part.7+0x146/0x160
>    [ 7665.841183]  [<ffffffff81176971>] ? page_add_new_anon_rmap+0x91/0x130
>    [ 7665.841183]  [<ffffffff814c13a1>] sock_aio_read+0x21/0x30
>    [ 7665.841183]  [<ffffffff811af13d>] do_sync_read+0x8d/0xd0
>    [ 7665.841183]  [<ffffffff811af8c5>] vfs_read+0x145/0x170
>    [ 7665.841183]  [<ffffffff811b0348>] SyS_read+0x58/0xb0
>    [ 7665.841183]  [<ffffffff815fc819>] system_call_fastpath+0x16/0x1b
>    [ 7665.841183] lvmetad         S ffff88003fc14540     0  2657      1 0x00000080
>    [ 7665.841183]  ffff88003cd85b90 0000000000000086 ffff88003cd85fd8 0000000000014540
>    [ 7665.841183]  ffff88003cd85fd8 0000000000014540 ffff88003727e660 ffff88003727e660
>    [ 7665.841183]  ffff88003727e660 ffff88003cf15da0 ffff88003cf15a40 7fffffffffffffff
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff815ef7c9>] schedule_timeout+0x209/0x2d0
>    [ 7665.841183]  [<ffffffff814cb221>] ? __alloc_skb+0xa1/0x2d0
>    [ 7665.841183]  [<ffffffff8157de4b>] unix_stream_recvmsg+0x31b/0x8d0
>    [ 7665.841183]  [<ffffffff81090a7f>] ? __wake_up_sync_key+0x4f/0x60
>    [ 7665.841183]  [<ffffffff81086ab0>] ? wake_up_bit+0x30/0x30
>    [ 7665.841183]  [<ffffffff814c1366>] sock_aio_read.part.7+0x146/0x160
>    [ 7665.841183]  [<ffffffff814c13a1>] sock_aio_read+0x21/0x30
>    [ 7665.841183]  [<ffffffff811af13d>] do_sync_read+0x8d/0xd0
>    [ 7665.841183]  [<ffffffff811af8c5>] vfs_read+0x145/0x170
>    [ 7665.841183]  [<ffffffff811b0348>] SyS_read+0x58/0xb0
>    [ 7665.841183]  [<ffffffff815fc819>] system_call_fastpath+0x16/0x1b
>    [ 7665.841183] lvmetad         S ffff88003fc14540     0  2847      1 0x00000080
>    [ 7665.841183]  ffff88003cd71b90 0000000000000086 ffff88003cd71fd8 0000000000014540
>    [ 7665.841183]  ffff88003cd71fd8 0000000000014540 ffff880037272d80 ffff880037272d80
>    [ 7665.841183]  ffff880037272d80 ffff880036fe1260 ffff880036fe0f00 7fffffffffffffff
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff815ef7c9>] schedule_timeout+0x209/0x2d0
>    [ 7665.841183]  [<ffffffff81097712>] ? default_wake_function+0x12/0x20
>    [ 7665.841183]  [<ffffffff81086adb>] ? autoremove_wake_function+0x2b/0x40
>    [ 7665.841183]  [<ffffffff8157de4b>] unix_stream_recvmsg+0x31b/0x8d0
>    [ 7665.841183]  [<ffffffff81090a7f>] ? __wake_up_sync_key+0x4f/0x60
>    [ 7665.841183]  [<ffffffff81086ab0>] ? wake_up_bit+0x30/0x30
>    [ 7665.841183]  [<ffffffff814c1366>] sock_aio_read.part.7+0x146/0x160
>    [ 7665.841183]  [<ffffffff81176971>] ? page_add_new_anon_rmap+0x91/0x130
>    [ 7665.841183]  [<ffffffff814c13a1>] sock_aio_read+0x21/0x30
>    [ 7665.841183]  [<ffffffff811af13d>] do_sync_read+0x8d/0xd0
>    [ 7665.841183]  [<ffffffff811af8c5>] vfs_read+0x145/0x170
>    [ 7665.841183]  [<ffffffff811b0348>] SyS_read+0x58/0xb0
>    [ 7665.841183]  [<ffffffff815fc819>] system_call_fastpath+0x16/0x1b
>    [ 7665.841183] lvmetad         S ffff88003fc14540     0  2974      1 0x00000080
>    [ 7665.841183]  ffff88003721fb90 0000000000000086 ffff88003721ffd8 0000000000014540
>    [ 7665.841183]  ffff88003721ffd8 0000000000014540 ffff8800372a4440 ffff8800372a4440
>    [ 7665.841183]  ffff8800372a4440 ffff88003692fda0 ffff88003692fa40 7fffffffffffffff
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff815ef7c9>] schedule_timeout+0x209/0x2d0
>    [ 7665.841183]  [<ffffffff814cb221>] ? __alloc_skb+0xa1/0x2d0
>    [ 7665.841183]  [<ffffffff8157de4b>] unix_stream_recvmsg+0x31b/0x8d0
>    [ 7665.841183]  [<ffffffff81090a7f>] ? __wake_up_sync_key+0x4f/0x60
>    [ 7665.841183]  [<ffffffff81086ab0>] ? wake_up_bit+0x30/0x30
>    [ 7665.841183]  [<ffffffff814c1366>] sock_aio_read.part.7+0x146/0x160
>    [ 7665.841183]  [<ffffffff814c13a1>] sock_aio_read+0x21/0x30
>    [ 7665.841183]  [<ffffffff811af13d>] do_sync_read+0x8d/0xd0
>    [ 7665.841183]  [<ffffffff811af8c5>] vfs_read+0x145/0x170
>    [ 7665.841183]  [<ffffffff811b0348>] SyS_read+0x58/0xb0
>    [ 7665.841183]  [<ffffffff815fc819>] system_call_fastpath+0x16/0x1b
>    [ 7665.841183] lvmetad         S ffff88003fc14540     0  3079      1 0x00000080
>    [ 7665.841183]  ffff8800371adb90 0000000000000086 ffff8800371adfd8 0000000000014540
>    [ 7665.841183]  ffff8800371adfd8 0000000000014540 ffff88003bbb71c0 ffff88003bbb71c0
>    [ 7665.841183]  ffff88003bbb71c0 ffff880037197da0 ffff880037197a40 7fffffffffffffff
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff815ef7c9>] schedule_timeout+0x209/0x2d0
>    [ 7665.841183]  [<ffffffff814cb221>] ? __alloc_skb+0xa1/0x2d0
>    [ 7665.841183]  [<ffffffff8157de4b>] unix_stream_recvmsg+0x31b/0x8d0
>    [ 7665.841183]  [<ffffffff81086ab0>] ? wake_up_bit+0x30/0x30
>    [ 7665.841183]  [<ffffffff814c1366>] sock_aio_read.part.7+0x146/0x160
>    [ 7665.841183]  [<ffffffff814c13a1>] sock_aio_read+0x21/0x30
>    [ 7665.841183]  [<ffffffff811af13d>] do_sync_read+0x8d/0xd0
>    [ 7665.841183]  [<ffffffff811af8c5>] vfs_read+0x145/0x170
>    [ 7665.841183]  [<ffffffff811b0348>] SyS_read+0x58/0xb0
>    [ 7665.841183]  [<ffffffff815fc819>] system_call_fastpath+0x16/0x1b
>    [ 7665.841183] systemd-udevd   S ffff88003fc14540     0   493      1 0x00000000
>    [ 7665.841183]  ffff88003c7a9db8 0000000000000082 ffff88003c7a9fd8 0000000000014540
>    [ 7665.841183]  ffff88003c7a9fd8 0000000000014540 ffff880037270000 0000000000000000
>    [ 7665.841183]  0000000000000000 ffff880037200d20 ffff880037270000 0000000000000000
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff815f0c2d>] schedule_hrtimeout_range_clock+0x14d/0x170
>    [ 7665.841183]  [<ffffffff811f7f89>] ? ep_scan_ready_list.isra.9+0x1b9/0x1f0
>    [ 7665.841183]  [<ffffffff815f0c63>] schedule_hrtimeout_range+0x13/0x20
>    [ 7665.841183]  [<ffffffff811f8226>] ep_poll+0x246/0x370
>    [ 7665.841183]  [<ffffffff81097700>] ? wake_up_state+0x20/0x20
>    [ 7665.841183]  [<ffffffff811f932d>] SyS_epoll_wait+0xed/0x120
>    [ 7665.841183]  [<ffffffff815fc819>] system_call_fastpath+0x16/0x1b
>    [ 7665.841183] dmeventd        S ffff88003fc14540     0   508      1 0x00000000
>    [ 7665.841183]  ffff8800371418e8 0000000000000086 ffff880037141fd8 0000000000014540
>    [ 7665.841183]  ffff880037141fd8 0000000000014540 ffff880037274440 ffff880037141ac8
>    [ 7665.841183]  00000000000f423e 0000000000000000 0000000000000005 0000000000000005
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff815f0c0c>] schedule_hrtimeout_range_clock+0x12c/0x170
>    [ 7665.841183]  [<ffffffff81089750>] ? hrtimer_get_res+0x50/0x50
>    [ 7665.841183]  [<ffffffff815f0b8c>] ? schedule_hrtimeout_range_clock+0xac/0x170
>    [ 7665.841183]  [<ffffffff815f0c63>] schedule_hrtimeout_range+0x13/0x20
>    [ 7665.841183]  [<ffffffff811c3a90>] poll_schedule_timeout+0x60/0xc0
>    [ 7665.841183]  [<ffffffff811c4411>] do_select+0x6d1/0x7c0
>    [ 7665.841183]  [<ffffffff81094f8d>] ? ttwu_do_activate.constprop.85+0x5d/0x70
>    [ 7665.841183]  [<ffffffff811c39a0>] ? poll_select_copy_remaining+0x150/0x150
>    [ 7665.841183]  [<ffffffff8109fc7c>] ? update_curr+0xcc/0x150
>    [ 7665.841183]  [<ffffffff8109b808>] ? __enqueue_entity+0x78/0x80
>    [ 7665.841183]  [<ffffffff810a1c37>] ? enqueue_entity+0x237/0x890
>    [ 7665.841183]  [<ffffffff8104606f>] ? kvm_clock_read+0x1f/0x30
>    [ 7665.841183]  [<ffffffff810a11cd>] ? check_preempt_wakeup+0x11d/0x250
>    [ 7665.841183]  [<ffffffff81094dd5>] ? check_preempt_curr+0x85/0xa0
>    [ 7665.841183]  [<ffffffff81094e09>] ? ttwu_do_wakeup+0x19/0xc0
>    [ 7665.841183]  [<ffffffff81094f8d>] ? ttwu_do_activate.constprop.85+0x5d/0x70
>    [ 7665.841183]  [<ffffffff810975d6>] ? try_to_wake_up+0x1b6/0x280
>    [ 7665.841183]  [<ffffffff81097712>] ? default_wake_function+0x12/0x20
>    [ 7665.841183]  [<ffffffff811c3a13>] ? pollwake+0x73/0x90
>    [ 7665.841183]  [<ffffffff81097700>] ? wake_up_state+0x20/0x20
>    [ 7665.841183]  [<ffffffff811c46db>] core_sys_select+0x1db/0x300
>    [ 7665.841183]  [<ffffffff811af20d>] ? do_sync_write+0x8d/0xd0
>    [ 7665.841183]  [<ffffffff811f1ce1>] ? fsnotify+0x251/0x350
>    [ 7665.841183]  [<ffffffff8104609f>] ? kvm_clock_get_cycles+0x1f/0x30
>    [ 7665.841183]  [<ffffffff810b68f8>] ? ktime_get_ts+0x48/0xe0
>    [ 7665.841183]  [<ffffffff8104609f>] ? kvm_clock_get_cycles+0x1f/0x30
>    [ 7665.841183]  [<ffffffff810b68f8>] ? ktime_get_ts+0x48/0xe0
>    [ 7665.841183]  [<ffffffff811c48ba>] SyS_select+0xba/0x110
>    [ 7665.841183]  [<ffffffff815fc819>] system_call_fastpath+0x16/0x1b
>    [ 7665.841183] dmeventd        S ffff88003fc14540     0  2943      1 0x00000080
>    [ 7665.841183]  ffff88003cd5fe90 0000000000000086 ffff88003cd5ffd8 0000000000014540
>    [ 7665.841183]  ffff88003cd5ffd8 0000000000014540 ffff88003c728000 ffff88003690b480
>    [ 7665.841183]  ffff88003c728000 ffff8800370db800 ffff88003690b4c8 ffff88003690b780
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff81200676>] flock_lock_file_wait+0x176/0x350
>    [ 7665.841183]  [<ffffffff81086ab0>] ? wake_up_bit+0x30/0x30
>    [ 7665.841183]  [<ffffffff81200cab>] SyS_flock+0x1bb/0x1e0
>    [ 7665.841183]  [<ffffffff815fc819>] system_call_fastpath+0x16/0x1b
>    [ 7665.841183] dmeventd        S ffff88003fc14540     0  3056      1 0x00000080
>    [ 7665.841183]  ffff88003c49dcd0 0000000000000086 ffff88003c49dfd8 0000000000014540
>    [ 7665.841183]  ffff88003c49dfd8 0000000000014540 ffff880037270b60 ffff880037270b60
>    [ 7665.841183]  0000000000000000 ffff880037270b60 ffff88003c49dde0 ffffc900001c5600
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff810bfedd>] futex_wait_queue_me+0xdd/0x140
>    [ 7665.841183]  [<ffffffff810c00b9>] futex_wait+0x179/0x280
>    [ 7665.841183]  [<ffffffff810c28be>] do_futex+0xfe/0x5e0
>    [ 7665.841183]  [<ffffffffa0009793>] ? dm_ctl_ioctl+0x13/0x20 [dm_mod]
>    [ 7665.841183]  [<ffffffff81070f8b>] ? recalc_sigpending+0x1b/0x50
>    [ 7665.841183]  [<ffffffff810c2e20>] SyS_futex+0x80/0x180
>    [ 7665.841183]  [<ffffffff815fc819>] system_call_fastpath+0x16/0x1b
>    [ 7665.841183] vballoon        S ffff88003fc14540     0   522      2 0x00000000
>    [ 7665.841183]  ffff880036e15e20 0000000000000046 ffff880036e15fd8 0000000000014540
>    [ 7665.841183]  ffff880036e15fd8 0000000000014540 ffff880037282d80 ffff880036fb7800
>    [ 7665.841183]  0000000000000000 ffff880036e15e64 ffff880036fb7820 ffff880037282d80
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffffa017a8fa>] balloon+0x20a/0x2d0 [virtio_balloon]
>    [ 7665.841183]  [<ffffffff81086ab0>] ? wake_up_bit+0x30/0x30
>    [ 7665.841183]  [<ffffffffa017a6f0>] ? update_balloon_stats+0x110/0x110 [virtio_balloon]
>    [ 7665.841183]  [<ffffffff81085aef>] kthread+0xcf/0xe0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183]  [<ffffffff815fc76c>] ret_from_fork+0x7c/0xb0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183] kdmflush        S ffff88003fc14540     0   542      2 0x00000000
>    [ 7665.841183]  ffff88003bca7e20 0000000000000046 ffff88003bca7fd8 0000000000014540
>    [ 7665.841183]  ffff88003bca7fd8 0000000000014540 ffff8800371ead80 ffff880036904600
>    [ 7665.841183]  ffff8800371ead80 ffff880037581880 0000000000000000 ffff880036904630
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff8107eb6a>] rescuer_thread+0x28a/0x400
>    [ 7665.841183]  [<ffffffff8107e8e0>] ? manage_workers.isra.25+0x2e0/0x2e0
>    [ 7665.841183]  [<ffffffff81085aef>] kthread+0xcf/0xe0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183]  [<ffffffff815fc76c>] ret_from_fork+0x7c/0xb0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183] bioset          S ffff88003fc14540     0   543      2 0x00000000
>    [ 7665.841183]  ffff88003bcabe20 0000000000000046 ffff88003bcabfd8 0000000000014540
>    [ 7665.841183]  ffff88003bcabfd8 0000000000014540 ffff8800371ecfa0 ffff88003d611c80
>    [ 7665.841183]  ffff8800371ecfa0 ffff8800369ffc80 0000000000000000 ffff88003d611cb0
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff8107eb6a>] rescuer_thread+0x28a/0x400
>    [ 7665.841183]  [<ffffffff8107e8e0>] ? manage_workers.isra.25+0x2e0/0x2e0
>    [ 7665.841183]  [<ffffffff81085aef>] kthread+0xcf/0xe0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183]  [<ffffffff815fc76c>] ret_from_fork+0x7c/0xb0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183] jbd2/vda1-8     S ffff88003fc14540     0   559      2 0x00000000
>    [ 7665.841183]  ffff880037319e30 0000000000000046 ffff880037319fd8 0000000000014540
>    [ 7665.841183]  ffff880037319fd8 0000000000014540 ffff880037284fa0 ffff88003d520828
>    [ 7665.841183]  ffff88003d520bc8 ffff88003d5208a8 ffff880037319e80 ffff88003d520800
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffffa019e8d3>] kjournald2+0x203/0x270 [jbd2]
>    [ 7665.841183]  [<ffffffff81086ab0>] ? wake_up_bit+0x30/0x30
>    [ 7665.841183]  [<ffffffffa019e6d0>] ? commit_timeout+0x10/0x10 [jbd2]
>    [ 7665.841183]  [<ffffffff81085aef>] kthread+0xcf/0xe0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183]  [<ffffffff815fc76c>] ret_from_fork+0x7c/0xb0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183] ext4-dio-unwrit S ffff88003fc14540     0   560      2 0x00000000
>    [ 7665.841183]  ffff88003c307e20 0000000000000046 ffff88003c307fd8 0000000000014540
>    [ 7665.841183]  ffff88003c307fd8 0000000000014540 ffff88003bbb5b00 ffff88003d547f80
>    [ 7665.841183]  ffff88003bbb5b00 ffff880036f3be80 0000000000000000 ffff88003d547fb0
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff8107eb6a>] rescuer_thread+0x28a/0x400
>    [ 7665.841183]  [<ffffffff8107e8e0>] ? manage_workers.isra.25+0x2e0/0x2e0
>    [ 7665.841183]  [<ffffffff81085aef>] kthread+0xcf/0xe0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183]  [<ffffffff815fc76c>] ret_from_fork+0x7c/0xb0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183] auditd          S ffff88003fc14540     0   563      1 0x00000000
>    [ 7665.841183]  ffff88003729bdb8 0000000000000086 ffff88003729bfd8 0000000000014540
>    [ 7665.841183]  ffff88003729bfd8 0000000000014540 ffff88003702f1c0 ffff88003729bea8
>    [ 7665.841183]  00000000038f9b17 0000000000000000 ffff88003702f1c0 ffff88003729bea8
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff815f0c0c>] schedule_hrtimeout_range_clock+0x12c/0x170
>    [ 7665.841183]  [<ffffffff81089750>] ? hrtimer_get_res+0x50/0x50
>    [ 7665.841183]  [<ffffffff815f0b8c>] ? schedule_hrtimeout_range_clock+0xac/0x170
>    [ 7665.841183]  [<ffffffff815f0c63>] schedule_hrtimeout_range+0x13/0x20
>    [ 7665.841183]  [<ffffffff811f8226>] ep_poll+0x246/0x370
>    [ 7665.841183]  [<ffffffff81097700>] ? wake_up_state+0x20/0x20
>    [ 7665.841183]  [<ffffffff811f932d>] SyS_epoll_wait+0xed/0x120
>    [ 7665.841183]  [<ffffffff815fc819>] system_call_fastpath+0x16/0x1b
>    [ 7665.841183] auditd          S ffff88003fc14540     0   575      1 0x00000000
>    [ 7665.841183]  ffff88003cea5cd0 0000000000000086 ffff88003cea5fd8 0000000000014540
>    [ 7665.841183]  ffff88003cea5fd8 0000000000014540 ffff8800371e8000 ffff8800371e8000
>    [ 7665.841183]  0000000000000000 ffff8800371e8000 ffff88003cea5de0 ffffc900001c4200
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff810bfedd>] futex_wait_queue_me+0xdd/0x140
>    [ 7665.841183]  [<ffffffff810c00b9>] futex_wait+0x179/0x280
>    [ 7665.841183]  [<ffffffffa01b3189>] ? ext4_file_write+0xa9/0x450 [ext4]
>    [ 7665.841183]  [<ffffffff8109b776>] ? __dequeue_entity+0x26/0x40
>    [ 7665.841183]  [<ffffffff81011619>] ? __switch_to+0x179/0x490
>    [ 7665.841183]  [<ffffffff810bfc08>] ? get_futex_key+0x1c8/0x2a0
>    [ 7665.841183]  [<ffffffff810c28be>] do_futex+0xfe/0x5e0
>    [ 7665.841183]  [<ffffffff810c2e20>] SyS_futex+0x80/0x180
>    [ 7665.841183]  [<ffffffff815fc819>] system_call_fastpath+0x16/0x1b
>    [ 7665.841183] tuned           S ffff88003fc14540     0   596      1 0x00000080
>    [ 7665.841183]  ffff8800372cb8e8 0000000000000086 ffff8800372cbfd8 0000000000014540
>    [ 7665.841183]  ffff8800372cbfd8 0000000000014540 ffff8800371ee660 ffff8800372cbac8
>    [ 7665.841183]  0000000005f5e100 0000000000000000 0000000000000000 0000000000000000
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff815f0c0c>] schedule_hrtimeout_range_clock+0x12c/0x170
>    [ 7665.841183]  [<ffffffff81089750>] ? hrtimer_get_res+0x50/0x50
>    [ 7665.841183]  [<ffffffff815f0b8c>] ? schedule_hrtimeout_range_clock+0xac/0x170
>    [ 7665.841183]  [<ffffffff815f0c63>] schedule_hrtimeout_range+0x13/0x20
>    [ 7665.841183]  [<ffffffff811c3a90>] poll_schedule_timeout+0x60/0xc0
>    [ 7665.841183]  [<ffffffff811c4411>] do_select+0x6d1/0x7c0
>    [ 7665.841183]  [<ffffffff812d028d>] ? list_del+0xd/0x30
>    [ 7665.841183]  [<ffffffff811483f9>] ? __rmqueue+0x89/0x440
>    [ 7665.841183]  [<ffffffff8114a683>] ? get_page_from_freelist+0x533/0x960
>    [ 7665.841183]  [<ffffffff8109fc7c>] ? update_curr+0xcc/0x150
>    [ 7665.841183]  [<ffffffff8109ca2e>] ? account_entity_dequeue+0xae/0xd0
>    [ 7665.841183]  [<ffffffff81141983>] ? unlock_page+0x23/0x30
>    [ 7665.841183]  [<ffffffff8116a2bb>] ? do_wp_page+0x3bb/0x7d0
>    [ 7665.841183]  [<ffffffff8109b776>] ? __dequeue_entity+0x26/0x40
>    [ 7665.841183]  [<ffffffff8116c724>] ? handle_mm_fault+0x594/0xd90
>    [ 7665.841183]  [<ffffffff812be042>] ? radix_tree_lookup_slot+0x22/0x50
>    [ 7665.841183]  [<ffffffff81143d25>] ? filemap_fault+0x225/0x430
>    [ 7665.841183]  [<ffffffff81141983>] ? unlock_page+0x23/0x30
>    [ 7665.841183]  [<ffffffff8116a2bb>] ? do_wp_page+0x3bb/0x7d0
>    [ 7665.841183]  [<ffffffff811c46db>] core_sys_select+0x1db/0x300
>    [ 7665.841183]  [<ffffffff815f7c8a>] ? do_page_fault+0x1a/0x70
>    [ 7665.841183]  [<ffffffff815f7934>] ? __do_page_fault+0x204/0x540
>    [ 7665.841183]  [<ffffffff8104609f>] ? kvm_clock_get_cycles+0x1f/0x30
>    [ 7665.841183]  [<ffffffff810b68f8>] ? ktime_get_ts+0x48/0xe0
>    [ 7665.841183]  [<ffffffff8104609f>] ? kvm_clock_get_cycles+0x1f/0x30
>    [ 7665.841183]  [<ffffffff810b68f8>] ? ktime_get_ts+0x48/0xe0
>    [ 7665.841183]  [<ffffffff811c48ba>] SyS_select+0xba/0x110
>    [ 7665.841183]  [<ffffffff815fc819>] system_call_fastpath+0x16/0x1b
>    [ 7665.841183] gmain           S ffff88003fc14540     0   810      1 0x00000080
>    [ 7665.841183]  ffff88003d3ffa30 0000000000000086 ffff88003d3fffd8 0000000000014540
>    [ 7665.841183]  ffff88003d3fffd8 0000000000014540 ffff88003d268000 0000000000000000
>    [ 7665.841183]  ffff88003d268000 00000000fffffffc 0000000000000000 ffff88003d3ffba4
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff815f0c2d>] schedule_hrtimeout_range_clock+0x14d/0x170
>    [ 7665.841183]  [<ffffffff8108674c>] ? add_wait_queue+0x3c/0x50
>    [ 7665.841183]  [<ffffffff815f0c63>] schedule_hrtimeout_range+0x13/0x20
>    [ 7665.841183]  [<ffffffff811c3a90>] poll_schedule_timeout+0x60/0xc0
>    [ 7665.841183]  [<ffffffff811c501d>] do_sys_poll+0x4cd/0x580
>    [ 7665.841183]  [<ffffffff8114ac24>] ? __alloc_pages_nodemask+0x174/0xb10
>    [ 7665.841183]  [<ffffffff810a1c37>] ? enqueue_entity+0x237/0x890
>    [ 7665.841183]  [<ffffffff8104606f>] ? kvm_clock_read+0x1f/0x30
>    [ 7665.841183]  [<ffffffff8109fc7c>] ? update_curr+0xcc/0x150
>    [ 7665.841183]  [<ffffffff812be042>] ? radix_tree_lookup_slot+0x22/0x50
>    [ 7665.841183]  [<ffffffff811412ae>] ? __find_get_page+0x1e/0xa0
>    [ 7665.841183]  [<ffffffff811c39a0>] ? poll_select_copy_remaining+0x150/0x150
>    [ 7665.841183]  [<ffffffff811685c9>] ? __do_fault+0x419/0x520
>    [ 7665.841183]  [<ffffffff8116c575>] ? handle_mm_fault+0x3e5/0xd90
>    [ 7665.841183]  [<ffffffff81097712>] ? default_wake_function+0x12/0x20
>    [ 7665.841183]  [<ffffffff81086adb>] ? autoremove_wake_function+0x2b/0x40
>    [ 7665.841183]  [<ffffffff815f7934>] ? __do_page_fault+0x204/0x540
>    [ 7665.841183]  [<ffffffff811fb4f7>] ? eventfd_ctx_read+0x67/0x260
>    [ 7665.841183]  [<ffffffff811c51d4>] SyS_poll+0x74/0x110
>    [ 7665.841183]  [<ffffffff810e6e46>] ? __audit_syscall_exit+0x1f6/0x2a0
>    [ 7665.841183]  [<ffffffff815fc819>] system_call_fastpath+0x16/0x1b
>    [ 7665.841183] tuned           S ffff88003fc14540     0   811      1 0x00000080
>    [ 7665.841183]  ffff88003c4f3a30 0000000000000086 ffff88003c4f3fd8 0000000000014540
>    [ 7665.841183]  ffff88003c4f3fd8 0000000000014540 ffff88003d26cfa0 0000000000000000
>    [ 7665.841183]  ffff88003d26cfa0 00000000fffffffc 0000000000000000 ffff88003c4f3bac
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff815f0c2d>] schedule_hrtimeout_range_clock+0x14d/0x170
>    [ 7665.841183]  [<ffffffff814cb6be>] ? skb_free_head+0x1e/0x70
>    [ 7665.841183]  [<ffffffff8108674c>] ? add_wait_queue+0x3c/0x50
>    [ 7665.841183]  [<ffffffff811c37af>] ? __pollwait+0x7f/0xf0
>    [ 7665.841183]  [<ffffffff8108674c>] ? add_wait_queue+0x3c/0x50
>    [ 7665.841183]  [<ffffffff815f0c63>] schedule_hrtimeout_range+0x13/0x20
>    [ 7665.841183]  [<ffffffff811c3a90>] poll_schedule_timeout+0x60/0xc0
>    [ 7665.841183]  [<ffffffff811c501d>] do_sys_poll+0x4cd/0x580
>    [ 7665.841183]  [<ffffffff8114ac24>] ? __alloc_pages_nodemask+0x174/0xb10
>    [ 7665.841183]  [<ffffffff814c278f>] ? sock_recvmsg+0xbf/0x100
>    [ 7665.841183]  [<ffffffff812be042>] ? radix_tree_lookup_slot+0x22/0x50
>    [ 7665.841183]  [<ffffffff811412ae>] ? __find_get_page+0x1e/0xa0
>    [ 7665.841183]  [<ffffffff811c39a0>] ? poll_select_copy_remaining+0x150/0x150
>    [ 7665.841183]  [<ffffffff811c39a0>] ? poll_select_copy_remaining+0x150/0x150
>    [ 7665.841183]  [<ffffffff8116c575>] ? handle_mm_fault+0x3e5/0xd90
>    [ 7665.841183]  [<ffffffff815f7934>] ? __do_page_fault+0x204/0x540
>    [ 7665.841183]  [<ffffffff811fb4f7>] ? eventfd_ctx_read+0x67/0x260
>    [ 7665.841183]  [<ffffffff811c51d4>] SyS_poll+0x74/0x110
>    [ 7665.841183]  [<ffffffff810e6e46>] ? __audit_syscall_exit+0x1f6/0x2a0
>    [ 7665.841183]  [<ffffffff815fc819>] system_call_fastpath+0x16/0x1b
>    [ 7665.841183] tuned           S ffff88003fc14540     0   812      1 0x00000080
>    [ 7665.841183]  ffff88003c4f58e8 0000000000000086 ffff88003c4f5fd8 0000000000014540
>    [ 7665.841183]  ffff88003c4f5fd8 0000000000014540 ffff88003d26ad80 ffff88003c4f5ac8
>    [ 7665.841183]  00000000000f4239 0000000000000000 0000000000000000 0000000000000000
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff815f0c0c>] schedule_hrtimeout_range_clock+0x12c/0x170
>    [ 7665.841183]  [<ffffffff81089750>] ? hrtimer_get_res+0x50/0x50
>    [ 7665.841183]  [<ffffffff815f0b8c>] ? schedule_hrtimeout_range_clock+0xac/0x170
>    [ 7665.841183]  [<ffffffff815f0c63>] schedule_hrtimeout_range+0x13/0x20
>    [ 7665.841183]  [<ffffffff811c3a90>] poll_schedule_timeout+0x60/0xc0
>    [ 7665.841183]  [<ffffffff811c4411>] do_select+0x6d1/0x7c0
>    [ 7665.841183]  [<ffffffff81090a24>] ? __wake_up+0x44/0x50
>    [ 7665.841183]  [<ffffffff812516be>] ? security_inode_alloc+0x1e/0x20
>    [ 7665.841183]  [<ffffffff8114a683>] ? get_page_from_freelist+0x533/0x960
>    [ 7665.841183]  [<ffffffff811c74bd>] ? __d_instantiate_unique+0xdd/0xf0
>    [ 7665.841183]  [<ffffffff8125119b>] ? security_d_instantiate+0x1b/0x30
>    [ 7665.841183]  [<ffffffff811c9db0>] ? unlock_new_inode+0x50/0x70
>    [ 7665.841183]  [<ffffffff811f1ce1>] ? fsnotify+0x251/0x350
>    [ 7665.841183]  [<ffffffff8115fd49>] ? zone_statistics+0x89/0xa0
>    [ 7665.841183]  [<ffffffff811a3f9d>] ? __mem_cgroup_uncharge_common+0xcd/0x2f0
>    [ 7665.841183]  [<ffffffff8115f9de>] ? __dec_zone_page_state+0x2e/0x30
>    [ 7665.841183]  [<ffffffff811c46db>] core_sys_select+0x1db/0x300
>    [ 7665.841183]  [<ffffffff8104609f>] ? kvm_clock_get_cycles+0x1f/0x30
>    [ 7665.841183]  [<ffffffff810b68f8>] ? ktime_get_ts+0x48/0xe0
>    [ 7665.841183]  [<ffffffff8104609f>] ? kvm_clock_get_cycles+0x1f/0x30
>    [ 7665.841183]  [<ffffffff810b68f8>] ? ktime_get_ts+0x48/0xe0
>    [ 7665.841183]  [<ffffffff811c48ba>] SyS_select+0xba/0x110
>    [ 7665.841183]  [<ffffffff815fc819>] system_call_fastpath+0x16/0x1b
>    [ 7665.841183] tuned           S ffff88003fc14540     0   813      1 0x00000080
>    [ 7665.841183]  ffff88003c4f7db8 0000000000000086 ffff88003c4f7fd8 0000000000014540
>    [ 7665.841183]  ffff88003c4f7fd8 0000000000014540 ffff88003d26c440 0000000000000000
>    [ 7665.841183]  0000000000000000 ffff8800369128a0 ffff88003d26c440 0000000000000000
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff815f0c2d>] schedule_hrtimeout_range_clock+0x14d/0x170
>    [ 7665.841183]  [<ffffffff811f7f89>] ? ep_scan_ready_list.isra.9+0x1b9/0x1f0
>    [ 7665.841183]  [<ffffffff815f0c63>] schedule_hrtimeout_range+0x13/0x20
>    [ 7665.841183]  [<ffffffff811f8226>] ep_poll+0x246/0x370
>    [ 7665.841183]  [<ffffffff811b1573>] ? __fput+0x183/0x270
>    [ 7665.841183]  [<ffffffff81097700>] ? wake_up_state+0x20/0x20
>    [ 7665.841183]  [<ffffffff811f932d>] SyS_epoll_wait+0xed/0x120
>    [ 7665.841183]  [<ffffffff815fc819>] system_call_fastpath+0x16/0x1b
>    [ 7665.841183] avahi-daemon    S ffff88003fc14540     0   597      1 0x00000080
>    [ 7665.841183]  ffff88003ce1fa30 0000000000000086 ffff88003ce1ffd8 0000000000014540
>    [ 7665.841183]  ffff88003ce1ffd8 0000000000014540 ffff8800371eb8e0 0000000000000000
>    [ 7665.841183]  ffff8800371eb8e0 00000000fffffffc 0000000000000000 ffff88003ce1fbdc
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff815f0c2d>] schedule_hrtimeout_range_clock+0x14d/0x170
>    [ 7665.841183]  [<ffffffff8108674c>] ? add_wait_queue+0x3c/0x50
>    [ 7665.841183]  [<ffffffff8108674c>] ? add_wait_queue+0x3c/0x50
>    [ 7665.841183]  [<ffffffff8108674c>] ? add_wait_queue+0x3c/0x50
>    [ 7665.841183]  [<ffffffff815f0c63>] schedule_hrtimeout_range+0x13/0x20
>    [ 7665.841183]  [<ffffffff811c3a90>] poll_schedule_timeout+0x60/0xc0
>    [ 7665.841183]  [<ffffffff811c501d>] do_sys_poll+0x4cd/0x580
>    [ 7665.841183]  [<ffffffff814c278f>] ? sock_recvmsg+0xbf/0x100
>    [ 7665.841183]  [<ffffffff810a1c37>] ? enqueue_entity+0x237/0x890
>    [ 7665.841183]  [<ffffffff8104606f>] ? kvm_clock_read+0x1f/0x30
>    [ 7665.841183]  [<ffffffff811c39a0>] ? poll_select_copy_remaining+0x150/0x150
>    [ 7665.841183]  [<ffffffff811c39a0>] ? poll_select_copy_remaining+0x150/0x150
>    [ 7665.841183]  [<ffffffff811c39a0>] ? poll_select_copy_remaining+0x150/0x150
>    [ 7665.841183]  [<ffffffff811c39a0>] ? poll_select_copy_remaining+0x150/0x150
>    [ 7665.841183]  [<ffffffff811c39a0>] ? poll_select_copy_remaining+0x150/0x150
>    [ 7665.841183]  [<ffffffff811c39a0>] ? poll_select_copy_remaining+0x150/0x150
>    [ 7665.841183]  [<ffffffff811c39a0>] ? poll_select_copy_remaining+0x150/0x150
>    [ 7665.841183]  [<ffffffff811c39a0>] ? poll_select_copy_remaining+0x150/0x150
>    [ 7665.841183]  [<ffffffff811c51d4>] SyS_poll+0x74/0x110
>    [ 7665.841183]  [<ffffffff810e6e46>] ? __audit_syscall_exit+0x1f6/0x2a0
>    [ 7665.841183]  [<ffffffff815fc819>] system_call_fastpath+0x16/0x1b
>    [ 7665.841183] NetworkManager  S ffff88003fc14540     0   599      1 0x00000080
>    [ 7665.841183]  ffff880037133a30 0000000000000086 ffff880037133fd8 0000000000014540
>    [ 7665.841183]  ffff880037133fd8 0000000000014540 ffff8800371ea220 ffff880037133b88
>    [ 7665.841183]  0000000005f5e100 0000000000000000 0000000000000000 ffff880037133bf4
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff815f0c0c>] schedule_hrtimeout_range_clock+0x12c/0x170
>    [ 7665.841183]  [<ffffffff81089750>] ? hrtimer_get_res+0x50/0x50
>    [ 7665.841183]  [<ffffffff815f0b8c>] ? schedule_hrtimeout_range_clock+0xac/0x170
>    [ 7665.841183]  [<ffffffff815f0c63>] schedule_hrtimeout_range+0x13/0x20
>    [ 7665.841183]  [<ffffffff811c3a90>] poll_schedule_timeout+0x60/0xc0
>    [ 7665.841183]  [<ffffffff811c501d>] do_sys_poll+0x4cd/0x580
>    [ 7665.841183]  [<ffffffff814c20c0>] ? sock_sendmsg+0xb0/0xf0
>    [ 7665.841183]  [<ffffffff814c278f>] ? sock_recvmsg+0xbf/0x100
>    [ 7665.841183]  [<ffffffff811c39a0>] ? poll_select_copy_remaining+0x150/0x150
>    [ 7665.841183]  [<ffffffff811c39a0>] ? poll_select_copy_remaining+0x150/0x150
>    [ 7665.841183]  [<ffffffff811c39a0>] ? poll_select_copy_remaining+0x150/0x150
>    [ 7665.841183]  [<ffffffff811c39a0>] ? poll_select_copy_remaining+0x150/0x150
>    [ 7665.841183]  [<ffffffff811c39a0>] ? poll_select_copy_remaining+0x150/0x150
>    [ 7665.841183]  [<ffffffff811c39a0>] ? poll_select_copy_remaining+0x150/0x150
>    [ 7665.841183]  [<ffffffff811c39a0>] ? poll_select_copy_remaining+0x150/0x150
>    [ 7665.841183]  [<ffffffff811c39a0>] ? poll_select_copy_remaining+0x150/0x150
>    [ 7665.841183]  [<ffffffff811c39a0>] ? poll_select_copy_remaining+0x150/0x150
>    [ 7665.841183]  [<ffffffff811c51d4>] SyS_poll+0x74/0x110
>    [ 7665.841183]  [<ffffffff815fc819>] system_call_fastpath+0x16/0x1b
>    [ 7665.841183] NetworkManager  S ffff88003fc14540     0   633      1 0x00000080
>    [ 7665.841183]  ffff88003c04dd90 0000000000000086 ffff88003c04dfd8 0000000000014540
>    [ 7665.841183]  ffff88003c04dfd8 0000000000014540 ffff88003bc4ad80 ffff88003bc4ad80
>    [ 7665.841183]  7fffffffffffffff ffff88003c04ded0 ffff88003bc4ad80 0000000000000000
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff815ef7c9>] schedule_timeout+0x209/0x2d0
>    [ 7665.841183]  [<ffffffff810a0a7e>] ? dequeue_task_fair+0x41e/0x620
>    [ 7665.841183]  [<ffffffff81070f8b>] ? recalc_sigpending+0x1b/0x50
>    [ 7665.841183]  [<ffffffff815ef8ae>] schedule_timeout_interruptible+0x1e/0x20
>    [ 7665.841183]  [<ffffffff81074f72>] do_sigtimedwait+0x1c2/0x2a0
>    [ 7665.841183]  [<ffffffff810750d5>] SYSC_rt_sigtimedwait+0x85/0xf0
>    [ 7665.841183]  [<ffffffff815f18c9>] ? schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff81064207>] ? do_exit+0x6e7/0xa60
>    [ 7665.841183]  [<ffffffff810e6e46>] ? __audit_syscall_exit+0x1f6/0x2a0
>    [ 7665.841183]  [<ffffffff8107514e>] SyS_rt_sigtimedwait+0xe/0x10
>    [ 7665.841183]  [<ffffffff815fc819>] system_call_fastpath+0x16/0x1b
>    [ 7665.841183] gdbus           S ffff88003fc14540     0   636      1 0x00000080
>    [ 7665.841183]  ffff88003cd2da30 0000000000000086 ffff88003cd2dfd8 0000000000014540
>    [ 7665.841183]  ffff88003cd2dfd8 0000000000014540 ffff88003bc4c440 0000000000000000
>    [ 7665.841183]  ffff88003bc4c440 00000000fffffffc 0000000000000000 ffff88003cd2dbb4
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff815f0c2d>] schedule_hrtimeout_range_clock+0x14d/0x170
>    [ 7665.841183]  [<ffffffff8108674c>] ? add_wait_queue+0x3c/0x50
>    [ 7665.841183]  [<ffffffff8108674c>] ? add_wait_queue+0x3c/0x50
>    [ 7665.841183]  [<ffffffff815f0c63>] schedule_hrtimeout_range+0x13/0x20
>    [ 7665.841183]  [<ffffffff811c3a90>] poll_schedule_timeout+0x60/0xc0
>    [ 7665.841183]  [<ffffffff811c501d>] do_sys_poll+0x4cd/0x580
>    [ 7665.841183]  [<ffffffff814c278f>] ? sock_recvmsg+0xbf/0x100
>    [ 7665.841183]  [<ffffffff8109fc7c>] ? update_curr+0xcc/0x150
>    [ 7665.841183]  [<ffffffff8109b808>] ? __enqueue_entity+0x78/0x80
>    [ 7665.841183]  [<ffffffff811c39a0>] ? poll_select_copy_remaining+0x150/0x150
>    [ 7665.841183]  [<ffffffff811c39a0>] ? poll_select_copy_remaining+0x150/0x150
>    [ 7665.841183]  [<ffffffff811c39a0>] ? poll_select_copy_remaining+0x150/0x150
>    [ 7665.841183]  [<ffffffff810975d6>] ? try_to_wake_up+0x1b6/0x280
>    [ 7665.841183]  [<ffffffff811c83c5>] ? __d_alloc+0x25/0x180
>    [ 7665.841183]  [<ffffffff81097712>] ? default_wake_function+0x12/0x20
>    [ 7665.841183]  [<ffffffff811c3a13>] ? pollwake+0x73/0x90
>    [ 7665.841183]  [<ffffffff81097700>] ? wake_up_state+0x20/0x20
>    [ 7665.841183]  [<ffffffff81194e3a>] ? kmem_cache_alloc+0x1ba/0x1d0
>    [ 7665.841183]  [<ffffffff811b183c>] ? get_empty_filp+0x5c/0x190
>    [ 7665.841183]  [<ffffffff811fb4f7>] ? eventfd_ctx_read+0x67/0x260
>    [ 7665.841183]  [<ffffffff811c51d4>] SyS_poll+0x74/0x110
>    [ 7665.841183]  [<ffffffff810e6e46>] ? __audit_syscall_exit+0x1f6/0x2a0
>    [ 7665.841183]  [<ffffffff815fc819>] system_call_fastpath+0x16/0x1b
>    [ 7665.841183] gmain           S ffff88003fc14540     0   675      1 0x00000080
>    [ 7665.841183]  ffff88003cd87a30 0000000000000086 ffff88003cd87fd8 0000000000014540
>    [ 7665.841183]  ffff88003cd87fd8 0000000000014540 ffff88003d2696c0 0000000000000000
>    [ 7665.841183]  ffff88003d2696c0 00000000fffffffc 0000000000000000 ffff88003cd87ba4
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff815f0c2d>] schedule_hrtimeout_range_clock+0x14d/0x170
>    [ 7665.841183]  [<ffffffff8108674c>] ? add_wait_queue+0x3c/0x50
>    [ 7665.841183]  [<ffffffff815f0c63>] schedule_hrtimeout_range+0x13/0x20
>    [ 7665.841183]  [<ffffffff811c3a90>] poll_schedule_timeout+0x60/0xc0
>    [ 7665.841183]  [<ffffffff811c501d>] do_sys_poll+0x4cd/0x580
>    [ 7665.841183]  [<ffffffff8114ac24>] ? __alloc_pages_nodemask+0x174/0xb10
>    [ 7665.841183]  [<ffffffff811c39a0>] ? poll_select_copy_remaining+0x150/0x150
>    [ 7665.841183]  [<ffffffff811a4de2>] ? __mem_cgroup_commit_charge+0x152/0x3a0
>    [ 7665.841183]  [<ffffffff8114fc5e>] ? lru_cache_add+0xe/0x10
>    [ 7665.841183]  [<ffffffff81176971>] ? page_add_new_anon_rmap+0x91/0x130
>    [ 7665.841183]  [<ffffffff8116c918>] ? handle_mm_fault+0x788/0xd90
>    [ 7665.841183]  [<ffffffff815f7934>] ? __do_page_fault+0x204/0x540
>    [ 7665.841183]  [<ffffffff811fb4f7>] ? eventfd_ctx_read+0x67/0x260
>    [ 7665.841183]  [<ffffffff811c51d4>] SyS_poll+0x74/0x110
>    [ 7665.841183]  [<ffffffff810e6e46>] ? __audit_syscall_exit+0x1f6/0x2a0
>    [ 7665.841183]  [<ffffffff815fc819>] system_call_fastpath+0x16/0x1b
>    [ 7665.841183] rsyslogd        S ffff88003fc14540     0   601      1 0x00000080
>    [ 7665.841183]  ffff88003d2318e8 0000000000000082 ffff88003d231fd8 0000000000014540
>    [ 7665.841183]  ffff88003d231fd8 0000000000014540 ffff88003bbb6660 ffff88003d231ac8
>    [ 7665.841183]  0000000005f5e100 0000000000000000 0000000000000000 0000000000000000
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff815f0c0c>] schedule_hrtimeout_range_clock+0x12c/0x170
>    [ 7665.841183]  [<ffffffff81089750>] ? hrtimer_get_res+0x50/0x50
>    [ 7665.841183]  [<ffffffff815f0b8c>] ? schedule_hrtimeout_range_clock+0xac/0x170
>    [ 7665.841183]  [<ffffffff815f0c63>] schedule_hrtimeout_range+0x13/0x20
>    [ 7665.841183]  [<ffffffff811c3a90>] poll_schedule_timeout+0x60/0xc0
>    [ 7665.841183]  [<ffffffff811c4411>] do_select+0x6d1/0x7c0
>    [ 7665.841183]  [<ffffffff811f8443>] ? ep_poll_callback+0xf3/0x160
>    [ 7665.841183]  [<ffffffff81090a7f>] ? __wake_up_sync_key+0x4f/0x60
>    [ 7665.841183]  [<ffffffff814c494a>] ? sock_def_readable+0x3a/0x70
>    [ 7665.841183]  [<ffffffff8157f40b>] ? unix_dgram_sendmsg+0x5db/0x650
>    [ 7665.841183]  [<ffffffff814c20c0>] ? sock_sendmsg+0xb0/0xf0
>    [ 7665.841183]  [<ffffffff812be042>] ? radix_tree_lookup_slot+0x22/0x50
>    [ 7665.841183]  [<ffffffff811412ae>] ? __find_get_page+0x1e/0xa0
>    [ 7665.841183]  [<ffffffff811c46db>] core_sys_select+0x1db/0x300
>    [ 7665.841183]  [<ffffffff811c574f>] ? __d_free+0x3f/0x60
>    [ 7665.841183]  [<ffffffff811c5b15>] ? d_free+0x55/0x60
>    [ 7665.841183]  [<ffffffff811c6461>] ? dentry_kill+0x121/0x1d0
>    [ 7665.841183]  [<ffffffff811cf26e>] ? mntput_no_expire+0x3e/0x120
>    [ 7665.841183]  [<ffffffff811cf374>] ? mntput+0x24/0x40
>    [ 7665.841183]  [<ffffffff8104609f>] ? kvm_clock_get_cycles+0x1f/0x30
>    [ 7665.841183]  [<ffffffff810b68f8>] ? ktime_get_ts+0x48/0xe0
>    [ 7665.841183]  [<ffffffff811c48ba>] SyS_select+0xba/0x110
>    [ 7665.841183]  [<ffffffff815fc819>] system_call_fastpath+0x16/0x1b
>    [ 7665.841183] in:imjournal    S ffff88003fc14540     0   630      1 0x00000080
>    [ 7665.841183]  ffff88003c023a30 0000000000000082 ffff88003c023fd8 0000000000014540
>    [ 7665.841183]  ffff88003c023fd8 0000000000014540 ffff88003bc4b8e0 0000000000000000
>    [ 7665.841183]  ffff88003bc4b8e0 00000000fffffffc 0000000000000000 ffff88003c023ba4
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff815f0c2d>] schedule_hrtimeout_range_clock+0x14d/0x170
>    [ 7665.841183]  [<ffffffff8108674c>] ? add_wait_queue+0x3c/0x50
>    [ 7665.841183]  [<ffffffff815f0c63>] schedule_hrtimeout_range+0x13/0x20
>    [ 7665.841183]  [<ffffffff811c3a90>] poll_schedule_timeout+0x60/0xc0
>    [ 7665.841183]  [<ffffffff811c501d>] do_sys_poll+0x4cd/0x580
>    [ 7665.841183]  [<ffffffff812be042>] ? radix_tree_lookup_slot+0x22/0x50
>    [ 7665.841183]  [<ffffffff811412ae>] ? __find_get_page+0x1e/0xa0
>    [ 7665.841183]  [<ffffffff81141a10>] ? __find_lock_page+0x30/0x70
>    [ 7665.841183]  [<ffffffff8115a275>] ? shmem_getpage_gfp+0xc5/0x7c0
>    [ 7665.841183]  [<ffffffff8109b808>] ? __enqueue_entity+0x78/0x80
>    [ 7665.841183]  [<ffffffff811c39a0>] ? poll_select_copy_remaining+0x150/0x150
>    [ 7665.841183]  [<ffffffff811685c9>] ? __do_fault+0x419/0x520
>    [ 7665.841183]  [<ffffffff8116c575>] ? handle_mm_fault+0x3e5/0xd90
>    [ 7665.841183]  [<ffffffff815f7934>] ? __do_page_fault+0x204/0x540
>    [ 7665.841183]  [<ffffffff81174a41>] ? mprotect_fixup+0x151/0x290
>    [ 7665.841183]  [<ffffffff811c51d4>] SyS_poll+0x74/0x110
>    [ 7665.841183]  [<ffffffff815f3ec8>] ? page_fault+0x28/0x30
>    [ 7665.841183]  [<ffffffff815fc819>] system_call_fastpath+0x16/0x1b
>    [ 7665.841183] rs:main Q:Reg   D ffff88003fc14540     0   631      1 0x00000080
>    [ 7665.841183]  ffff88003c025a28 0000000000000082 ffff88003c025fd8 0000000000014540
>    [ 7665.841183]  ffff88003c025fd8 0000000000014540 ffff88003bc4cfa0 ffff8800334da000
>    [ 7665.841183]  0000000000000000 ffff8800393cae38 ffff88003ff55750 ffff88003c025a90
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffffa01977a5>] do_get_write_access+0x315/0x560 [jbd2]
>    [ 7665.841183]  [<ffffffff8106e247>] ? internal_add_timer+0x17/0x40
>    [ 7665.841183]  [<ffffffff81086af0>] ? autoremove_wake_function+0x40/0x40
>    [ 7665.841183]  [<ffffffffa0197a17>] jbd2_journal_get_write_access+0x27/0x40 [jbd2]
>    [ 7665.841183]  [<ffffffffa01e5c6b>] __ext4_journal_get_write_access+0x3b/0x80 [ext4]
>    [ 7665.841183]  [<ffffffffa01bb180>] ext4_reserve_inode_write+0x70/0xa0 [ext4]
>    [ 7665.841183]  [<ffffffffa01be71d>] ? ext4_dirty_inode+0x3d/0x60 [ext4]
>    [ 7665.841183]  [<ffffffffa01bb203>] ext4_mark_inode_dirty+0x53/0x210 [ext4]
>    [ 7665.841183]  [<ffffffffa01be71d>] ext4_dirty_inode+0x3d/0x60 [ext4]
>    [ 7665.841183]  [<ffffffff811db4ba>] __mark_inode_dirty+0xca/0x290
>    [ 7665.841183]  [<ffffffff811ca681>] update_time+0x81/0xd0
>    [ 7665.841183]  [<ffffffff811ca8d0>] file_update_time+0xa0/0xf0
>    [ 7665.841183]  [<ffffffff81143688>] __generic_file_aio_write+0x198/0x3e0
>    [ 7665.841183]  [<ffffffff8114392d>] generic_file_aio_write+0x5d/0xc0
>    [ 7665.841183]  [<ffffffffa01b3189>] ext4_file_write+0xa9/0x450 [ext4]
>    [ 7665.841183]  [<ffffffff811bb572>] ? final_putname+0x22/0x50
>    [ 7665.841183]  [<ffffffff811bb779>] ? putname+0x29/0x40
>    [ 7665.841183]  [<ffffffff810bfc08>] ? get_futex_key+0x1c8/0x2a0
>    [ 7665.841183]  [<ffffffff811af20d>] do_sync_write+0x8d/0xd0
>    [ 7665.841183]  [<ffffffff811af9ad>] vfs_write+0xbd/0x1e0
>    [ 7665.841183]  [<ffffffff811b03f8>] SyS_write+0x58/0xb0
>    [ 7665.841183]  [<ffffffff815fc819>] system_call_fastpath+0x16/0x1b
>    [ 7665.841183] dbus-daemon     S ffff88003fc14540     0   604      1 0x00000080
>    [ 7665.841183]  ffff88003bb8ddb8 0000000000000082 ffff88003bb8dfd8 0000000000014540
>    [ 7665.841183]  ffff88003bb8dfd8 0000000000014540 ffff8800372a6660 0000000000000000
>    [ 7665.841183]  0000000000000000 ffff88003c41c2a0 ffff8800372a6660 0000000000000000
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff815f0c2d>] schedule_hrtimeout_range_clock+0x14d/0x170
>    [ 7665.841183]  [<ffffffff811f7f89>] ? ep_scan_ready_list.isra.9+0x1b9/0x1f0
>    [ 7665.841183]  [<ffffffff815f0c63>] schedule_hrtimeout_range+0x13/0x20
>    [ 7665.841183]  [<ffffffff811f8226>] ep_poll+0x246/0x370
>    [ 7665.841183]  [<ffffffff81097700>] ? wake_up_state+0x20/0x20
>    [ 7665.841183]  [<ffffffff811f932d>] SyS_epoll_wait+0xed/0x120
>    [ 7665.841183]  [<ffffffff815fc819>] system_call_fastpath+0x16/0x1b
>    [ 7665.841183] systemd-logind  S ffff88003fc14540     0   605      1 0x00000080
>    [ 7665.841183]  ffff88003bdefdb8 0000000000000082 ffff88003bdeffd8 0000000000014540
>    [ 7665.841183]  ffff88003bdeffd8 0000000000014540 ffff8800372a38e0 0000000000000000
>    [ 7665.841183]  0000000000000000 ffff880036917120 ffff8800372a38e0 0000000000000000
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff815f0c2d>] schedule_hrtimeout_range_clock+0x14d/0x170
>    [ 7665.841183]  [<ffffffff811f7f89>] ? ep_scan_ready_list.isra.9+0x1b9/0x1f0
>    [ 7665.841183]  [<ffffffff815f0c63>] schedule_hrtimeout_range+0x13/0x20
>    [ 7665.841183]  [<ffffffff811f8226>] ep_poll+0x246/0x370
>    [ 7665.841183]  [<ffffffff81097700>] ? wake_up_state+0x20/0x20
>    [ 7665.841183]  [<ffffffff811f932d>] SyS_epoll_wait+0xed/0x120
>    [ 7665.841183]  [<ffffffff815fc819>] system_call_fastpath+0x16/0x1b
>    [ 7665.841183] crond           S ffff88003fc14540     0   606      1 0x00000080
>    [ 7665.841183]  ffff88003c403e58 0000000000000082 ffff88003c403fd8 0000000000014540
>    [ 7665.841183]  ffff88003c403fd8 0000000000014540 ffff8800371ec440 ffff88003c403eb8
>    [ 7665.841183]  ffff8800371ec440 ffff8800371ec440 ffff8800371ec440 ffff8800371ec440
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff815f09d5>] do_nanosleep+0xc5/0x130
>    [ 7665.841183]  [<ffffffff8108a7bd>] hrtimer_nanosleep+0xad/0x170
>    [ 7665.841183]  [<ffffffff81089750>] ? hrtimer_get_res+0x50/0x50
>    [ 7665.841183]  [<ffffffff815f0981>] ? do_nanosleep+0x71/0x130
>    [ 7665.841183]  [<ffffffff8108a8fe>] SyS_nanosleep+0x7e/0x90
>    [ 7665.841183]  [<ffffffff815fc819>] system_call_fastpath+0x16/0x1b
>    [ 7665.841183] avahi-daemon    S ffff88003fc14540     0   608    597 0x00000080
>    [ 7665.841183]  ffff88003bc41b90 0000000000000082 ffff88003bc41fd8 0000000000014540
>    [ 7665.841183]  ffff88003bc41fd8 0000000000014540 ffff88003bc48b60 ffff88003bc48b60
>    [ 7665.841183]  ffff88003bc48b60 ffff8800372afda0 ffff8800372afa40 7fffffffffffffff
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff815ef7c9>] schedule_timeout+0x209/0x2d0
>    [ 7665.841183]  [<ffffffff8157de4b>] unix_stream_recvmsg+0x31b/0x8d0
>    [ 7665.841183]  [<ffffffff81086ab0>] ? wake_up_bit+0x30/0x30
>    [ 7665.841183]  [<ffffffff814c1366>] sock_aio_read.part.7+0x146/0x160
>    [ 7665.841183]  [<ffffffff814c24f9>] ? ___sys_sendmsg+0x3a9/0x3c0
>    [ 7665.841183]  [<ffffffff814c13a1>] sock_aio_read+0x21/0x30
>    [ 7665.841183]  [<ffffffff811af13d>] do_sync_read+0x8d/0xd0
>    [ 7665.841183]  [<ffffffff811af8c5>] vfs_read+0x145/0x170
>    [ 7665.841183]  [<ffffffff811b0348>] SyS_read+0x58/0xb0
>    [ 7665.841183]  [<ffffffff815fc819>] system_call_fastpath+0x16/0x1b
>    [ 7665.841183] iprinit         S ffff88003fc14540     0   623      1 0x00000080
>    [ 7665.841183]  ffff88003d62fab0 0000000000000086 ffff88003d62ffd8 0000000000014540
>    [ 7665.841183]  ffff88003d62ffd8 0000000000014540 ffff88003bc496c0 0000000000000000
>    [ 7665.841183]  ffff88003d62fc40 ffff88003d523090 ffff88003d523090 ffff88003d523000
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff815ef7c9>] schedule_timeout+0x209/0x2d0
>    [ 7665.841183]  [<ffffffff815e8942>] ? __slab_free+0x10e/0x277
>    [ 7665.841183]  [<ffffffff814cfe9c>] __skb_recv_datagram+0x43c/0x4f0
>    [ 7665.841183]  [<ffffffff814cb6be>] ? skb_free_head+0x1e/0x70
>    [ 7665.841183]  [<ffffffff814cffb0>] ? skb_recv_datagram+0x60/0x60
>    [ 7665.841183]  [<ffffffff814cff91>] skb_recv_datagram+0x41/0x60
>    [ 7665.841183]  [<ffffffff81505ed2>] netlink_recvmsg+0x62/0x3e0
>    [ 7665.841183]  [<ffffffff814c278f>] sock_recvmsg+0xbf/0x100
>    [ 7665.841183]  [<ffffffff810a0126>] ? dequeue_entity+0x106/0x510
>    [ 7665.841183]  [<ffffffff8104606f>] ? kvm_clock_read+0x1f/0x30
>    [ 7665.841183]  [<ffffffff814c2908>] SYSC_recvfrom+0xe8/0x160
>    [ 7665.841183]  [<ffffffff8108a7bd>] ? hrtimer_nanosleep+0xad/0x170
>    [ 7665.841183]  [<ffffffff81089750>] ? hrtimer_get_res+0x50/0x50
>    [ 7665.841183]  [<ffffffff815f0981>] ? do_nanosleep+0x71/0x130
>    [ 7665.841183]  [<ffffffff814c30ee>] SyS_recvfrom+0xe/0x10
>    [ 7665.841183]  [<ffffffff815fc819>] system_call_fastpath+0x16/0x1b
>    [ 7665.841183] iprupdate       S ffff88003fc14540     0   626      1 0x00000080
>    [ 7665.841183]  ffff88003bdfdab0 0000000000000082 ffff88003bdfdfd8 0000000000014540
>    [ 7665.841183]  ffff88003bdfdfd8 0000000000014540 ffff88003bc48000 0000000000000000
>    [ 7665.841183]  ffff88003bdfdc40 ffff88003c049890 ffff88003c049890 ffff88003c049800
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff815ef7c9>] schedule_timeout+0x209/0x2d0
>    [ 7665.841183]  [<ffffffff811885e9>] ? alloc_pages_current+0xa9/0x170
>    [ 7665.841183]  [<ffffffff814cfe9c>] __skb_recv_datagram+0x43c/0x4f0
>    [ 7665.841183]  [<ffffffff811c8ae0>] ? __d_lookup+0x120/0x160
>    [ 7665.841183]  [<ffffffff814cffb0>] ? skb_recv_datagram+0x60/0x60
>    [ 7665.841183]  [<ffffffff814cff91>] skb_recv_datagram+0x41/0x60
>    [ 7665.841183]  [<ffffffff81505ed2>] netlink_recvmsg+0x62/0x3e0
>    [ 7665.841183]  [<ffffffff814c278f>] sock_recvmsg+0xbf/0x100
>    [ 7665.841183]  [<ffffffff810a0126>] ? dequeue_entity+0x106/0x510
>    [ 7665.841183]  [<ffffffff8104606f>] ? kvm_clock_read+0x1f/0x30
>    [ 7665.841183]  [<ffffffff814c2908>] SYSC_recvfrom+0xe8/0x160
>    [ 7665.841183]  [<ffffffff8108a7bd>] ? hrtimer_nanosleep+0xad/0x170
>    [ 7665.841183]  [<ffffffff81089750>] ? hrtimer_get_res+0x50/0x50
>    [ 7665.841183]  [<ffffffff815f0981>] ? do_nanosleep+0x71/0x130
>    [ 7665.841183]  [<ffffffff814c30ee>] SyS_recvfrom+0xe/0x10
>    [ 7665.841183]  [<ffffffff815fc819>] system_call_fastpath+0x16/0x1b
>    [ 7665.841183] polkitd         S ffff88003fc14540     0   638      1 0x00000080
>    [ 7665.841183]  ffff88003d23ba30 0000000000000082 ffff88003d23bfd8 0000000000014540
>    [ 7665.841183]  ffff88003d23bfd8 0000000000014540 ffff88003bc4a220 0000000000000000
>    [ 7665.841183]  ffff88003bc4a220 00000000fffffffc 0000000000000000 ffff88003d23bbb4
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff815f0c2d>] schedule_hrtimeout_range_clock+0x14d/0x170
>    [ 7665.841183]  [<ffffffff8108674c>] ? add_wait_queue+0x3c/0x50
>    [ 7665.841183]  [<ffffffff815f0c63>] schedule_hrtimeout_range+0x13/0x20
>    [ 7665.841183]  [<ffffffff811c3a90>] poll_schedule_timeout+0x60/0xc0
>    [ 7665.841183]  [<ffffffff811c501d>] do_sys_poll+0x4cd/0x580
>    [ 7665.841183]  [<ffffffff8114ac24>] ? __alloc_pages_nodemask+0x174/0xb10
>    [ 7665.841183]  [<ffffffff811bb868>] ? inode_permission+0x18/0x50
>    [ 7665.841183]  [<ffffffff811c8ae0>] ? __d_lookup+0x120/0x160
>    [ 7665.841183]  [<ffffffff8109fc7c>] ? update_curr+0xcc/0x150
>    [ 7665.841183]  [<ffffffff8109b808>] ? __enqueue_entity+0x78/0x80
>    [ 7665.841183]  [<ffffffff811c39a0>] ? poll_select_copy_remaining+0x150/0x150
>    [ 7665.841183]  [<ffffffff811c39a0>] ? poll_select_copy_remaining+0x150/0x150
>    [ 7665.841183]  [<ffffffff811c39a0>] ? poll_select_copy_remaining+0x150/0x150
>    [ 7665.841183]  [<ffffffff810975d6>] ? try_to_wake_up+0x1b6/0x280
>    [ 7665.841183]  [<ffffffff81097712>] ? default_wake_function+0x12/0x20
>    [ 7665.841183]  [<ffffffff811c3a13>] ? pollwake+0x73/0x90
>    [ 7665.841183]  [<ffffffff81097700>] ? wake_up_state+0x20/0x20
>    [ 7665.841183]  [<ffffffff81086966>] ? finish_wait+0x56/0x70
>    [ 7665.841183]  [<ffffffff811fb4f7>] ? eventfd_ctx_read+0x67/0x260
>    [ 7665.841183]  [<ffffffff811c51d4>] SyS_poll+0x74/0x110
>    [ 7665.841183]  [<ffffffff810e6e46>] ? __audit_syscall_exit+0x1f6/0x2a0
>    [ 7665.841183]  [<ffffffff815fc819>] system_call_fastpath+0x16/0x1b
>    [ 7665.841183] gdbus           S ffff88003fc14540     0   642      1 0x00000080
>    [ 7665.841183]  ffff88003c18ba30 0000000000000082 ffff88003c18bfd8 0000000000014540
>    [ 7665.841183]  ffff88003c18bfd8 0000000000014540 ffff88003bc4e660 0000000000000000
>    [ 7665.841183]  ffff88003bc4e660 00000000fffffffc 0000000000000000 ffff88003c18bbb4
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff815f0c2d>] schedule_hrtimeout_range_clock+0x14d/0x170
>    [ 7665.841183]  [<ffffffff814cb6be>] ? skb_free_head+0x1e/0x70
>    [ 7665.841183]  [<ffffffff8108674c>] ? add_wait_queue+0x3c/0x50
>    [ 7665.841183]  [<ffffffff8108674c>] ? add_wait_queue+0x3c/0x50
>    [ 7665.841183]  [<ffffffff815f0c63>] schedule_hrtimeout_range+0x13/0x20
>    [ 7665.841183]  [<ffffffff811c3a90>] poll_schedule_timeout+0x60/0xc0
>    [ 7665.841183]  [<ffffffff811c501d>] do_sys_poll+0x4cd/0x580
>    [ 7665.841183]  [<ffffffff814c278f>] ? sock_recvmsg+0xbf/0x100
>    [ 7665.841183]  [<ffffffff8109fc7c>] ? update_curr+0xcc/0x150
>    [ 7665.841183]  [<ffffffff8109b808>] ? __enqueue_entity+0x78/0x80
>    [ 7665.841183]  [<ffffffff811c39a0>] ? poll_select_copy_remaining+0x150/0x150
>    [ 7665.841183]  [<ffffffff811c39a0>] ? poll_select_copy_remaining+0x150/0x150
>    [ 7665.841183]  [<ffffffff811c39a0>] ? poll_select_copy_remaining+0x150/0x150
>    [ 7665.841183]  [<ffffffff810975d6>] ? try_to_wake_up+0x1b6/0x280
>    [ 7665.841183]  [<ffffffff81097712>] ? default_wake_function+0x12/0x20
>    [ 7665.841183]  [<ffffffff811c3a13>] ? pollwake+0x73/0x90
>    [ 7665.841183]  [<ffffffff81097700>] ? wake_up_state+0x20/0x20
>    [ 7665.841183]  [<ffffffff8108ec58>] ? __wake_up_common+0x58/0x90
>    [ 7665.841183]  [<ffffffff81194e3a>] ? kmem_cache_alloc+0x1ba/0x1d0
>    [ 7665.841183]  [<ffffffff811b183c>] ? get_empty_filp+0x5c/0x190
>    [ 7665.841183]  [<ffffffff811fb4f7>] ? eventfd_ctx_read+0x67/0x260
>    [ 7665.841183]  [<ffffffff811c51d4>] SyS_poll+0x74/0x110
>    [ 7665.841183]  [<ffffffff810e6e46>] ? __audit_syscall_exit+0x1f6/0x2a0
>    [ 7665.841183]  [<ffffffff815fc819>] system_call_fastpath+0x16/0x1b
>    [ 7665.841183] JS GC Helper    S ffff88003fc14540     0   644      1 0x00000080
>    [ 7665.841183]  ffff88003d251cd0 0000000000000082 ffff88003d251fd8 0000000000014540
>    [ 7665.841183]  ffff88003d251fd8 0000000000014540 ffff8800371e8b60 ffff8800371e8b60
>    [ 7665.841183]  0000000000000000 ffff8800371e8b60 ffff88003d251de0 ffffc900001c4640
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff810bfedd>] futex_wait_queue_me+0xdd/0x140
>    [ 7665.841183]  [<ffffffff810c00b9>] futex_wait+0x179/0x280
>    [ 7665.841183]  [<ffffffff8116c575>] ? handle_mm_fault+0x3e5/0xd90
>    [ 7665.841183]  [<ffffffff810c28be>] do_futex+0xfe/0x5e0
>    [ 7665.841183]  [<ffffffff81194cb5>] ? kmem_cache_alloc+0x35/0x1d0
>    [ 7665.841183]  [<ffffffff8108c6b6>] ? prepare_creds+0x26/0x1c0
>    [ 7665.841183]  [<ffffffff810c2e20>] SyS_futex+0x80/0x180
>    [ 7665.841183]  [<ffffffff815fc819>] system_call_fastpath+0x16/0x1b
>    [ 7665.841183] JS Sour~ Thread S ffff88003fc14540     0   645      1 0x00000080
>    [ 7665.841183]  ffff88003d253cd0 0000000000000082 ffff88003d253fd8 0000000000014540
>    [ 7665.841183]  ffff88003d253fd8 0000000000014540 ffff8800371edb00 ffff8800371edb00
>    [ 7665.841183]  0000000000000000 ffff8800371edb00 ffff88003d253de0 ffffc900001c6400
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff810bfedd>] futex_wait_queue_me+0xdd/0x140
>    [ 7665.841183]  [<ffffffff810c00b9>] futex_wait+0x179/0x280
>    [ 7665.841183]  [<ffffffff810976f0>] ? wake_up_state+0x10/0x20
>    [ 7665.841183]  [<ffffffff810c0296>] ? wake_futex+0x66/0x80
>    [ 7665.841183]  [<ffffffff810bfc08>] ? get_futex_key+0x1c8/0x2a0
>    [ 7665.841183]  [<ffffffff810c28be>] do_futex+0xfe/0x5e0
>    [ 7665.841183]  [<ffffffff81194e13>] ? kmem_cache_alloc+0x193/0x1d0
>    [ 7665.841183]  [<ffffffff8108c6b6>] ? prepare_creds+0x26/0x1c0
>    [ 7665.841183]  [<ffffffff810c2e20>] SyS_futex+0x80/0x180
>    [ 7665.841183]  [<ffffffff815fc819>] system_call_fastpath+0x16/0x1b
>    [ 7665.841183] runaway-killer- S ffff88003fc14540     0   649      1 0x00000080
>    [ 7665.841183]  ffff88003c031a30 0000000000000082 ffff88003c031fd8 0000000000014540
>    [ 7665.841183]  ffff88003c031fd8 0000000000014540 ffff880037280000 0000000000000000
>    [ 7665.841183]  ffff880037280000 00000000fffffffc 0000000000000000 ffff88003c031ba4
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff815f0c2d>] schedule_hrtimeout_range_clock+0x14d/0x170
>    [ 7665.841183]  [<ffffffff81089750>] ? hrtimer_get_res+0x50/0x50
>    [ 7665.841183]  [<ffffffff8108674c>] ? add_wait_queue+0x3c/0x50
>    [ 7665.841183]  [<ffffffff815f0c63>] schedule_hrtimeout_range+0x13/0x20
>    [ 7665.841183]  [<ffffffff811c3a90>] poll_schedule_timeout+0x60/0xc0
>    [ 7665.841183]  [<ffffffff811c501d>] do_sys_poll+0x4cd/0x580
>    [ 7665.841183]  [<ffffffff8104606f>] ? kvm_clock_read+0x1f/0x30
>    [ 7665.841183]  [<ffffffff810a0a7e>] ? dequeue_task_fair+0x41e/0x620
>    [ 7665.841183]  [<ffffffff81099f58>] ? sched_clock_cpu+0xa8/0x100
>    [ 7665.841183]  [<ffffffff8109b776>] ? __dequeue_entity+0x26/0x40
>    [ 7665.841183]  [<ffffffff81011619>] ? __switch_to+0x179/0x490
>    [ 7665.841183]  [<ffffffff815f13d5>] ? __schedule+0x2c5/0x790
>    [ 7665.841183]  [<ffffffff811c39a0>] ? poll_select_copy_remaining+0x150/0x150
>    [ 7665.841183]  [<ffffffff810c00d3>] ? futex_wait+0x193/0x280
>    [ 7665.841183]  [<ffffffff81094f8d>] ? ttwu_do_activate.constprop.85+0x5d/0x70
>    [ 7665.841183]  [<ffffffff810975d6>] ? try_to_wake_up+0x1b6/0x280
>    [ 7665.841183]  [<ffffffff810bfc08>] ? get_futex_key+0x1c8/0x2a0
>    [ 7665.841183]  [<ffffffff810c03d9>] ? futex_wake+0x129/0x170
>    [ 7665.841183]  [<ffffffff811fb4f7>] ? eventfd_ctx_read+0x67/0x260
>    [ 7665.841183]  [<ffffffff81097700>] ? wake_up_state+0x20/0x20
>    [ 7665.841183]  [<ffffffff811fb73c>] ? eventfd_read+0x4c/0x90
>    [ 7665.841183]  [<ffffffff811c51d4>] SyS_poll+0x74/0x110
>    [ 7665.841183]  [<ffffffff810e6e46>] ? __audit_syscall_exit+0x1f6/0x2a0
>    [ 7665.841183]  [<ffffffff815fc819>] system_call_fastpath+0x16/0x1b
>    [ 7665.841183] gmain           S ffff88003fc14540     0   650      1 0x00000080
>    [ 7665.841183]  ffff88003c021a30 0000000000000082 ffff88003c021fd8 0000000000014540
>    [ 7665.841183]  ffff88003c021fd8 0000000000014540 ffff88003bc4db00 0000000000000000
>    [ 7665.841183]  ffff88003bc4db00 00000000fffffffc 0000000000000000 ffff88003c021ba4
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff815f0c2d>] schedule_hrtimeout_range_clock+0x14d/0x170
>    [ 7665.841183]  [<ffffffff8108674c>] ? add_wait_queue+0x3c/0x50
>    [ 7665.841183]  [<ffffffff815f0c63>] schedule_hrtimeout_range+0x13/0x20
>    [ 7665.841183]  [<ffffffff811c3a90>] poll_schedule_timeout+0x60/0xc0
>    [ 7665.841183]  [<ffffffff811c501d>] do_sys_poll+0x4cd/0x580
>    [ 7665.841183]  [<ffffffff8114ac24>] ? __alloc_pages_nodemask+0x174/0xb10
>    [ 7665.841183]  [<ffffffff81097712>] ? default_wake_function+0x12/0x20
>    [ 7665.841183]  [<ffffffff811c39a0>] ? poll_select_copy_remaining+0x150/0x150
>    [ 7665.841183]  [<ffffffff811a4de2>] ? __mem_cgroup_commit_charge+0x152/0x3a0
>    [ 7665.841183]  [<ffffffff8114fc5e>] ? lru_cache_add+0xe/0x10
>    [ 7665.841183]  [<ffffffff81176971>] ? page_add_new_anon_rmap+0x91/0x130
>    [ 7665.841183]  [<ffffffff8116c918>] ? handle_mm_fault+0x788/0xd90
>    [ 7665.841183]  [<ffffffff815f7934>] ? __do_page_fault+0x204/0x540
>    [ 7665.841183]  [<ffffffff811fb4f7>] ? eventfd_ctx_read+0x67/0x260
>    [ 7665.841183]  [<ffffffff811c51d4>] SyS_poll+0x74/0x110
>    [ 7665.841183]  [<ffffffff810e6e46>] ? __audit_syscall_exit+0x1f6/0x2a0
>    [ 7665.841183]  [<ffffffff815fc819>] system_call_fastpath+0x16/0x1b
>    [ 7665.841183] iprdump         S ffff88003fc14540     0   646      1 0x00000080
>    [ 7665.841183]  ffff88003d257ab0 0000000000000086 ffff88003d257fd8 0000000000014540
>    [ 7665.841183]  ffff88003d257fd8 0000000000014540 ffff8800371e96c0 0000000000000000
>    [ 7665.841183]  ffff88003d257c40 ffff88003c02d090 ffff88003c02d090 ffff88003c02d000
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff815ef7c9>] schedule_timeout+0x209/0x2d0
>    [ 7665.841183]  [<ffffffff814cfe9c>] __skb_recv_datagram+0x43c/0x4f0
>    [ 7665.841183]  [<ffffffff814cb6be>] ? skb_free_head+0x1e/0x70
>    [ 7665.841183]  [<ffffffff814cffb0>] ? skb_recv_datagram+0x60/0x60
>    [ 7665.841183]  [<ffffffff814cff91>] skb_recv_datagram+0x41/0x60
>    [ 7665.841183]  [<ffffffff81505ed2>] netlink_recvmsg+0x62/0x3e0
>    [ 7665.841183]  [<ffffffff814c278f>] sock_recvmsg+0xbf/0x100
>    [ 7665.841183]  [<ffffffff81141983>] ? unlock_page+0x23/0x30
>    [ 7665.841183]  [<ffffffff814c2908>] SYSC_recvfrom+0xe8/0x160
>    [ 7665.841183]  [<ffffffff8108a7bd>] ? hrtimer_nanosleep+0xad/0x170
>    [ 7665.841183]  [<ffffffff81089750>] ? hrtimer_get_res+0x50/0x50
>    [ 7665.841183]  [<ffffffff814c30ee>] SyS_recvfrom+0xe/0x10
>    [ 7665.841183]  [<ffffffff815fc819>] system_call_fastpath+0x16/0x1b
>    [ 7665.841183] kworker/0:1H    S ffff88003fc14540     0   652      2 0x00000080
>    [ 7665.841183]  ffff88003d245e50 0000000000000046 ffff88003d245fd8 0000000000014540
>    [ 7665.841183]  ffff88003d245fd8 0000000000014540 ffff8800371ef1c0 ffff88003fc14198
>    [ 7665.841183]  ffff88003d6112b0 ffff8800371ef1c0 ffff88003d611280 ffff88003fc14180
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff8107eea9>] worker_thread+0x1c9/0x400
>    [ 7665.841183]  [<ffffffff8107ece0>] ? rescuer_thread+0x400/0x400
>    [ 7665.841183]  [<ffffffff81085aef>] kthread+0xcf/0xe0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183]  [<ffffffff815fc76c>] ret_from_fork+0x7c/0xb0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183] dhclient        S ffff88003fc14540     0   806    599 0x00000080
>    [ 7665.841183]  ffff88003ccb98e8 0000000000000086 ffff88003ccb9fd8 0000000000014540
>    [ 7665.841183]  ffff88003ccb9fd8 0000000000014540 ffff88003d26e660 ffff88003ccb9ac8
>    [ 7665.841183]  0000000005f5e100 0000000000000000 0000000000000007 0000000000000007
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff815f0c0c>] schedule_hrtimeout_range_clock+0x12c/0x170
>    [ 7665.841183]  [<ffffffff81089750>] ? hrtimer_get_res+0x50/0x50
>    [ 7665.841183]  [<ffffffff815f0b8c>] ? schedule_hrtimeout_range_clock+0xac/0x170
>    [ 7665.841183]  [<ffffffff815f0c63>] schedule_hrtimeout_range+0x13/0x20
>    [ 7665.841183]  [<ffffffff811c3a90>] poll_schedule_timeout+0x60/0xc0
>    [ 7665.841183]  [<ffffffff811c4411>] do_select+0x6d1/0x7c0
>    [ 7665.841183]  [<ffffffff811c39a0>] ? poll_select_copy_remaining+0x150/0x150
>    [ 7665.841183]  [<ffffffff811c39a0>] ? poll_select_copy_remaining+0x150/0x150
>    [ 7665.841183]  [<ffffffff811943f2>] ? kmem_cache_free+0x1b2/0x1d0
>    [ 7665.841183]  [<ffffffff814c8ec7>] ? kfree_skbmem+0x37/0x90
>    [ 7665.841183]  [<ffffffff814cb86a>] ? __kfree_skb+0x1a/0x20
>    [ 7665.841183]  [<ffffffff814d005e>] ? skb_free_datagram_locked+0x8e/0xc0
>    [ 7665.841183]  [<ffffffff81542349>] ? udp_recvmsg+0x199/0x3d0
>    [ 7665.841183]  [<ffffffff8154d2db>] ? inet_recvmsg+0x7b/0xa0
>    [ 7665.841183]  [<ffffffff81141983>] ? unlock_page+0x23/0x30
>    [ 7665.841183]  [<ffffffff8116a2bb>] ? do_wp_page+0x3bb/0x7d0
>    [ 7665.841183]  [<ffffffff8114f1f9>] ? release_pages+0x1b9/0x220
>    [ 7665.841183]  [<ffffffff811c46db>] core_sys_select+0x1db/0x300
>    [ 7665.841183]  [<ffffffff815f7934>] ? __do_page_fault+0x204/0x540
>    [ 7665.841183]  [<ffffffff814c292f>] ? SYSC_recvfrom+0x10f/0x160
>    [ 7665.841183]  [<ffffffff8104609f>] ? kvm_clock_get_cycles+0x1f/0x30
>    [ 7665.841183]  [<ffffffff810b68f8>] ? ktime_get_ts+0x48/0xe0
>    [ 7665.841183]  [<ffffffff8104609f>] ? kvm_clock_get_cycles+0x1f/0x30
>    [ 7665.841183]  [<ffffffff810b68f8>] ? ktime_get_ts+0x48/0xe0
>    [ 7665.841183]  [<ffffffff811c48ba>] SyS_select+0xba/0x110
>    [ 7665.841183]  [<ffffffff815fc819>] system_call_fastpath+0x16/0x1b
>    [ 7665.841183] sshd            S ffff88003fc14540     0   858      1 0x00000080
>    [ 7665.841183]  ffff88003cdb38e8 0000000000000082 ffff88003cdb3fd8 0000000000014540
>    [ 7665.841183]  ffff88003cdb3fd8 0000000000014540 ffff88003c72a220 0000000000000000
>    [ 7665.841183]  ffff88003c72a220 00000000fffffffc 0000000000000005 0000000000000005
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff815f0c2d>] schedule_hrtimeout_range_clock+0x14d/0x170
>    [ 7665.841183]  [<ffffffff8108674c>] ? add_wait_queue+0x3c/0x50
>    [ 7665.841183]  [<ffffffff811c37af>] ? __pollwait+0x7f/0xf0
>    [ 7665.841183]  [<ffffffff815f0c63>] schedule_hrtimeout_range+0x13/0x20
>    [ 7665.841183]  [<ffffffff811c3a90>] poll_schedule_timeout+0x60/0xc0
>    [ 7665.841183]  [<ffffffff811c4411>] do_select+0x6d1/0x7c0
>    [ 7665.841183]  [<ffffffff8115fd49>] ? zone_statistics+0x89/0xa0
>    [ 7665.841183]  [<ffffffff811c39a0>] ? poll_select_copy_remaining+0x150/0x150
>    [ 7665.841183]  [<ffffffff811c39a0>] ? poll_select_copy_remaining+0x150/0x150
>    [ 7665.841183]  [<ffffffff812c13b2>] ? put_dec+0x72/0x90
>    [ 7665.841183]  [<ffffffff812c23a3>] ? number.isra.1+0x323/0x360
>    [ 7665.841183]  [<ffffffff811f2d37>] ? fsnotify_clear_marks_by_inode+0xa7/0x140
>    [ 7665.841183]  [<ffffffff812c43f1>] ? vsnprintf+0x441/0x6a0
>    [ 7665.841183]  [<ffffffff811c46db>] core_sys_select+0x1db/0x300
>    [ 7665.841183]  [<ffffffff810ff5fd>] ? call_rcu_sched+0x1d/0x20
>    [ 7665.841183]  [<ffffffff8101c051>] ? init_fpu+0x51/0xb0
>    [ 7665.841183]  [<ffffffff8101d1d8>] ? __restore_xstate_sig+0x248/0x530
>    [ 7665.841183]  [<ffffffff81086901>] ? remove_wait_queue+0x31/0x40
>    [ 7665.841183]  [<ffffffff810636db>] ? do_wait+0x13b/0x260
>    [ 7665.841183]  [<ffffffff81070f8b>] ? recalc_sigpending+0x1b/0x50
>    [ 7665.841183]  [<ffffffff811c48ba>] SyS_select+0xba/0x110
>    [ 7665.841183]  [<ffffffff815fc819>] system_call_fastpath+0x16/0x1b
>    [ 7665.841183] rhsmcertd       S ffff88003fc14540     0   861      1 0x00000080
>    [ 7665.841183]  ffff88003d351a30 0000000000000082 ffff88003d351fd8 0000000000014540
>    [ 7665.841183]  ffff88003d351fd8 0000000000014540 ffff88003bc4f1c0 ffff88003d351b88
>    [ 7665.841183]  0000000005f5e100 0000000000000000 0000000000000000 ffff88003d351ba4
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff815f0c0c>] schedule_hrtimeout_range_clock+0x12c/0x170
>    [ 7665.841183]  [<ffffffff81089750>] ? hrtimer_get_res+0x50/0x50
>    [ 7665.841183]  [<ffffffff815f0b8c>] ? schedule_hrtimeout_range_clock+0xac/0x170
>    [ 7665.841183]  [<ffffffff815f0c63>] schedule_hrtimeout_range+0x13/0x20
>    [ 7665.841183]  [<ffffffff811c3a90>] poll_schedule_timeout+0x60/0xc0
>    [ 7665.841183]  [<ffffffff811c501d>] do_sys_poll+0x4cd/0x580
>    [ 7665.841183]  [<ffffffff8114160b>] ? generic_file_buffered_write+0x1bb/0x290
>    [ 7665.841183]  [<ffffffff811a3f9d>] ? __mem_cgroup_uncharge_common+0xcd/0x2f0
>    [ 7665.841183]  [<ffffffff8115f9de>] ? __dec_zone_page_state+0x2e/0x30
>    [ 7665.841183]  [<ffffffff811c39a0>] ? poll_select_copy_remaining+0x150/0x150
>    [ 7665.841183]  [<ffffffff8116a2bb>] ? do_wp_page+0x3bb/0x7d0
>    [ 7665.841183]  [<ffffffff8114f1f9>] ? release_pages+0x1b9/0x220
>    [ 7665.841183]  [<ffffffff8116c724>] ? handle_mm_fault+0x594/0xd90
>    [ 7665.841183]  [<ffffffff815f7934>] ? __do_page_fault+0x204/0x540
>    [ 7665.841183]  [<ffffffff811cf26e>] ? mntput_no_expire+0x3e/0x120
>    [ 7665.841183]  [<ffffffff811708a1>] ? vma_rb_erase+0x121/0x220
>    [ 7665.841183]  [<ffffffff811703f3>] ? remove_vma+0x63/0x70
>    [ 7665.841183]  [<ffffffff8104609f>] ? kvm_clock_get_cycles+0x1f/0x30
>    [ 7665.841183]  [<ffffffff810b68f8>] ? ktime_get_ts+0x48/0xe0
>    [ 7665.841183]  [<ffffffff811c51d4>] SyS_poll+0x74/0x110
>    [ 7665.841183]  [<ffffffff815fc819>] system_call_fastpath+0x16/0x1b
>    [ 7665.841183] agetty          S ffff88003fc14540     0   873      1 0x00000080
>    [ 7665.841183]  ffff88003c16dd00 0000000000000086 ffff88003c16dfd8 0000000000014540
>    [ 7665.841183]  ffff88003c16dfd8 0000000000014540 ffff88003c72db00 ffff88003733d200
>    [ 7665.841183]  7fffffffffffffff ffff88003d246800 ffff88003d246800 ffff88003d246400
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff815ef7c9>] schedule_timeout+0x209/0x2d0
>    [ 7665.841183]  [<ffffffff8107f23b>] ? flush_work+0x15b/0x1c0
>    [ 7665.841183]  [<ffffffff815f368b>] ? _raw_spin_unlock_irqrestore+0x1b/0x40
>    [ 7665.841183]  [<ffffffff8137419f>] n_tty_read+0x27f/0x9a0
>    [ 7665.841183]  [<ffffffff81097700>] ? wake_up_state+0x20/0x20
>    [ 7665.841183]  [<ffffffff8136f9bd>] tty_read+0x8d/0x100
>    [ 7665.841183]  [<ffffffff811af81c>] vfs_read+0x9c/0x170
>    [ 7665.841183]  [<ffffffff811b0348>] SyS_read+0x58/0xb0
>    [ 7665.841183]  [<ffffffff815fc819>] system_call_fastpath+0x16/0x1b
>    [ 7665.841183] login           S ffff88003fc14540     0   874      1 0x00000080
>    [ 7665.841183]  ffff88003cf77e68 0000000000000086 ffff88003cf77fd8 0000000000014540
>    [ 7665.841183]  ffff88003cf77fd8 0000000000014540 ffff88003727ad80 ffff88003cf77ef8
>    [ 7665.841183]  ffff88003727b270 ffff88003727ad80 ffff88003727ad80 ffff88003727ad70
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff810637a3>] do_wait+0x203/0x260
>    [ 7665.841183]  [<ffffffff810648c0>] SyS_wait4+0x80/0x110
>    [ 7665.841183]  [<ffffffff81062380>] ? task_stopped_code+0x60/0x60
>    [ 7665.841183]  [<ffffffff815fc819>] system_call_fastpath+0x16/0x1b
>    [ 7665.841183] master          S ffff88003fc14540     0  1472      1 0x00000080
>    [ 7665.841183]  ffff88003cf57db8 0000000000000086 ffff88003cf57fd8 0000000000014540
>    [ 7665.841183]  ffff88003cf57fd8 0000000000014540 ffff88003c72ad80 ffff88003cf57ea8
>    [ 7665.841183]  00000000039386ff 0000000000000000 ffff88003c72ad80 ffff88003cf57ea8
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff815f0c0c>] schedule_hrtimeout_range_clock+0x12c/0x170
>    [ 7665.841183]  [<ffffffff81089750>] ? hrtimer_get_res+0x50/0x50
>    [ 7665.841183]  [<ffffffff815f0b8c>] ? schedule_hrtimeout_range_clock+0xac/0x170
>    [ 7665.841183]  [<ffffffff815f0c63>] schedule_hrtimeout_range+0x13/0x20
>    [ 7665.841183]  [<ffffffff811f8226>] ep_poll+0x246/0x370
>    [ 7665.841183]  [<ffffffff81097700>] ? wake_up_state+0x20/0x20
>    [ 7665.841183]  [<ffffffff811f932d>] SyS_epoll_wait+0xed/0x120
>    [ 7665.841183]  [<ffffffff815fc819>] system_call_fastpath+0x16/0x1b
>    [ 7665.841183] qmgr            S ffff88003fc14540     0  1483   1472 0x00000080
>    [ 7665.841183]  ffff88003c6f7db8 0000000000000082 ffff88003c6f7fd8 0000000000014540
>    [ 7665.841183]  ffff88003c6f7fd8 0000000000014540 ffff8800372a2d80 ffff88003c6f7ea8
>    [ 7665.841183]  0000000005f5e100 0000000000000000 ffff8800372a2d80 ffff88003c6f7ea8
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff815f0c0c>] schedule_hrtimeout_range_clock+0x12c/0x170
>    [ 7665.841183]  [<ffffffff81089750>] ? hrtimer_get_res+0x50/0x50
>    [ 7665.841183]  [<ffffffff815f0b8c>] ? schedule_hrtimeout_range_clock+0xac/0x170
>    [ 7665.841183]  [<ffffffff815f0c63>] schedule_hrtimeout_range+0x13/0x20
>    [ 7665.841183]  [<ffffffff811f8226>] ep_poll+0x246/0x370
>    [ 7665.841183]  [<ffffffff811c2dc5>] ? do_vfs_ioctl+0x2e5/0x4c0
>    [ 7665.841183]  [<ffffffff81097700>] ? wake_up_state+0x20/0x20
>    [ 7665.841183]  [<ffffffff811f932d>] SyS_epoll_wait+0xed/0x120
>    [ 7665.841183]  [<ffffffff815fc819>] system_call_fastpath+0x16/0x1b
>    [ 7665.841183] bash            S ffff88003fc14540     0  1872    874 0x00000080
>    [ 7665.841183]  ffff8800373ffe68 0000000000000086 ffff8800373fffd8 0000000000014540
>    [ 7665.841183]  ffff8800373fffd8 0000000000014540 ffff8800372a4fa0 ffff8800373ffef8
>    [ 7665.841183]  ffff8800372a5490 ffff8800372a4fa0 ffff8800372a4fa0 ffff8800372a4f90
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff810637a3>] do_wait+0x203/0x260
>    [ 7665.841183]  [<ffffffff810648c0>] SyS_wait4+0x80/0x110
>    [ 7665.841183]  [<ffffffff81062380>] ? task_stopped_code+0x60/0x60
>    [ 7665.841183]  [<ffffffff815fc819>] system_call_fastpath+0x16/0x1b
>    [ 7665.841183] sysfsd          S ffff88003fc14540     0  2185      2 0x00000080
>    [ 7665.841183]  ffff88003d357e20 0000000000000046 ffff88003d357fd8 0000000000014540
>    [ 7665.841183]  ffff88003d357fd8 0000000000014540 ffff8800372838e0 ffff88003c161f80
>    [ 7665.841183]  ffff8800372838e0 ffff8800370ba880 0000000000000000 ffff88003c161fb0
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff8107eb6a>] rescuer_thread+0x28a/0x400
>    [ 7665.841183]  [<ffffffff8107e8e0>] ? manage_workers.isra.25+0x2e0/0x2e0
>    [ 7665.841183]  [<ffffffff81085aef>] kthread+0xcf/0xe0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183]  [<ffffffff815fc76c>] ret_from_fork+0x7c/0xb0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183] kworker/0:1     S ffff88003fc14540     0  2502      2 0x00000080
>    [ 7665.841183]  ffff880036e3de50 0000000000000046 ffff880036e3dfd8 0000000000014540
>    [ 7665.841183]  ffff880036e3dfd8 0000000000014540 ffff8800372738e0 ffff88003fc13dd8
>    [ 7665.841183]  ffff880036d7c830 ffff8800372738e0 ffff880036d7c800 ffff88003fc13dc0
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff8107eea9>] worker_thread+0x1c9/0x400
>    [ 7665.841183]  [<ffffffff8107ece0>] ? rescuer_thread+0x400/0x400
>    [ 7665.841183]  [<ffffffff81085aef>] kthread+0xcf/0xe0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183]  [<ffffffff815fc76c>] ret_from_fork+0x7c/0xb0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183] kworker/u2:1    D ffff88003fc14540     0  2651      2 0x00000080
>    [ 7665.841183] Workqueue: writeback bdi_writeback_workfn (flush-253:3)
>    [ 7665.841183]  ffff88003c31d608 0000000000000046 ffff88003c31dfd8 0000000000014540
>    [ 7665.841183]  ffff88003c31dfd8 0000000000014540 ffff880037276660 ffff88003fc14e08
>    [ 7665.841183]  ffff88003c31d690 0000000000000002 ffffffff811e1190 ffff88003c31d680
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff811e1190>] ? generic_block_bmap+0x70/0x70
>    [ 7665.841183]  [<ffffffff815f1bed>] io_schedule+0x9d/0x140
>    [ 7665.841183]  [<ffffffff811e119e>] sleep_on_buffer+0xe/0x20
>    [ 7665.841183]  [<ffffffff815efa8b>] __wait_on_bit_lock+0x5b/0xc0
>    [ 7665.841183]  [<ffffffff811e1190>] ? generic_block_bmap+0x70/0x70
>    [ 7665.841183]  [<ffffffff815efb77>] out_of_line_wait_on_bit_lock+0x87/0xb0
>    [ 7665.841183]  [<ffffffff81086af0>] ? autoremove_wake_function+0x40/0x40
>    [ 7665.841183]  [<ffffffff811e25b2>] __lock_buffer+0x32/0x40
>    [ 7665.841183]  [<ffffffffa019796a>] do_get_write_access+0x4da/0x560 [jbd2]
>    [ 7665.841183]  [<ffffffff811e2a3d>] ? __getblk+0x2d/0x2e0
>    [ 7665.841183]  [<ffffffff81194cb5>] ? kmem_cache_alloc+0x35/0x1d0
>    [ 7665.841183]  [<ffffffffa01a1651>] ? jbd2_journal_add_journal_head+0x61/0x200 [jbd2]
>    [ 7665.841183]  [<ffffffffa0197a17>] jbd2_journal_get_write_access+0x27/0x40 [jbd2]
>    [ 7665.841183]  [<ffffffffa01e5c6b>] __ext4_journal_get_write_access+0x3b/0x80 [ext4]
>    [ 7665.841183]  [<ffffffffa01ec848>] ext4_mb_mark_diskspace_used+0xf8/0x4f0 [ext4]
>    [ 7665.841183]  [<ffffffffa01edfbd>] ext4_mb_new_blocks+0x2ad/0x580 [ext4]
>    [ 7665.841183]  [<ffffffffa01e4365>] ext4_ext_map_blocks+0x695/0xfa0 [ext4]
>    [ 7665.841183]  [<ffffffffa01b8a35>] ext4_map_blocks+0x2b5/0x4d0 [ext4]
>    [ 7665.841183]  [<ffffffffa01bb52e>] mpage_da_map_and_submit+0x16e/0x450 [ext4]
>    [ 7665.841183]  [<ffffffffa01bc04e>] ? ext4_da_writepages+0x2de/0x610 [ext4]
>    [ 7665.841183]  [<ffffffffa01bc09d>] ext4_da_writepages+0x32d/0x610 [ext4]
>    [ 7665.841183]  [<ffffffff8114da2e>] do_writepages+0x1e/0x40
>    [ 7665.841183]  [<ffffffff811d8cb0>] __writeback_single_inode+0x40/0x220
>    [ 7665.841183]  [<ffffffff811d973e>] writeback_sb_inodes+0x25e/0x420
>    [ 7665.841183]  [<ffffffff811d999f>] __writeback_inodes_wb+0x9f/0xd0
>    [ 7665.841183]  [<ffffffff811da1f3>] wb_writeback+0x243/0x2c0
>    [ 7665.841183]  [<ffffffff811dbabc>] bdi_writeback_workfn+0x2ec/0x460
>    [ 7665.841183]  [<ffffffff8107e02b>] process_one_work+0x17b/0x460
>    [ 7665.841183]  [<ffffffff8107edfb>] worker_thread+0x11b/0x400
>    [ 7665.841183]  [<ffffffff8107ece0>] ? rescuer_thread+0x400/0x400
>    [ 7665.841183]  [<ffffffff81085aef>] kthread+0xcf/0xe0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183]  [<ffffffff815fc76c>] ret_from_fork+0x7c/0xb0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183] pickup          S ffff88003fc14540     0  2708   1472 0x00000080
>    [ 7665.841183]  ffff88003c435db8 0000000000000086 ffff88003c435fd8 0000000000014540
>    [ 7665.841183]  ffff88003c435fd8 0000000000014540 ffff8800372a16c0 ffff88003c435ea8
>    [ 7665.841183]  0000000005f5e0ff 0000000000000000 ffff8800372a16c0 ffff88003c435ea8
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff815f0c0c>] schedule_hrtimeout_range_clock+0x12c/0x170
>    [ 7665.841183]  [<ffffffff81089750>] ? hrtimer_get_res+0x50/0x50
>    [ 7665.841183]  [<ffffffff815f0b8c>] ? schedule_hrtimeout_range_clock+0xac/0x170
>    [ 7665.841183]  [<ffffffff815f0c63>] schedule_hrtimeout_range+0x13/0x20
>    [ 7665.841183]  [<ffffffff811f8226>] ep_poll+0x246/0x370
>    [ 7665.841183]  [<ffffffff81097700>] ? wake_up_state+0x20/0x20
>    [ 7665.841183]  [<ffffffff811f932d>] SyS_epoll_wait+0xed/0x120
>    [ 7665.841183]  [<ffffffff815fc819>] system_call_fastpath+0x16/0x1b
>    [ 7665.841183] kworker/u2:0    S ffff88003fc14540     0  2745      2 0x00000080
>    [ 7665.841183]  ffff88003d515e50 0000000000000046 ffff88003d515fd8 0000000000014540
>    [ 7665.841183]  ffff88003d515fd8 0000000000014540 ffff88003bbb38e0 ffff88003daad818
>    [ 7665.841183]  ffff88003cda4630 ffff88003bbb38e0 ffff88003cda4600 ffff88003daad800
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff8107eea9>] worker_thread+0x1c9/0x400
>    [ 7665.841183]  [<ffffffff8107ece0>] ? rescuer_thread+0x400/0x400
>    [ 7665.841183]  [<ffffffff81085aef>] kthread+0xcf/0xe0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183]  [<ffffffff815fc76c>] ret_from_fork+0x7c/0xb0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183] kworker/0:2     R  running task        0  2758      2 0x00000080
>    [ 7665.841183]  ffff88003c335e50 0000000000000046 ffff88003c335fd8 0000000000014540
>    [ 7665.841183]  ffff88003c335fd8 0000000000014540 ffff88003da938e0 ffff88003fc13dd8
>    [ 7665.841183]  ffff880036da1ab0 ffff88003da938e0 ffff880036da1a80 ffff88003fc13dc0
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff8107eea9>] worker_thread+0x1c9/0x400
>    [ 7665.841183]  [<ffffffff8107ece0>] ? rescuer_thread+0x400/0x400
>    [ 7665.841183]  [<ffffffff81085aef>] kthread+0xcf/0xe0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183]  [<ffffffff815fc76c>] ret_from_fork+0x7c/0xb0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183] kworker/0:3     S ffff88003fc14540     0  2860      2 0x00000080
>    [ 7665.841183]  ffff88003c749e50 0000000000000046 ffff88003c749fd8 0000000000014540
>    [ 7665.841183]  ffff88003c749fd8 0000000000014540 ffff88003d26a220 ffff88003fc13dd8
>    [ 7665.841183]  ffff880000068530 ffff88003d26a220 ffff880000068500 ffff88003fc13dc0
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff8107eea9>] worker_thread+0x1c9/0x400
>    [ 7665.841183]  [<ffffffff8107ece0>] ? rescuer_thread+0x400/0x400
>    [ 7665.841183]  [<ffffffff81085aef>] kthread+0xcf/0xe0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183]  [<ffffffff815fc76c>] ret_from_fork+0x7c/0xb0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183] kdmflush        S ffff88003fc14540     0  3033      2 0x00000080
>    [ 7665.841183]  ffff88003cf17e20 0000000000000046 ffff88003cf17fd8 0000000000014540
>    [ 7665.841183]  ffff88003cf17fd8 0000000000014540 ffff88003c72e660 ffff8800374aeb80
>    [ 7665.841183]  ffff88003c72e660 ffff88003681aa80 0000000000000000 ffff8800374aebb0
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff8107eb6a>] rescuer_thread+0x28a/0x400
>    [ 7665.841183]  [<ffffffff8107e8e0>] ? manage_workers.isra.25+0x2e0/0x2e0
>    [ 7665.841183]  [<ffffffff81085aef>] kthread+0xcf/0xe0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183]  [<ffffffff815fc76c>] ret_from_fork+0x7c/0xb0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183] bioset          S ffff88003fc14540     0  3035      2 0x00000080
>    [ 7665.841183]  ffff8800372bfe20 0000000000000046 ffff8800372bffd8 0000000000014540
>    [ 7665.841183]  ffff8800372bffd8 0000000000014540 ffff88003c7296c0 ffff8800374ae980
>    [ 7665.841183]  ffff88003c7296c0 ffff88003681a680 0000000000000000 ffff8800374ae9b0
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff8107eb6a>] rescuer_thread+0x28a/0x400
>    [ 7665.841183]  [<ffffffff8107e8e0>] ? manage_workers.isra.25+0x2e0/0x2e0
>    [ 7665.841183]  [<ffffffff81085aef>] kthread+0xcf/0xe0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183]  [<ffffffff815fc76c>] ret_from_fork+0x7c/0xb0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183] kdmflush        S ffff88003fc14540     0  3037      2 0x00000080
>    [ 7665.841183]  ffff88003c7bbe20 0000000000000046 ffff88003c7bbfd8 0000000000014540
>    [ 7665.841183]  ffff88003c7bbfd8 0000000000014540 ffff88003c72b8e0 ffff8800374ae380
>    [ 7665.841183]  ffff88003c72b8e0 ffff8800373c3080 0000000000000000 ffff8800374ae3b0
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff8107eb6a>] rescuer_thread+0x28a/0x400
>    [ 7665.841183]  [<ffffffff8107e8e0>] ? manage_workers.isra.25+0x2e0/0x2e0
>    [ 7665.841183]  [<ffffffff81085aef>] kthread+0xcf/0xe0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183]  [<ffffffff815fc76c>] ret_from_fork+0x7c/0xb0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183] bioset          S ffff88003fc14540     0  3039      2 0x00000080
>    [ 7665.841183]  ffff88003c6ede20 0000000000000046 ffff88003c6edfd8 0000000000014540
>    [ 7665.841183]  ffff88003c6edfd8 0000000000014540 ffff88003702db00 ffff8800374aeb00
>    [ 7665.841183]  ffff88003702db00 ffff88003c7fcc80 0000000000000000 ffff8800374aeb30
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff8107eb6a>] rescuer_thread+0x28a/0x400
>    [ 7665.841183]  [<ffffffff8107e8e0>] ? manage_workers.isra.25+0x2e0/0x2e0
>    [ 7665.841183]  [<ffffffff81085aef>] kthread+0xcf/0xe0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183]  [<ffffffff815fc76c>] ret_from_fork+0x7c/0xb0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183] kdmflush        S ffff88003fc14540     0  3042      2 0x00000080
>    [ 7665.841183]  ffff88003d24be20 0000000000000046 ffff88003d24bfd8 0000000000014540
>    [ 7665.841183]  ffff88003d24bfd8 0000000000014540 ffff88003bbb4fa0 ffff8800374ae180
>    [ 7665.841183]  ffff88003bbb4fa0 ffff88003681a080 0000000000000000 ffff8800374ae1b0
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff8107eb6a>] rescuer_thread+0x28a/0x400
>    [ 7665.841183]  [<ffffffff8107e8e0>] ? manage_workers.isra.25+0x2e0/0x2e0
>    [ 7665.841183]  [<ffffffff81085aef>] kthread+0xcf/0xe0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183]  [<ffffffff815fc76c>] ret_from_fork+0x7c/0xb0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183] bioset          S ffff88003fc14540     0  3044      2 0x00000080
>    [ 7665.841183]  ffff88003c451e20 0000000000000046 ffff88003c451fd8 0000000000014540
>    [ 7665.841183]  ffff88003c451fd8 0000000000014540 ffff88003c72c440 ffff88003ce98180
>    [ 7665.841183]  ffff88003c72c440 ffff88003733c480 0000000000000000 ffff88003ce981b0
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff8107eb6a>] rescuer_thread+0x28a/0x400
>    [ 7665.841183]  [<ffffffff8107e8e0>] ? manage_workers.isra.25+0x2e0/0x2e0
>    [ 7665.841183]  [<ffffffff81085aef>] kthread+0xcf/0xe0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183]  [<ffffffff815fc76c>] ret_from_fork+0x7c/0xb0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183] bioset          S ffff88003fc14540     0  3046      2 0x00000080
>    [ 7665.841183]  ffff88003c317e20 0000000000000046 ffff88003c317fd8 0000000000014540
>    [ 7665.841183]  ffff88003c317fd8 0000000000014540 ffff88003da92220 ffff88003c161800
>    [ 7665.841183]  ffff88003da92220 ffff88003c4b1c80 0000000000000000 ffff88003c161830
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff8107eb6a>] rescuer_thread+0x28a/0x400
>    [ 7665.841183]  [<ffffffff8107e8e0>] ? manage_workers.isra.25+0x2e0/0x2e0
>    [ 7665.841183]  [<ffffffff81085aef>] kthread+0xcf/0xe0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183]  [<ffffffff815fc76c>] ret_from_fork+0x7c/0xb0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183] bioset          S ffff88003fc14540     0  3048      2 0x00000080
>    [ 7665.841183]  ffff88000006be20 0000000000000046 ffff88000006bfd8 0000000000014540
>    [ 7665.841183]  ffff88000006bfd8 0000000000014540 ffff880037275b00 ffff880036904f80
>    [ 7665.841183]  ffff880037275b00 ffff88003c4b1a80 0000000000000000 ffff880036904fb0
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff8107eb6a>] rescuer_thread+0x28a/0x400
>    [ 7665.841183]  [<ffffffff8107e8e0>] ? manage_workers.isra.25+0x2e0/0x2e0
>    [ 7665.841183]  [<ffffffff81085aef>] kthread+0xcf/0xe0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183]  [<ffffffff815fc76c>] ret_from_fork+0x7c/0xb0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183] kmirrord        S ffff88003fc14540     0  3050      2 0x00000080
>    [ 7665.841183]  ffff88003cf43e20 0000000000000046 ffff88003cf43fd8 0000000000014540
>    [ 7665.841183]  ffff88003cf43fd8 0000000000014540 ffff880037274fa0 ffff880037193f80
>    [ 7665.841183]  ffff880037274fa0 ffff88003c4b1080 0000000000000000 ffff880037193fb0
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff8107eb6a>] rescuer_thread+0x28a/0x400
>    [ 7665.841183]  [<ffffffff8107e8e0>] ? manage_workers.isra.25+0x2e0/0x2e0
>    [ 7665.841183]  [<ffffffff81085aef>] kthread+0xcf/0xe0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183]  [<ffffffff815fc76c>] ret_from_fork+0x7c/0xb0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183] kcopyd          S ffff88003fc14540     0  3052      2 0x00000080
>    [ 7665.841183]  ffff88003d52de20 0000000000000046 ffff88003d52dfd8 0000000000014540
>    [ 7665.841183]  ffff88003d52dfd8 0000000000014540 ffff880037272220 ffff88003c161480
>    [ 7665.841183]  ffff880037272220 ffff88003c4b1280 0000000000000000 ffff88003c1614b0
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff8107eb6a>] rescuer_thread+0x28a/0x400
>    [ 7665.841183]  [<ffffffff8107e8e0>] ? manage_workers.isra.25+0x2e0/0x2e0
>    [ 7665.841183]  [<ffffffff81085aef>] kthread+0xcf/0xe0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183]  [<ffffffff815fc76c>] ret_from_fork+0x7c/0xb0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183] bioset          S ffff88003fc14540     0  3053      2 0x00000080
>    [ 7665.841183]  ffff88003d53be20 0000000000000046 ffff88003d53bfd8 0000000000014540
>    [ 7665.841183]  ffff88003d53bfd8 0000000000014540 ffff8800372716c0 ffff880037262980
>    [ 7665.841183]  ffff8800372716c0 ffff88003733c880 0000000000000000 ffff8800372629b0
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff8107eb6a>] rescuer_thread+0x28a/0x400
>    [ 7665.841183]  [<ffffffff8107e8e0>] ? manage_workers.isra.25+0x2e0/0x2e0
>    [ 7665.841183]  [<ffffffff81085aef>] kthread+0xcf/0xe0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183]  [<ffffffff815fc76c>] ret_from_fork+0x7c/0xb0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183] bioset          S ffff88003fc14540     0  3054      2 0x00000080
>    [ 7665.841183]  ffff880036e31e20 0000000000000046 ffff880036e31fd8 0000000000014540
>    [ 7665.841183]  ffff880036e31fd8 0000000000014540 ffff8800372a71c0 ffff88003cda4b00
>    [ 7665.841183]  ffff8800372a71c0 ffff88003d538280 0000000000000000 ffff88003cda4b30
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff8107eb6a>] rescuer_thread+0x28a/0x400
>    [ 7665.841183]  [<ffffffff8107e8e0>] ? manage_workers.isra.25+0x2e0/0x2e0
>    [ 7665.841183]  [<ffffffff81085aef>] kthread+0xcf/0xe0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183]  [<ffffffff815fc76c>] ret_from_fork+0x7c/0xb0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183] kworker/u2:2    S ffff88003fc14540     0  3066      2 0x00000080
>    [ 7665.841183]  ffff88003d617e50 0000000000000046 ffff88003d617fd8 0000000000014540
>    [ 7665.841183]  ffff88003d617fd8 0000000000014540 ffff8800372a5b00 ffff88003daad818
>    [ 7665.841183]  ffff88003cda4030 ffff8800372a5b00 ffff88003cda4000 ffff88003daad800
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff815f18c9>] schedule+0x29/0x70
>    [ 7665.841183]  [<ffffffff8107eea9>] worker_thread+0x1c9/0x400
>    [ 7665.841183]  [<ffffffff8107ece0>] ? rescuer_thread+0x400/0x400
>    [ 7665.841183]  [<ffffffff81085aef>] kthread+0xcf/0xe0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183]  [<ffffffff815fc76c>] ret_from_fork+0x7c/0xb0
>    [ 7665.841183]  [<ffffffff81085a20>] ? kthread_create_on_node+0x140/0x140
>    [ 7665.841183] vgreduce        D ffff88003fc14540     0  3078   1872 0x00000080
>    [ 7665.841183]  ffff880036f4b978 0000000000000082 ffff880036f4bfd8 0000000000014540
>    [ 7665.841183]  ffff880036f4bfd8 0000000000014540 ffff88003bbb4440 ffff88003fc14e08
>    [ 7665.841183]  ffff880036f4ba00 0000000000000002 ffffffff811e1190 ffff880036f4b9f0
>    [ 7665.841183] Call Trace:
>    [ 7665.841183]  [<ffffffff811e1190>] ? generic_block_bmap+0x70/0x70
>    [ 7665.841183]  [<ffffffff815f1bed>] io_schedule+0x9d/0x140
>    [ 7665.841183]  [<ffffffff811e119e>] sleep_on_buffer+0xe/0x20
>    [ 7665.841183]  [<ffffffff815efa8b>] __wait_on_bit_lock+0x5b/0xc0
>    [ 7665.841183]  [<ffffffff811e1190>] ? generic_block_bmap+0x70/0x70
>    [ 7665.841183]  [<ffffffff815efb77>] out_of_line_wait_on_bit_lock+0x87/0xb0
>    [ 7665.841183]  [<ffffffff81086af0>] ? autoremove_wake_function+0x40/0x40
>    [ 7665.841183]  [<ffffffff811e25b2>] __lock_buffer+0x32/0x40
>    [ 7665.841183]  [<ffffffffa019796a>] do_get_write_access+0x4da/0x560 [jbd2]
>    [ 7665.841183]  [<ffffffffa01961cc>] ? start_this_handle+0x1cc/0x4d0 [jbd2]
>    [ 7665.841183]  [<ffffffffa01972e2>] ? __jbd2_journal_file_buffer+0xa2/0x250 [jbd2]
>    [ 7665.841183]  [<ffffffff81194e3a>] ? kmem_cache_alloc+0x1ba/0x1d0
>    [ 7665.841183]  [<ffffffffa0197a17>] jbd2_journal_get_write_access+0x27/0x40 [jbd2]
>    [ 7665.841183]  [<ffffffffa01e5c6b>] __ext4_journal_get_write_access+0x3b/0x80 [ext4]
>    [ 7665.841183]  [<ffffffffa01b4f8c>] __ext4_new_inode+0x69c/0x1370 [ext4]
>    [ 7665.841183]  [<ffffffffa01c4908>] ext4_create+0xd8/0x190 [ext4]
>    [ 7665.841183]  [<ffffffff811bee7d>] vfs_create+0xcd/0x130
>    [ 7665.841183]  [<ffffffff811bfa94>] do_last+0xbb4/0x1220
>    [ 7665.841183]  [<ffffffff811685c9>] ? __do_fault+0x419/0x520
>    [ 7665.841183]  [<ffffffff811c01c2>] path_openat+0xc2/0x4c0
>    [ 7665.841183]  [<ffffffff811c0ddb>] do_filp_open+0x4b/0xb0
>    [ 7665.841183]  [<ffffffff811cd5d7>] ? __alloc_fd+0xa7/0x130
>    [ 7665.841183]  [<ffffffff811aec83>] do_sys_open+0xf3/0x1f0
>    [ 7665.841183]  [<ffffffff811aed9e>] SyS_open+0x1e/0x20
>    [ 7665.841183]  [<ffffffff815fc819>] system_call_fastpath+0x16/0x1b
>    [ 7665.841183] Sched Debug Version: v0.11, 3.10.0-116.el7.x86_64 #1
>    [ 7665.841183] ktime                                   : 7670891.063448
>    [ 7665.841183] sched_clk                               : 509844691.225680
>    [ 7665.841183] cpu_clk                                 : 7665841.183919
>    [ 7665.841183] jiffies                                 : 4302333136
>    [ 7665.841183] sched_clock_stable                      : 0
>    [ 7665.841183] 
>    [ 7665.841183] sysctl_sched
>    [ 7665.841183]   .sysctl_sched_latency                    : 6.000000
>    [ 7665.841183]   .sysctl_sched_min_granularity            : 10.000000
>    [ 7665.841183]   .sysctl_sched_wakeup_granularity         : 15.000000
>    [ 7665.841183]   .sysctl_sched_child_runs_first           : 0
>    [ 7665.841183]   .sysctl_sched_features                   : 77435
>    [ 7665.841183]   .sysctl_sched_tunable_scaling            : 1 (logaritmic)
>    [ 7665.841183] 
>    [ 7665.841183] cpu#0, 1999.999 MHz
>    [ 7665.841183]   .nr_running                    : 1
>    [ 7665.841183]   .load                          : 1024
>    [ 7665.841183]   .nr_switches                   : 514776
>    [ 7665.841183]   .nr_load_updates               : 169772
>    [ 7665.841183]   .nr_uninterruptible            : 4
>    [ 7665.841183]   .next_balance                  : 4302.333725
>    [ 7665.841183]   .curr->pid                     : 0
>    [ 7665.841183]   .clock                         : 7665840.290289
>    [ 7665.841183]   .cpu_load[0]                   : 0
>    [ 7665.841183]   .cpu_load[1]                   : 4
>    [ 7665.841183]   .cpu_load[2]                   : 50
>    [ 7665.841183]   .cpu_load[3]                   : 85
>    [ 7665.841183]   .cpu_load[4]                   : 110
>    [ 7665.841183] 
>    [ 7665.841183] cfs_rq[0]:/
>    [ 7665.841183]   .exec_clock                    : 0.000000
>    [ 7665.841183]   .MIN_vruntime                  : 50206.457254
>    [ 7665.841183]   .min_vruntime                  : 50208.648592
>    [ 7665.841183]   .max_vruntime                  : 50206.457254
>    [ 7665.841183]   .spread                        : 0.000000
>    [ 7665.841183]   .spread0                       : 0.000000
>    [ 7665.841183]   .nr_spread_over                : 0
>    [ 7665.841183]   .nr_running                    : 1
>    [ 7665.841183]   .load                          : 1024
>    [ 7665.841183]   .runnable_load_avg             : 2
>    [ 7665.841183]   .blocked_load_avg              : 0
>    [ 7665.841183]   .tg_load_avg                   : 2
>    [ 7665.841183]   .tg_load_contrib               : 2
>    [ 7665.841183]   .tg_runnable_contrib           : 2
>    [ 7665.841183]   .tg->runnable_avg              : 2
>    [ 7665.841183]   .avg->runnable_avg_sum         : 130
>    [ 7665.841183]   .avg->runnable_avg_period      : 47035
>    [ 7665.841183] 
>    [ 7665.841183] rt_rq[0]:/
>    [ 7665.841183]   .rt_nr_running                 : 0
>    [ 7665.841183]   .rt_throttled                  : 0
>    [ 7665.841183]   .rt_time                       : 0.000000
>    [ 7665.841183]   .rt_runtime                    : 950.000000
>    [ 7665.841183] 
>    [ 7665.841183] runnable tasks:
>    [ 7665.841183]             task   PID         tree-key  switches  prio     exec-runtime         sum-exec        sum-sleep
>    [ 7665.841183] ----------------------------------------------------------------------------------------------------------
>    [ 7665.841183]          systemd     1     49218.114463      3585   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]         kthreadd     2     49163.562413       218   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]      ksoftirqd/0     3     50204.627932      3678   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]     kworker/0:0H     5      2004.715076         6   100               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]      migration/0     7         0.000000       137     0               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]           rcu_bh     8        24.983512         2   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]          rcuob/0     9        26.984310         2   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]        rcu_sched    10     50205.705929     16982   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]          rcuos/0    11     50205.710461     10525   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]       watchdog/0    12        -3.000000      1919     0               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]          khelper    13        36.166141         2   100               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]        kdevtmpfs    14     49173.560743       248   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]            netns    15        41.541168         2   100               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]        writeback    16     34494.798058         4   100               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]      kintegrityd    17        51.645240         2   100               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]           bioset    18        53.646247         2   100               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]          kblockd    19        55.648293         2   100               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]            khubd    20       972.657711        42   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]               md    21       137.044352         2   100               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]          kswapd0    24       455.089525         3   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]             ksmd    25       356.176564         2   125               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]       khugepaged    26     50206.171710       773   139               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]    fsnotify_mark    27     49173.549557       110   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]           crypto    28       364.564863         2   100               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]         kthrotld    37       384.207671         2   100               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]     kmpath_rdacd    39       442.702448         2   100               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]        kpsmoused    40       484.068874         2   100               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]          deferwq    59     37062.796600         6   100               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]          kauditd    88     49203.723406       529   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]          ata_sff   211       917.189461         2   100               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]        scsi_eh_0   212       964.965686         4   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]       scsi_tmf_0   213       919.163810         2   100               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]        scsi_eh_1   215       964.237086         4   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]       scsi_tmf_1   216       920.675330         2   100               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]        scsi_eh_2   218       920.750181         2   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]         ttm_swap   220       921.426671         2   100               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]       scsi_tmf_2   222       921.516192         2   100               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]         kdmflush   364      1162.621704         2   100               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]      jbd2/dm-3-8   396     49923.832579       624   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]  ext4-dio-unwrit   397      1238.081369         2   100               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]             bash   463      1700.427847        63   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]  systemd-journal   465     50210.689855       983   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]          lvmetad   474     50098.793753       114   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]          lvmetad  2197     16198.508009        27   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]          lvmetad  2429     22185.239790        28   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]          lvmetad  2657     34654.179574        27   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]          lvmetad  2847     39930.629615        33   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]          lvmetad  2974     50083.090181        45   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]          lvmetad  3079     50114.103033         5   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]    systemd-udevd   493     49529.351604      1391   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]         dmeventd   508     50205.649481      7935   102               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]         dmeventd  2943     50114.102348      2384   102               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]         dmeventd  3056     47095.111903         1   102               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]         vballoon   522      1761.338369         2   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]         kdmflush   542      1774.205833         2   100               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]           bioset   543      1774.323811         2   100               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]      jbd2/vda1-8   559      1791.489799         2   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]  ext4-dio-unwrit   560      1793.492011         2   100               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]           auditd   563     50179.390015       592   116               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]           auditd   575     49203.724941       532   116               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]            tuned   596     37700.886774       487   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]            gmain   810      2621.566909         2   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]            tuned   811      2623.206246        14   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]            tuned   812     50205.758155      7729   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]            tuned   813     49194.171981       263   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]     avahi-daemon   597     35346.410183       424   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]   NetworkManager   599     50142.595884      1585   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]   NetworkManager   633      1958.632177         1   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]            gdbus   636     17820.888104       256   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]            gmain   675      2537.992290         2   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]         rsyslogd   601      1951.340103        29   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]     in:imjournal   630     50208.648592      2027   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]    rs:main Q:Reg   631     49718.597398      1995   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]      dbus-daemon   604     50142.697392      1623   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]   systemd-logind   605     49203.767666       755   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]            crond   606     50206.054222       144   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]     avahi-daemon   608      1935.227549         4   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]          iprinit   623     49173.978757       375   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]        iprupdate   626     49173.979711       373   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]          polkitd   638     35195.878493       460   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]            gdbus   642     35196.178553       397   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]     JS GC Helper   644      1982.770974         2   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]  JS Sour~ Thread   645      1992.494284         5   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]  runaway-killer-   649      3034.005093         7   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]            gmain   650      1998.490524         1   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]          iprdump   646     49173.981321       353   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]     kworker/0:1H   652     48349.158306       254   100               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]         dhclient   806     35194.563252        60   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]             sshd   858     16917.433258       139   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]        rhsmcertd   861     10108.716581         6   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]           agetty   873      9620.489549         5   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]            login   874     10411.054804        23   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]           master  1472     50180.163875       310   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]             qmgr  1483     50116.566717        45   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]             bash  1872     50091.540594      1917   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]           sysfsd  2185     16037.638830         2   100               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]      kworker/0:1  2502     43592.753872      1231   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]     kworker/u2:1  2651     49979.663787       123   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]           pickup  2708     50180.089213        28   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]     kworker/u2:0  2745     49173.558521        16   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]      kworker/0:2  2758     50206.457254     59356   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]      kworker/0:3  2860     49535.075188       794   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]         kdmflush  3033     46983.300106         2   100               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]           bioset  3035     46993.303221         2   100               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]         kdmflush  3037     47003.303564         2   100               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]           bioset  3039     47013.305411         2   100               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]         kdmflush  3042     47023.306157         2   100               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]           bioset  3044     47033.308259         2   100               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]           bioset  3046     47043.308150         2   100               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]           bioset  3048     47053.308493         2   100               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]         kmirrord  3050     47063.309200         2   100               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]           kcopyd  3052     47073.309564         2   100               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]           bioset  3053     47083.311818         2   100               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]           bioset  3054     47093.311896         2   100               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]     kworker/u2:2  3066     49176.551834         2   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183]         vgreduce  3078     50122.142926         8   120               0               0               0.000000               0.000000               0.000000 0 /
>    [ 7665.841183] 
>
>- after power cycling the machine is unresponsive not telling what's going on - seems the mirror is being synchronized in BG without any indication on console:
>
>	     Starting Create static device nodes in /dev...
>    [[32m  OK  [0m] Started Create static device nodes in /dev.
>    [[32m  OK  [0m] Started dracut cmdline hook.
>	     Starting dracut pre-udev hook...
>    [    1.242431] device-mapper: uevent: version 1.0.3
>    [    1.244427] device-mapper: ioctl: 4.27.0-ioctl (2013-10-30) initialised: dm-devel@redhat.com
>    [[32m  OK  [0m] Started dracut pre-udev hook.
>	     Starting udev Kernel Device Manager...
>    [[32m  OK  [0m] Started udev Kernel Device Manager.
>	     Starting udev Coldplug all Devices...
>    [    1.283530] systemd-udevd[189]: starting version 208
>	     Mounting Configuration File System...
>    [[32m  OK  [0m] Mounted Configuration File System.
>    [[32m  OK  [0m] Started udev Coldplug all Devices.
>	     Starting dracut initqueue hook...
>	     Starting Show Plymouth Boot Screen...[    1.369208] ACPI: PCI Interrupt Link [LNKC] enabled at IRQ 10
>    [    1.381443] FDC 0 is a S82078B
>    
>    [[32m  OK  [0m] Reached target System Initialization.[    1.388411] ACPI: PCI Interrupt Link [LNKA] enabled at IRQ 10
>    
>    [    1.404617] ACPI: PCI Interrupt Link [LNKB] enabled at IRQ 11
>    [    1.409648] [drm] Initialized drm 1.1.0 20060810
>    [    1.434463] ACPI: bus type ATA registered
>    [[32m  OK  [0m] Started Show Plymouth Boot Screen.

>    [[32m  OK  [0m] Reached target Paths.

>    [[32m  OK  [0m] Reached target Basic System.

>    [    1.487974] scsi0 : ata_piix
>    [    1.496108] tsc: Refined TSC clocksource calibration: 2000.021 MHz
>    [    1.503585] scsi2 : ata_piix
>    [    1.505286] ata1: PATA max MWDMA2 cmd 0x1f0 ctl 0x3f6 bmdma 0xc000 irq 14
>    [    1.507804] ata2: PATA max MWDMA2 cmd 0x170 ctl 0x376 bmdma 0xc008 irq 15
>    [    1.517915] usb 1-1: New USB device found, idVendor=0627, idProduct=0001
>    [    1.517916] usb 1-1: New USB device strings: Mfr=1, Product=3, SerialNumber=5
>    [    1.517918] usb 1-1: Product: QEMU USB Tablet
>    [    1.517919] usb 1-1: Manufacturer: QEMU 0.12.1
>    [    1.517920] usb 1-1: SerialNumber: 42
>    [    1.518706] [TTM] Zone  kernel: Available graphics memory: 508948 kiB
>    [    1.518707] [TTM] Initializing pool allocator
>    [    1.518711] [TTM] Initializing DMA pool allocator
>    [    1.519187] [drm] fb mappable at 0x0
>    [    1.519187] [drm] vram aper at 0x0
>    [    1.519188] [drm] size 0
>    [    1.519188] [drm] fb depth is 24
>    [    1.519189] [drm]    pitch is 3840
>    [    1.549405] fbcon: cirrusdrmfb (fb0) is primary device
>    [    1.560369] input: ImExPS/2 Generic Explorer Mouse as /devices/platform/i8042/serio1/input/input1
>    [    1.560809] input: AT Translated Set 2 keyboard as /devices/platform/i8042/serio0/input/input2
>    [    1.562940]  vda: vda1 vda2
>    [    1.649172] Console: switching to colour frame buffer device 160x64
>    [    1.655668] scsi1 : Virtio SCSI HBA
>    [    1.656046] scsi 1:0:0:0: Direct-Access     QEMU     QEMU HARDDISK    0.12 PQ: 0 ANSI: 5
>    [    1.656123] scsi 1:0:0:2: Direct-Access     QEMU     QEMU HARDDISK    0.12 PQ: 0 ANSI: 5
>    [    1.656169] scsi 1:0:0:1: Direct-Access     QEMU     QEMU HARDDISK    0.12 PQ: 0 ANSI: 5
>    [    1.706751] cirrus 0000:00:02.0: fb0: cirrusdrmfb frame buffer device
>    [    1.706753] cirrus 0000:00:02.0: registered panic notifier
>    [    1.710142] [drm] Initialized cirrus 1.0.0 20110418 for 0000:00:02.0 on minor 0
>    [    1.742368]  vdb: unknown partition table
>    [    1.747767] input: QEMU 0.12.1 QEMU USB Tablet as /devices/pci0000:00/0000:00:01.2/usb1/1-1/1-1:1.0/input/input3
>    [    1.749868] hid-generic 0003:0627:0001.0001: input,hidraw0: USB HID v0.01 Pointer [QEMU 0.12.1 QEMU USB Tablet] on usb-0000:00:01.2-1/input0
>    [    1.787393] sd 1:0:0:0: [sda] 16777216 512-byte logical blocks: (8.58 GB/8.00 GiB)
>    [    1.789325] sd 1:0:0:0: [sda] Write Protect is off
>    [    1.790728] sd 1:0:0:2: [sdb] 16777216 512-byte logical blocks: (8.58 GB/8.00 GiB)
>    [    1.855108] sd 1:0:0:1: [sdc] 16777216 512-byte logical blocks: (8.58 GB/8.00 GiB)
>    [    1.858173] sd 1:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
>    [    1.866075]  sda: sda1
>    [    1.867662] sd 1:0:0:1: [sdc] Write Protect is off
>    [    1.870386] sd 1:0:0:0: [sda] Attached SCSI disk
>    [    1.871488] sd 1:0:0:1: [sdc] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
>    [    1.874764]  sdc: sdc1
>    [    1.875997] sd 1:0:0:1: [sdc] Attached SCSI disk
>    [    1.917804] sd 1:0:0:2: [sdb] Write Protect is off
>    [    1.919104] sd 1:0:0:2: [sdb] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
>    [    1.921686]  sdb: sdb1
>    [    1.922572] sd 1:0:0:2: [sdb] Attached SCSI disk
>
>And after a while:
>
>    dracut-initqueue[207]: Warning: Could not boot.

>    [[32m  OK  [0m] Started Show Plymouth Boot Screen.

>    [[32m  OK  [0m] Reached target Paths.

>    [[32m  OK  [0m] Reached target Basic System.

>    dracut-initqueue[207]: Warning: Could not boot.

>    dracut-initqueue[207]: Warning: /dev/vg_stacked/lv_master does not exist
>	     Starting Dracut Emergency Shell...
>    Warning: /dev/vg_stacked/lv_master does not exist
>    
>    Generating "/run/initramfs/rdsosreport.txt"
>    
>    
>    Entering emergency mode. Exit the shell to continue.
>    Type "journalctl" to view system logs.
>    You might want to save "/run/initramfs/rdsosreport.txt" to a USB stick or /boot
>    after mounting them and attach it to a bug report.
>    
>    
>    dracut:/# lvm lvs
>      Read-only locking type set. Write locks are prohibited.
>      Recovery of volume group "vg_stacked" failed.
>      Internal error: Attempt to unlock unlocked VG vg_stacked.
>      Skipping volume group vg_stacked
>      LV   VG              Attr       LSize Pool Origin Data%  Move Log Cpy%Sync Convert
>      root vg_stacker_z3n3 -wi------- 6.00g                                             
>    dracut:/# lvm pvs
>      WARNING: Volume Group vg_stacked is not consistent
>      PV         VG              Fmt  Attr PSize PFree
>      /dev/sda1  vg_stacked      lvm2 a-m  8.00g 4.00g
>      /dev/sdb1  vg_stacked      lvm2 a--  8.00g 3.99g
>      /dev/sdc1  vg_stacked      lvm2 a-m  8.00g 8.00g
>      /dev/vdb   vg_stacker_z3n3 lvm2 a--  8.00g 2.00g
>
>(After rebooting to sane image the mirror is automatically repaired and next reboot to damaged system succeeds - the locking is not ro anymore and systemd handles the situation gracefully.)
>
>So now I will describe what I have done... And I need to find out what should be done.
>
>I visited /lvm/lvm.conf and changed locking_type from 4 to 1 and now I can attempt to fix the VG...
>
>I have run `vgreduce --removemissing` and got this:
>
>    WARNING: Inconsistent metadata found for VG vg_stacked - updating to use version 77
>    WARNING: Partial LV lv_master needs to be repaired or removed
>    WARNING: Parial LV lv_master_mimage_0 needs to be repaired or removed
>    There are still partial LVs in VG vg_stacked.
>    To remove them unconditionally use: vgreduce --removemissing --force.
>    Proceeding to remove empty missing PVs.
>
>Run `lvm lvs -ao+devices`:
>    LV                   VG         Attr       LSize Pool Origin Data%  Move Log            Cpy%Sync Convert Devices
>    lv_master            vg_stacked mwi---m-p- 4.00g                         lv_master_mlog                  lv_master_mimage_0(0),lv_master_mimage_1(0)
>    [lv_master_mimage_0] vg_stacked Iwi---m--- 4.00g                                                         /dev/sdb1(0)
>    [lv_master_mimage_1] vg_stacked Iwi---m-p- 4.00g                                                         /dev/sda1(0)
>    [lv_master_mlog]     vg_stacked lwi---m--- 4.00m                                                         /dev/sdb1(1025)
>
>Now I have run `lvm lvchange -ay --partial vg_stacked/lv_master` which may not have been the best idea as LVM started to synchronize to "missing" PV :-/
>
>    PARTIAL MODE. Incomplete logical volumes will be processed.
>
>Now it is in sync and though everything still in partial mode it boots but I am sure there will be issues with it sooner or later.
>
>So I have booted and run `lvconvert --repair vg_stacked/lv_master` and it is now repairing :-)
>The repair has passed and the "missing" PV was unmissed:
>
>    + lvs
>    Missing device /dev/sda1 reappeared, updating metadata for VG vg_stacked to version 87.
>
>But the device was present all the time and the mirror was even synchronized to the PV.

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Attachments on bug 1090471: 888887