Attachment 861651 Details for Bug 1062439 – dmesg 3.14.0-0.rc1.git5.1 btrfs & scsi

dmesg 3.14.0-0.rc1.git5.1 btrfs & scsi

dmesg-3.14.0-0.rc1.git5.1.fc21.1.x86_64 (text/plain), 59.97 KB, created by poma on 2014-02-11 03:13:29 UTC

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Creator: poma

Created: 2014-02-11 03:13:29 UTC

Size: 59.97 KB

patch

obsolete

>
>[    1.434970] systemd[1]: Listening on Journal Socket.
>[    1.435703] systemd[1]: Starting dracut cmdline hook...
>[    1.438200] systemd[1]: Starting Create list of required static device nodes for the current kernel...
>[    1.441129] systemd[1]: Starting Journal Service...
>[    1.452684] systemd[1]: Started Journal Service.
>[    1.477184] systemd-journald[72]: Vacuuming done, freed 0 bytes
>[    1.482391] usb 1-1: new high-speed USB device number 2 using ehci-pci
>[    1.605757] usb 1-1: New USB device found, idVendor=0627, idProduct=0001
>[    1.606629] usb 1-1: New USB device strings: Mfr=1, Product=3, SerialNumber=5
>[    1.607292] usb 1-1: Product: QEMU USB Tablet
>[    1.607823] usb 1-1: Manufacturer: QEMU
>[    1.608458] usb 1-1: SerialNumber: 42
>[    1.609220] loop: module loaded
>[    1.617610] input: QEMU QEMU USB Tablet as /devices/pci0000:00/0000:00:05.7/usb1/1-1/1-1:1.0/0003:0627:0001.0001/input/input4
>[    1.621492] hid-generic 0003:0627:0001.0001: input,hidraw0: USB HID v0.01 Pointer [QEMU QEMU USB Tablet] on usb-0000:00:05.7-1/input0
>[    1.927896] RPC: Registered named UNIX socket transport module.
>[    1.928380] RPC: Registered udp transport module.
>[    1.928753] RPC: Registered tcp transport module.
>[    1.929195] RPC: Registered tcp NFSv4.1 backchannel transport module.
>[    1.930226] modprobe (227) used greatest stack depth: 4984 bytes left
>[    2.010674] rpc.statd (236) used greatest stack depth: 4968 bytes left
>[    2.053883] input: ImExPS/2 Generic Explorer Mouse as /devices/platform/i8042/serio1/input/input3
>[    2.108149] systemd-udevd[264]: starting version 208
>[    2.509272] [drm] Initialized drm 1.1.0 20060810
>[    2.543761] sym0: <895a> rev 0x0 at pci 0000:00:07.0 irq 11
>[    2.555245] cdrom_id (361) used greatest stack depth: 3808 bytes left
>[    2.559384] sym0: No NVRAM, ID 7, Fast-40, LVD, parity checking
>[    2.560563] sym0: SCSI BUS has been reset.
>[    2.569376] scsi2 : sym-2.2.3
>[    2.594994] [drm] Device Version 0.0
>[    2.595389] [drm] Compression level 0 log level 0
>[    2.595730] [drm] Currently using mode #0, list at 0x488
>[    2.596123] [drm] 12286 io pages at offset 0x1000000
>[    2.596472] [drm] 16777216 byte draw area at offset 0x0
>[    2.596845] [drm] RAM header offset: 0x3ffe000
>[    2.597236] [drm] rom modes offset 0x488 for 128 modes
>[    2.602779] [TTM] Zone  kernel: Available graphics memory: 1016368 kiB
>[    2.603222] [TTM] Initializing pool allocator
>[    2.603708] [TTM] Initializing DMA pool allocator
>[    2.606465] [drm] qxl: 16M of VRAM memory size
>[    2.606811] [drm] qxl: 63M of IO pages memory ready (VRAM domain)
>[    2.607212] [drm] qxl: 64M of Surface memory size
>[    2.643894] sym0: unknown interrupt(s) ignored, ISTAT=0x1 DSTAT=0x80 SIST=0x0
>[    2.647329] virtio-pci 0000:00:03.0: irq 40 for MSI/MSI-X
>[    2.647357] virtio-pci 0000:00:03.0: irq 41 for MSI/MSI-X
>[    2.647382] virtio-pci 0000:00:03.0: irq 42 for MSI/MSI-X
>[    2.667460] [drm] main mem slot 1 [f4000000,3ffe000]
>[    2.667891] [drm] surface mem slot 2 [f8000000,4000000]
>[    2.671902] [drm] fb mappable at 0xF4000000, size 3145728
>[    2.672388] [drm] fb: depth 24, pitch 4096, width 1024, height 768
>[    2.674384] fbcon: qxldrmfb (fb0) is primary device
>[    2.709554] Console: switching to colour frame buffer device 128x48
>[    2.723975] qxl 0000:00:02.0: fb0: qxldrmfb frame buffer device
>[    2.723976] qxl 0000:00:02.0: registered panic notifier
>[    2.725380] [drm] Initialized qxl 0.1.0 20120117 for 0000:00:02.0 on minor 0
>[    5.575666] scsi 2:0:0:0: Direct-Access     QEMU     QEMU HARDDISK    1.6. PQ: 0 ANSI: 5
>[    5.575741] scsi target2:0:0: tagged command queuing enabled, command queue depth 16.
>[    5.575983] scsi target2:0:0: Beginning Domain Validation
>[    5.579359] scsi target2:0:0: Domain Validation skipping write tests
>[    5.579374] scsi target2:0:0: Ending Domain Validation
>[    5.587428] sd 2:0:0:0: [sda] 16777216 512-byte logical blocks: (8.58 GB/8.00 GiB)
>[    5.587507] sd 2:0:0:0: Attached scsi generic sg1 type 0
>[    5.589253] sd 2:0:0:0: [sda] Write Protect is off
>[    5.589266] sd 2:0:0:0: [sda] Mode Sense: 63 00 00 08
>[    5.589435] sd 2:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
>[    5.593376]  sda: sda1 sda2 sda3
>[    5.595872] sd 2:0:0:0: [sda] Attached SCSI disk
>[    5.685034] raid6: sse2x1    3757 MB/s
>[    5.702034] raid6: sse2x2    6484 MB/s
>[    5.719128] raid6: sse2x4    6128 MB/s
>[    5.719137] raid6: using algorithm sse2x2 (6484 MB/s)
>[    5.719215] raid6: using intx1 recovery algorithm
>[    5.723162] xor: measuring software checksum speed
>[    5.733021]    prefetch64-sse: 12796.000 MB/sec
>[    5.743015]    generic_sse: 12152.000 MB/sec
>[    5.743081] xor: using function: prefetch64-sse (12796.000 MB/sec)
>[    5.766264] bio: create slab <bio-1> at 1
>[    5.769463] Btrfs loaded
>[    5.771467] BTRFS: device label fedora00 devid 1 transid 16 /dev/sda3
>[    5.930083] squashfs: version 4.0 (2009/01/31) Phillip Lougher
>[    5.968111] ISO 9660 Extensions: Microsoft Joliet Level 3
>[    5.975680] ISO 9660 Extensions: RRIP_1991A
>[    6.128607] bio: create slab <bio-2> at 2
>[    6.166863] bio: create slab <bio-3> at 3
>[    6.536154] EXT4-fs (dm-0): mounted filesystem with ordered data mode. Opts: (null)
>[    6.799771] random: nonblocking pool is initialized
>[    6.885337] systemd-udevd (346) used greatest stack depth: 2088 bytes left
>[    6.939128] systemd-journald[72]: Received SIGTERM
>[    8.725193] EXT4-fs (dm-0): re-mounted. Opts: (null)
>[    8.757964] Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
>[    9.089787] systemd-journald[635]: Vacuuming done, freed 0 bytes
>[    9.237761] systemd-udevd[644]: starting version 208
>[    9.662915] piix4_smbus 0000:00:01.3: SMBus Host Controller at 0xb100, revision 0
>[    9.720400] parport_pc 00:04: reported by Plug and Play ACPI
>[    9.799909] virtio-pci 0000:00:06.0: irq 43 for MSI/MSI-X
>[    9.799935] virtio-pci 0000:00:06.0: irq 44 for MSI/MSI-X
>[    9.970426] systemd-journald[635]: Received request to flush runtime journal from PID 1
>[   10.094529] microcode: AMD CPU family 0xf not supported
>[   10.291193] audit: type=1305 audit(1392086625.549:2): audit_pid=672 old=0 auid=4294967295 ses=4294967295 res=1
>[   10.295985] has_svm: can't execute cpuid_8000000a
>[   10.295986] kvm: no hardware support
>[   10.305295] snd_hda_intel 0000:00:04.0: irq 45 for MSI/MSI-X
>[   10.313308] powernow-k8: Power state transitions not supported
>[   10.313322] powernow-k8: Power state transitions not supported
>[   10.335402] hda-codec: No codec parser is available
>[   10.344644] has_svm: can't execute cpuid_8000000a
>[   10.344645] kvm: no hardware support
>[   10.375180] powernow-k8: Power state transitions not supported
>[   10.375223] powernow-k8: Power state transitions not supported
>[   10.500848] BTRFS: device label fedora00 devid 1 transid 16 /dev/sda3
>[   10.562229] ppdev: user-space parallel port driver
>[   10.631093] systemd-journald[635]: Received request to flush runtime journal from PID 1
>[   12.262136] Adding 1048572k swap on /dev/sda2.  Priority:-1 extents:1 across:1048572k FS
>[   14.319824] nf_conntrack version 0.5.0 (16384 buckets, 65536 max)
>[   14.454739] ip6_tables: (C) 2000-2006 Netfilter Core Team
>[   14.890568] Ebtables v2.0 registered
>[   15.086894] Bridge firewalling registered
>[   16.116537] cfg80211: Calling CRDA to update world regulatory domain
>[   16.123770] cfg80211: World regulatory domain updated:
>[   16.123775] cfg80211:  DFS Master region: unset
>[   16.123777] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
>[   16.123779] cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz), (N/A, 2000 mBm)
>[   16.123780] cfg80211:   (2457000 KHz - 2482000 KHz @ 40000 KHz), (N/A, 2000 mBm)
>[   16.123782] cfg80211:   (2474000 KHz - 2494000 KHz @ 20000 KHz), (N/A, 2000 mBm)
>[   16.123783] cfg80211:   (5170000 KHz - 5250000 KHz @ 80000 KHz), (N/A, 2000 mBm)
>[   16.123785] cfg80211:   (5735000 KHz - 5835000 KHz @ 80000 KHz), (N/A, 2000 mBm)
>[   16.123786] cfg80211:   (57240000 KHz - 63720000 KHz @ 2160000 KHz), (N/A, 0 mBm)
>[   19.606636] input: spice vdagent tablet as /devices/virtual/input/input5
>[   29.120965] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
>[   31.851307] md: raid0 personality registered for level 0
>[   31.864587] md: raid1 personality registered for level 1
>[   31.876831] async_tx: api initialized (async)
>[   31.901621] md: raid6 personality registered for level 6
>[   31.901627] md: raid5 personality registered for level 5
>[   31.901630] md: raid4 personality registered for level 4
>[   31.917986] md: raid10 personality registered for level 10
>[   31.956976] device-mapper: multipath: version 1.6.0 loaded
>[   31.965134] device-mapper: multipath round-robin: version 1.0.0 loaded
>[   32.023315] sha256_ssse3: Neither AVX nor SSSE3 is available/usable.
>[   32.056649] Loading iSCSI transport class v2.0-870.
>[   32.090340] iscsi: registered transport (tcp)
>[   32.100973] No iBFT detected.
>[   32.872822] BTRFS: device label fedora00 devid 1 transid 16 /dev/sda3
>[   33.336903] BTRFS: device label fedora00 devid 1 transid 16 /dev/sda3
>[   33.356262] BTRFS: device label fedora00 devid 1 transid 16 /dev/sda3
>[   33.370852] BTRFS info (device sda3): disk space caching is enabled
>[   36.547649] BTRFS: device label fedora00 devid 1 transid 17 /dev/sda3
>[   39.076379] BTRFS: device label fedora00 devid 1 transid 17 /dev/sda3
>[   39.124229] BTRFS: device label fedora00 devid 1 transid 17 /dev/sda3
>[   39.137847] BTRFS info (device sda3): disk space caching is enabled
>[   41.184805] EXT4-fs (sda1): mounted filesystem with ordered data mode. Opts: (null)
>[   41.345914] BTRFS: device label fedora00 devid 1 transid 18 /dev/sda3
>[   41.358824] BTRFS info (device sda3): disk space caching is enabled
>[   42.561827] EXT4-fs (dm-1): mounted filesystem with ordered data mode. Opts: (null)
>[   54.843369] SGI XFS with ACLs, security attributes, large block/inode numbers, no debug enabled
>[   86.776555] BTRFS: device label fedora00 devid 1 transid 18 /dev/sda3
>[   86.791069] BTRFS info (device sda3): disk space caching is enabled
>[   92.304287] sym0: SCSI phase error fixup: CCB already dequeued.
>[   92.306644] sym0: SCSI BUS reset detected.
>[   92.307612] sym0: SCSI BUS has been reset.
>[   92.686792] sym0: unknown interrupt(s) ignored, ISTAT=0x1 DSTAT=0x80 SIST=0x0
>[   95.757898] sym0: SCSI phase error fixup: CCB already dequeued.
>[   95.760304] sym0: SCSI BUS reset detected.
>[   95.761248] sym0: SCSI BUS has been reset.
>[   95.872659] sym0: unknown interrupt(s) ignored, ISTAT=0x1 DSTAT=0x80 SIST=0x0
>[   99.445207] BTRFS: device label fedora devid 1 transid 4 /dev/sda3
>[   99.662501] BTRFS: device label fedora devid 1 transid 4 /dev/sda3
>[   99.677351] BTRFS info (device sda3): disk space caching is enabled
>[   99.677357] BTRFS: flagging fs with big metadata feature
>[   99.688097] BTRFS: creating UUID tree
>[  100.240381] BTRFS: device label fedora devid 1 transid 7 /dev/sda3
>[  100.256868] BTRFS info (device sda3): disk space caching is enabled
>[  101.125301] Adding 838652k swap on /dev/sda2.  Priority:-1 extents:1 across:838652k FS
>[  101.221178] BTRFS: device label fedora devid 1 transid 9 /dev/sda3
>[  101.235711] BTRFS info (device sda3): disk space caching is enabled
>[  101.306627] EXT4-fs (sda1): mounted filesystem with ordered data mode. Opts: (null)
>[  101.455583] BTRFS: device label fedora devid 1 transid 9 /dev/sda3
>[  105.227759] ------------[ cut here ]------------
>[  105.227770] WARNING: CPU: 1 PID: 2258 at lib/dma-debug.c:491 add_dma_entry+0x127/0x130()
>[  105.227772] DMA-API: exceeded 7 overlapping mappings of pfn 2137
>[  105.227773] Modules linked in: xfs libcrc32c fcoe libfcoe libfc scsi_transport_fc scsi_tgt iscsi_ibft iscsi_boot_sysfs iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi dm_crypt vfat fat dm_round_robin dm_multipath raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx raid1 raid0 uinput ip6t_rpfilter ip6t_REJECT xt_conntrack cfg80211 rfkill ebtable_nat ebtable_broute bridge stp llc ebtable_filter ebtables ip6table_nat nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6 ip6table_mangle ip6table_security ip6table_raw ip6table_filter ip6_tables iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack iptable_mangle iptable_security iptable_raw ppdev snd_hda_intel kvm snd_hda_codec snd_hwdep snd_seq joydev snd_seq_device snd_pcm serio_raw virtio_console parport_pc
>[  105.227812]  parport pvpanic snd_timer i2c_piix4 snd soundcore nfsd auth_rpcgss nfs_acl lockd isofs squashfs btrfs xor raid6_pq virtio_balloon virtio_net qxl drm_kms_helper sym53c8xx scsi_transport_spi ttm virtio_pci drm virtio_ring virtio i2c_core ata_generic pata_acpi sunrpc loop
>[  105.227831] CPU: 1 PID: 2258 Comm: ext4lazyinit Not tainted 3.14.0-0.rc1.git5.1.fc21.1.x86_64 #1
>[  105.227833] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
>[  105.227835]  0000000000000000 000000008f960c67 ffff880076c51838 ffffffff817cf05d
>[  105.227838]  ffff880076c51880 ffff880076c51870 ffffffff810966cd 0000000000002137
>[  105.227840]  ffff88007913db40 0000000000000096 ffffffff82d64e00 0000000000000096
>[  105.227843] Call Trace:
>[  105.227848]  [<ffffffff817cf05d>] dump_stack+0x4d/0x66
>[  105.227852]  [<ffffffff810966cd>] warn_slowpath_common+0x7d/0xa0
>[  105.227854]  [<ffffffff8109674c>] warn_slowpath_fmt+0x5c/0x80
>[  105.227856]  [<ffffffff813f363d>] ? active_pfn_read_overlap+0x2d/0x50
>[  105.227859]  [<ffffffff813f3c07>] add_dma_entry+0x127/0x130
>[  105.227861]  [<ffffffff813f42dd>] debug_dma_map_sg+0x13d/0x180
>[  105.227864]  [<ffffffff815259d0>] scsi_dma_map+0xf0/0x130
>[  105.227875]  [<ffffffffa0113ef9>] sym_setup_data_and_start+0x79/0x270 [sym53c8xx]
>[  105.227883]  [<ffffffffa01149fc>] ? sym_prepare_nego+0x2bc/0x2f0 [sym53c8xx]
>[  105.227892]  [<ffffffffa0119d91>] sym_queue_scsiio+0x181/0x2d0 [sym53c8xx]
>[  105.227901]  [<ffffffffa0112cda>] sym53c8xx_queue_command+0xfa/0x150 [sym53c8xx]
>[  105.227903]  [<ffffffff8151b807>] scsi_dispatch_cmd+0xb7/0x4e0
>[  105.227905]  [<ffffffff81523c5c>] scsi_request_fn+0x33c/0x540
>[  105.227909]  [<ffffffff813955f3>] __blk_run_queue+0x33/0x40
>[  105.227911]  [<ffffffff8139b813>] blk_queue_bio+0x343/0x4d0
>[  105.227913]  [<ffffffff81395410>] generic_make_request+0xe0/0x130
>[  105.227916]  [<ffffffff813954d8>] submit_bio+0x78/0x160
>[  105.227919]  [<ffffffff812734fe>] ? bio_alloc_bioset+0x1ce/0x2f0
>[  105.227922]  [<ffffffff813a2cf3>] blkdev_issue_write_same+0x183/0x2b0
>[  105.227925]  [<ffffffff813a3117>] blkdev_issue_zeroout+0x97/0xf0
>[  105.227929]  [<ffffffff81303c9e>] ? __ext4_journal_get_write_access+0x4e/0x90
>[  105.227932]  [<ffffffff812ccb1c>] ext4_init_inode_table+0x17c/0x3c0
>[  105.227935]  [<ffffffff812e1f39>] ? ext4_lazyinit_thread+0xb9/0x320
>[  105.227938]  [<ffffffff812e212d>] ext4_lazyinit_thread+0x2ad/0x320
>[  105.227940]  [<ffffffff812e1e80>] ? ext4_unregister_li_request+0x70/0x70
>[  105.227943]  [<ffffffff810c42ef>] kthread+0xff/0x120
>[  105.227945]  [<ffffffff810c41f0>] ? insert_kthread_work+0x80/0x80
>[  105.227948]  [<ffffffff817e2dfc>] ret_from_fork+0x7c/0xb0
>[  105.227950]  [<ffffffff810c41f0>] ? insert_kthread_work+0x80/0x80
>[  105.227952] ---[ end trace 5a9768150bca5245 ]---
>[  105.228581] ------------[ cut here ]------------
>[  105.228581] WARNING: CPU: 1 PID: 2258 at lib/dma-debug.c:1041 check_unmap+0x8b7/0x9b0()
>[  105.228581] sym53c8xx 0000:00:07.0: DMA-API: device driver tries to free DMA memory it has not allocated [device address=0x0000000002137000] [size=512 bytes]
>[  105.228581] Modules linked in: xfs libcrc32c fcoe libfcoe libfc scsi_transport_fc scsi_tgt iscsi_ibft iscsi_boot_sysfs iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi dm_crypt vfat fat dm_round_robin dm_multipath raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx raid1 raid0 uinput ip6t_rpfilter ip6t_REJECT xt_conntrack cfg80211 rfkill ebtable_nat ebtable_broute bridge stp llc ebtable_filter ebtables ip6table_nat nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6 ip6table_mangle ip6table_security ip6table_raw ip6table_filter ip6_tables iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack iptable_mangle iptable_security iptable_raw ppdev snd_hda_intel kvm snd_hda_codec snd_hwdep snd_seq joydev snd_seq_device snd_pcm serio_raw virtio_console parport_pc
>[  105.228581]  parport pvpanic snd_timer i2c_piix4 snd soundcore nfsd auth_rpcgss nfs_acl lockd isofs squashfs btrfs xor raid6_pq virtio_balloon virtio_net qxl drm_kms_helper sym53c8xx scsi_transport_spi ttm virtio_pci drm virtio_ring virtio i2c_core ata_generic pata_acpi sunrpc loop
>[  105.228581] CPU: 1 PID: 2258 Comm: ext4lazyinit Tainted: G        W    3.14.0-0.rc1.git5.1.fc21.1.x86_64 #1
>[  105.228581] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
>[  105.228581]  0000000000000000 000000008f960c67 ffff880076c51750 ffffffff817cf05d
>[  105.228581]  ffff880076c51798 ffff880076c51788 ffffffff810966cd ffff880079df5b90
>[  105.228581]  0000000000000200 0000000002137000 0000000002137000 0000000087654321
>[  105.228581] Call Trace:
>[  105.228581]  [<ffffffff817cf05d>] dump_stack+0x4d/0x66
>[  105.228581]  [<ffffffff810966cd>] warn_slowpath_common+0x7d/0xa0
>[  105.228581]  [<ffffffff8109674c>] warn_slowpath_fmt+0x5c/0x80
>[  105.228581]  [<ffffffff813f336c>] ? debug_dma_mapping_error+0x7c/0x90
>[  105.228581]  [<ffffffff813f4bd7>] check_unmap+0x8b7/0x9b0
>[  105.228581]  [<ffffffff810f4e7d>] ? trace_hardirqs_off+0xd/0x10
>[  105.228581]  [<ffffffff817d827f>] ? _raw_spin_unlock_irqrestore+0x5f/0x70
>[  105.228581]  [<ffffffff813f4ec5>] debug_dma_unmap_sg+0xb5/0x1a0
>[  105.228581]  [<ffffffff815258a3>] scsi_dma_unmap+0x73/0xb0
>[  105.228581]  [<ffffffffa0113b96>] sym_xpt_done+0x26/0x40 [sym53c8xx]
>[  105.228581]  [<ffffffffa0114069>] sym_setup_data_and_start+0x1e9/0x270 [sym53c8xx]
>[  105.228581]  [<ffffffffa0119d91>] sym_queue_scsiio+0x181/0x2d0 [sym53c8xx]
>[  105.228581]  [<ffffffffa0112cda>] sym53c8xx_queue_command+0xfa/0x150 [sym53c8xx]
>[  105.228581]  [<ffffffff8151b807>] scsi_dispatch_cmd+0xb7/0x4e0
>[  105.228581]  [<ffffffff81523c5c>] scsi_request_fn+0x33c/0x540
>[  105.228581]  [<ffffffff813955f3>] __blk_run_queue+0x33/0x40
>[  105.228581]  [<ffffffff8139b813>] blk_queue_bio+0x343/0x4d0
>[  105.228581]  [<ffffffff81395410>] generic_make_request+0xe0/0x130
>[  105.228581]  [<ffffffff813954d8>] submit_bio+0x78/0x160
>[  105.228581]  [<ffffffff812734fe>] ? bio_alloc_bioset+0x1ce/0x2f0
>[  105.228581]  [<ffffffff813a2cf3>] blkdev_issue_write_same+0x183/0x2b0
>[  105.228581]  [<ffffffff813a3117>] blkdev_issue_zeroout+0x97/0xf0
>[  105.228581]  [<ffffffff81303c9e>] ? __ext4_journal_get_write_access+0x4e/0x90
>[  105.228581]  [<ffffffff812ccb1c>] ext4_init_inode_table+0x17c/0x3c0
>[  105.228581]  [<ffffffff812e1f39>] ? ext4_lazyinit_thread+0xb9/0x320
>[  105.228581]  [<ffffffff812e212d>] ext4_lazyinit_thread+0x2ad/0x320
>[  105.228581]  [<ffffffff812e1e80>] ? ext4_unregister_li_request+0x70/0x70
>[  105.228581]  [<ffffffff810c42ef>] kthread+0xff/0x120
>[  105.228581]  [<ffffffff810c41f0>] ? insert_kthread_work+0x80/0x80
>[  105.228581]  [<ffffffff817e2dfc>] ret_from_fork+0x7c/0xb0
>[  105.228581]  [<ffffffff810c41f0>] ? insert_kthread_work+0x80/0x80
>[  105.228581] ---[ end trace 5a9768150bca5246 ]---
>[  105.240525] sd 2:0:0:0: [sda] Unhandled error code
>[  105.240527] sd 2:0:0:0: [sda]  
>[  105.240529] Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK
>[  105.240530] sd 2:0:0:0: [sda] CDB: 
>[  105.240532] Write Same(10): 41 00 00 00 0a 4e 00 01 f6 00
>[  105.240669] end_request: I/O error, dev sda, sector 2638
>[  105.240713] sda1: WRITE SAME failed. Manually zeroing.
>[  105.739695] sd 2:0:0:0: [sda] Unhandled error code
>[  105.739702] sd 2:0:0:0: [sda]  
>[  105.739704] Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK
>[  105.739706] sd 2:0:0:0: [sda] CDB: 
>[  105.739707] Write Same(10): 41 00 00 00 0c 44 00 01 fc 00
>[  105.739716] end_request: I/O error, dev sda, sector 3140
>[  105.739751] sda1: WRITE SAME failed. Manually zeroing.
>[  106.299390] sd 2:0:0:0: [sda] Unhandled error code
>[  106.299398] sd 2:0:0:0: [sda]  
>[  106.299401] Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK
>[  106.299403] sd 2:0:0:0: [sda] CDB: 
>[  106.299404] Write Same(10): 41 00 00 00 0e 40 00 01 fc 00
>[  106.299414] end_request: I/O error, dev sda, sector 3648
>[  106.299469] sda1: WRITE SAME failed. Manually zeroing.
>[  106.788928] sd 2:0:0:0: [sda] Unhandled error code
>[  106.788934] sd 2:0:0:0: [sda]  
>[  106.788936] Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK
>[  106.788938] sd 2:0:0:0: [sda] CDB: 
>[  106.788939] Write Same(10): 41 00 00 00 10 3c 00 01 fc 00
>[  106.788948] end_request: I/O error, dev sda, sector 4156
>[  106.789055] sda1: WRITE SAME failed. Manually zeroing.
>[  107.260523] sd 2:0:0:0: [sda] Unhandled error code
>[  107.260530] sd 2:0:0:0: [sda]  
>[  107.260532] Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK
>[  107.260534] sd 2:0:0:0: [sda] CDB: 
>[  107.260535] Write Same(10): 41 00 00 00 12 38 00 01 fc 00
>[  107.260544] end_request: I/O error, dev sda, sector 4664
>[  107.260573] sda1: WRITE SAME failed. Manually zeroing.
>[  107.725228] sd 2:0:0:0: [sda] Unhandled error code
>[  107.725235] sd 2:0:0:0: [sda]  
>[  107.725237] Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK
>[  107.725239] sd 2:0:0:0: [sda] CDB: 
>[  107.725240] Write Same(10): 41 00 00 00 14 34 00 01 fc 00
>[  107.725250] end_request: I/O error, dev sda, sector 5172
>[  107.725280] sda1: WRITE SAME failed. Manually zeroing.
>[  108.380131] sd 2:0:0:0: [sda] Unhandled error code
>[  108.380141] sd 2:0:0:0: [sda]  
>[  108.380144] Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK
>[  108.380146] sd 2:0:0:0: [sda] CDB: 
>[  108.380148] Write Same(10): 41 00 00 00 16 30 00 01 fc 00
>[  108.380159] end_request: I/O error, dev sda, sector 5680
>[  108.380214] sda1: WRITE SAME failed. Manually zeroing.
>[  108.856759] sd 2:0:0:0: [sda] Unhandled error code
>[  108.856766] sd 2:0:0:0: [sda]  
>[  108.856768] Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK
>[  108.856770] sd 2:0:0:0: [sda] CDB: 
>[  108.856771] Write Same(10): 41 00 00 00 18 2c 00 01 fc 00
>[  108.856780] end_request: I/O error, dev sda, sector 6188
>[  108.856805] sda1: WRITE SAME failed. Manually zeroing.
>[  109.334056] sd 2:0:0:0: [sda] Unhandled error code
>[  109.334062] sd 2:0:0:0: [sda]  
>[  109.334064] Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK
>[  109.334066] sd 2:0:0:0: [sda] CDB: 
>[  109.334068] Write Same(10): 41 00 00 00 1a 28 00 01 fc 00
>[  109.334077] end_request: I/O error, dev sda, sector 6696
>[  109.334107] sda1: WRITE SAME failed. Manually zeroing.
>[  109.806862] sd 2:0:0:0: [sda] Unhandled error code
>[  109.806868] sd 2:0:0:0: [sda]  
>[  109.806870] Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK
>[  109.806872] sd 2:0:0:0: [sda] CDB: 
>[  109.806873] Write Same(10): 41 00 00 00 1c 24 00 01 fc 00
>[  109.806882] end_request: I/O error, dev sda, sector 7204
>[  109.806925] sda1: WRITE SAME failed. Manually zeroing.
>[  110.330318] sd 2:0:0:0: [sda] Unhandled error code
>[  110.330325] sd 2:0:0:0: [sda]  
>[  110.330327] Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK
>[  110.330329] sd 2:0:0:0: [sda] CDB: 
>[  110.330330] Write Same(10): 41 00 00 00 1e 20 00 01 fc 00
>[  110.330339] end_request: I/O error, dev sda, sector 7712
>[  110.330412] sda1: WRITE SAME failed. Manually zeroing.
>[  110.799908] sd 2:0:0:0: [sda] Unhandled error code
>[  110.799915] sd 2:0:0:0: [sda]  
>[  110.799917] Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK
>[  110.799919] sd 2:0:0:0: [sda] CDB: 
>[  110.799920] Write Same(10): 41 00 00 00 20 1c 00 01 fc 00
>[  110.799929] end_request: I/O error, dev sda, sector 8220
>[  110.799979] sda1: WRITE SAME failed. Manually zeroing.
>[  111.271574] sd 2:0:0:0: [sda] Unhandled error code
>[  111.271580] sd 2:0:0:0: [sda]  
>[  111.271582] Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK
>[  111.271584] sd 2:0:0:0: [sda] CDB: 
>[  111.271586] Write Same(10): 41 00 00 00 22 18 00 01 fc 00
>[  111.271595] end_request: I/O error, dev sda, sector 8728
>[  111.271633] sda1: WRITE SAME failed. Manually zeroing.
>[  111.741066] sd 2:0:0:0: [sda] Unhandled error code
>[  111.741074] sd 2:0:0:0: [sda]  
>[  111.741076] Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK
>[  111.741078] sd 2:0:0:0: [sda] CDB: 
>[  111.741080] Write Same(10): 41 00 00 00 24 14 00 01 fc 00
>[  111.741089] end_request: I/O error, dev sda, sector 9236
>[  111.741143] sda1: WRITE SAME failed. Manually zeroing.
>[  112.215205] sd 2:0:0:0: [sda] Unhandled error code
>[  112.215211] sd 2:0:0:0: [sda]  
>[  112.215213] Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK
>[  112.215216] sd 2:0:0:0: [sda] CDB: 
>[  112.215217] Write Same(10): 41 00 00 00 26 10 00 01 fc 00
>[  112.215226] end_request: I/O error, dev sda, sector 9744
>[  112.215259] sda1: WRITE SAME failed. Manually zeroing.
>[  112.682382] sd 2:0:0:0: [sda] Unhandled error code
>[  112.682388] sd 2:0:0:0: [sda]  
>[  112.682390] Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK
>[  112.682392] sd 2:0:0:0: [sda] CDB: 
>[  112.682394] Write Same(10): 41 00 00 00 28 0c 00 01 fc 00
>[  112.682402] end_request: I/O error, dev sda, sector 10252
>[  112.682450] sda1: WRITE SAME failed. Manually zeroing.
>[  113.156182] sd 2:0:0:0: [sda] Unhandled error code
>[  113.156189] sd 2:0:0:0: [sda]  
>[  113.156191] Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK
>[  113.156193] sd 2:0:0:0: [sda] CDB: 
>[  113.156194] Write Same(10): 41 00 00 04 08 42 00 01 fc 00
>[  113.156203] end_request: I/O error, dev sda, sector 264258
>[  113.156427] sda1: WRITE SAME failed. Manually zeroing.
>[  113.637196] sd 2:0:0:0: [sda] Unhandled error code
>[  113.637202] sd 2:0:0:0: [sda]  
>[  113.637204] Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK
>[  113.637206] sd 2:0:0:0: [sda] CDB: 
>[  113.637208] Write Same(10): 41 00 00 04 0a 3e 00 01 fc 00
>[  113.637217] end_request: I/O error, dev sda, sector 264766
>[  113.637270] sda1: WRITE SAME failed. Manually zeroing.
>[  114.547291] sd 2:0:0:0: [sda] Unhandled error code
>[  114.547297] sd 2:0:0:0: [sda]  
>[  114.547299] Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK
>[  114.547301] sd 2:0:0:0: [sda] CDB: 
>[  114.547303] Write Same(10): 41 00 00 04 0c 3a 00 01 fc 00
>[  114.547311] end_request: I/O error, dev sda, sector 265274
>[  114.547346] sda1: WRITE SAME failed. Manually zeroing.
>[  115.027428] sd 2:0:0:0: [sda] Unhandled error code
>[  115.027434] sd 2:0:0:0: [sda]  
>[  115.027436] Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK
>[  115.027438] sd 2:0:0:0: [sda] CDB: 
>[  115.027440] Write Same(10): 41 00 00 04 0e 36 00 01 fc 00
>[  115.027448] end_request: I/O error, dev sda, sector 265782
>[  115.027475] sda1: WRITE SAME failed. Manually zeroing.
>[  115.496069] sd 2:0:0:0: [sda] Unhandled error code
>[  115.496075] sd 2:0:0:0: [sda]  
>[  115.496078] Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK
>[  115.496080] sd 2:0:0:0: [sda] CDB: 
>[  115.496081] Write Same(10): 41 00 00 04 10 32 00 01 fc 00
>[  115.496119] sda1: WRITE SAME failed. Manually zeroing.
>[  115.964291] sd 2:0:0:0: [sda] Unhandled error code
>[  115.964298] sd 2:0:0:0: [sda]  
>[  115.964300] Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK
>[  115.964303] sd 2:0:0:0: [sda] CDB: 
>[  115.964305] Write Same(10): 41 00 00 04 12 2e 00 01 fc 00
>[  115.964315] blk_update_request: 1 callbacks suppressed
>[  115.964317] end_request: I/O error, dev sda, sector 266798
>[  115.964349] sda1: WRITE SAME failed. Manually zeroing.
>[  116.435285] sd 2:0:0:0: [sda] Unhandled error code
>[  116.435291] sd 2:0:0:0: [sda]  
>[  116.435294] Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK
>[  116.435296] sd 2:0:0:0: [sda] CDB: 
>[  116.435297] Write Same(10): 41 00 00 04 14 2a 00 01 fc 00
>[  116.435306] end_request: I/O error, dev sda, sector 267306
>[  116.435355] sda1: WRITE SAME failed. Manually zeroing.
>[  116.914966] sd 2:0:0:0: [sda] Unhandled error code
>[  116.914973] sd 2:0:0:0: [sda]  
>[  116.914975] Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK
>[  116.914977] sd 2:0:0:0: [sda] CDB: 
>[  116.914979] Write Same(10): 41 00 00 04 16 26 00 01 fc 00
>[  116.914988] end_request: I/O error, dev sda, sector 267814
>[  116.915085] sda1: WRITE SAME failed. Manually zeroing.
>[  117.395152] sd 2:0:0:0: [sda] Unhandled error code
>[  117.395158] sd 2:0:0:0: [sda]  
>[  117.395160] Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK
>[  117.395162] sd 2:0:0:0: [sda] CDB: 
>[  117.395164] Write Same(10): 41 00 00 04 18 22 00 01 fc 00
>[  117.395173] end_request: I/O error, dev sda, sector 268322
>[  117.395204] sda1: WRITE SAME failed. Manually zeroing.
>[  117.877327] sd 2:0:0:0: [sda] Unhandled error code
>[  117.877333] sd 2:0:0:0: [sda]  
>[  117.877336] Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK
>[  117.877337] sd 2:0:0:0: [sda] CDB: 
>[  117.877339] Write Same(10): 41 00 00 04 1a 1e 00 01 fc 00
>[  117.877348] end_request: I/O error, dev sda, sector 268830
>[  117.877381] sda1: WRITE SAME failed. Manually zeroing.
>[  118.345774] sd 2:0:0:0: [sda] Unhandled error code
>[  118.345780] sd 2:0:0:0: [sda]  
>[  118.345782] Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK
>[  118.345784] sd 2:0:0:0: [sda] CDB: 
>[  118.345786] Write Same(10): 41 00 00 04 1c 1a 00 01 fc 00
>[  118.345794] end_request: I/O error, dev sda, sector 269338
>[  118.345847] sda1: WRITE SAME failed. Manually zeroing.
>[  118.821406] sd 2:0:0:0: [sda] Unhandled error code
>[  118.821413] sd 2:0:0:0: [sda]  
>[  118.821415] Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK
>[  118.821417] sd 2:0:0:0: [sda] CDB: 
>[  118.821418] Write Same(10): 41 00 00 04 1e 16 00 01 fc 00
>[  118.821427] end_request: I/O error, dev sda, sector 269846
>[  118.821497] sda1: WRITE SAME failed. Manually zeroing.
>[  119.622463] sd 2:0:0:0: [sda] Unhandled error code
>[  119.622469] sd 2:0:0:0: [sda]  
>[  119.622471] Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK
>[  119.622473] sd 2:0:0:0: [sda] CDB: 
>[  119.622475] Write Same(10): 41 00 00 04 20 12 00 01 fc 00
>[  119.622484] end_request: I/O error, dev sda, sector 270354
>[  119.622557] sda1: WRITE SAME failed. Manually zeroing.
>[  120.097232] sd 2:0:0:0: [sda] Unhandled error code
>[  120.097239] sd 2:0:0:0: [sda]  
>[  120.097241] Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK
>[  120.097243] sd 2:0:0:0: [sda] CDB: 
>[  120.097244] Write Same(10): 41 00 00 04 22 0e 00 01 fc 00
>[  120.097253] end_request: I/O error, dev sda, sector 270862
>[  120.097285] sda1: WRITE SAME failed. Manually zeroing.
>[  120.568401] sd 2:0:0:0: [sda] Unhandled error code
>[  120.568407] sd 2:0:0:0: [sda]  
>[  120.568409] Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK
>[  120.568411] sd 2:0:0:0: [sda] CDB: 
>[  120.568413] Write Same(10): 41 00 00 04 24 0a 00 01 fc 00
>[  120.568421] end_request: I/O error, dev sda, sector 271370
>[  120.568451] sda1: WRITE SAME failed. Manually zeroing.
>[  121.041089] sd 2:0:0:0: [sda] Unhandled error code
>[  121.041096] sd 2:0:0:0: [sda]  
>[  121.041098] Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK
>[  121.041099] sd 2:0:0:0: [sda] CDB: 
>[  121.041101] Write Same(10): 41 00 00 04 26 06 00 01 fc 00
>[  121.041141] sda1: WRITE SAME failed. Manually zeroing.
>[  121.512725] sd 2:0:0:0: [sda] Unhandled error code
>[  121.512731] sd 2:0:0:0: [sda]  
>[  121.512734] Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK
>[  121.512736] sd 2:0:0:0: [sda] CDB: 
>[  121.512737] Write Same(10): 41 00 00 08 08 54 00 01 ea 00
>[  121.512746] blk_update_request: 1 callbacks suppressed
>[  121.512747] end_request: I/O error, dev sda, sector 526420
>[  121.512777] sda1: WRITE SAME failed. Manually zeroing.
>[  121.986740] sd 2:0:0:0: [sda] Unhandled error code
>[  121.986747] sd 2:0:0:0: [sda]  
>[  121.986749] Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK
>[  121.986751] sd 2:0:0:0: [sda] CDB: 
>[  121.986753] Write Same(10): 41 00 00 08 0a 3e 00 01 fc 00
>[  121.986761] end_request: I/O error, dev sda, sector 526910
>[  121.986813] sda1: WRITE SAME failed. Manually zeroing.
>[  122.455062] sd 2:0:0:0: [sda] Unhandled error code
>[  122.455068] sd 2:0:0:0: [sda]  
>[  122.455070] Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK
>[  122.455072] sd 2:0:0:0: [sda] CDB: 
>[  122.455074] Write Same(10): 41 00 00 08 0c 3a 00 01 fc 00
>[  122.455083] end_request: I/O error, dev sda, sector 527418
>[  122.455109] sda1: WRITE SAME failed. Manually zeroing.
>[  122.928812] sd 2:0:0:0: [sda] Unhandled error code
>[  122.928820] sd 2:0:0:0: [sda]  
>[  122.928822] Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK
>[  122.928824] sd 2:0:0:0: [sda] CDB: 
>[  122.928826] Write Same(10): 41 00 00 08 0e 36 00 01 fc 00
>[  122.928835] end_request: I/O error, dev sda, sector 527926
>[  122.928861] sda1: WRITE SAME failed. Manually zeroing.
>[  123.427458] sd 2:0:0:0: [sda] Unhandled error code
>[  123.427464] sd 2:0:0:0: [sda]  
>[  123.427467] Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK
>[  123.427469] sd 2:0:0:0: [sda] CDB: 
>[  123.427470] Write Same(10): 41 00 00 08 10 32 00 01 fc 00
>[  123.427479] end_request: I/O error, dev sda, sector 528434
>[  123.427551] sda1: WRITE SAME failed. Manually zeroing.
>[  123.902257] sd 2:0:0:0: [sda] Unhandled error code
>[  123.902264] sd 2:0:0:0: [sda]  
>[  123.902266] Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK
>[  123.902269] sd 2:0:0:0: [sda] CDB: 
>[  123.902270] Write Same(10): 41 00 00 08 12 2e 00 01 fc 00
>[  123.902279] end_request: I/O error, dev sda, sector 528942
>[  123.902313] sda1: WRITE SAME failed. Manually zeroing.
>[  124.388668] sd 2:0:0:0: [sda] Unhandled error code
>[  124.388674] sd 2:0:0:0: [sda]  
>[  124.388676] Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK
>[  124.388678] sd 2:0:0:0: [sda] CDB: 
>[  124.388680] Write Same(10): 41 00 00 08 14 2a 00 01 fc 00
>[  124.388689] end_request: I/O error, dev sda, sector 529450
>[  124.388721] sda1: WRITE SAME failed. Manually zeroing.
>[  125.774200] sd 2:0:0:0: [sda] Unhandled error code
>[  125.774207] sd 2:0:0:0: [sda]  
>[  125.774209] Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK
>[  125.774211] sd 2:0:0:0: [sda] CDB: 
>[  125.774212] Write Same(10): 41 00 00 08 16 26 00 01 fc 00
>[  125.774221] end_request: I/O error, dev sda, sector 529958
>[  125.774275] sda1: WRITE SAME failed. Manually zeroing.
>[  126.248520] sd 2:0:0:0: [sda] Unhandled error code
>[  126.248526] sd 2:0:0:0: [sda]  
>[  126.248528] Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK
>[  126.248530] sd 2:0:0:0: [sda] CDB: 
>[  126.248532] Write Same(10): 41 00 00 08 18 22 00 01 fc 00
>[  126.248540] end_request: I/O error, dev sda, sector 530466
>[  126.248697] sda1: WRITE SAME failed. Manually zeroing.
>[  126.725242] sd 2:0:0:0: [sda] Unhandled error code
>[  126.725248] sd 2:0:0:0: [sda]  
>[  126.725250] Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK
>[  126.725252] sd 2:0:0:0: [sda] CDB: 
>[  126.725254] Write Same(10): 41 00 00 08 1a 1e 00 01 fc 00
>[  126.725263] end_request: I/O error, dev sda, sector 530974
>[  126.725330] sda1: WRITE SAME failed. Manually zeroing.
>[  127.203449] sd 2:0:0:0: [sda] Unhandled error code
>[  127.203455] sd 2:0:0:0: [sda]  
>[  127.203457] Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK
>[  127.203459] sd 2:0:0:0: [sda] CDB: 
>[  127.203461] Write Same(10): 41 00 00 08 1c 1a 00 01 fc 00
>[  127.203469] end_request: I/O error, dev sda, sector 531482
>[  127.203500] sda1: WRITE SAME failed. Manually zeroing.
>[  127.668858] sd 2:0:0:0: [sda] Unhandled error code
>[  127.668864] sd 2:0:0:0: [sda]  
>[  127.668866] Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK
>[  127.668868] sd 2:0:0:0: [sda] CDB: 
>[  127.668870] Write Same(10): 41 00 00 08 1e 16 00 01 fc 00
>[  127.668879] end_request: I/O error, dev sda, sector 531990
>[  127.668916] sda1: WRITE SAME failed. Manually zeroing.
>[  128.171338] sd 2:0:0:0: [sda] Unhandled error code
>[  128.171344] sd 2:0:0:0: [sda]  
>[  128.171346] Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK
>[  128.171348] sd 2:0:0:0: [sda] CDB: 
>[  128.171350] Write Same(10): 41 00 00 08 20 12 00 01 fc 00
>[  128.171359] end_request: I/O error, dev sda, sector 532498
>[  128.171394] sda1: WRITE SAME failed. Manually zeroing.
>[  128.643420] sd 2:0:0:0: [sda] Unhandled error code
>[  128.643427] sd 2:0:0:0: [sda]  
>[  128.643429] Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK
>[  128.643431] sd 2:0:0:0: [sda] CDB: 
>[  128.643433] Write Same(10): 41 00 00 08 22 0e 00 01 fc 00
>[  128.643442] end_request: I/O error, dev sda, sector 533006
>[  128.643475] sda1: WRITE SAME failed. Manually zeroing.
>[  129.131179] sd 2:0:0:0: [sda] Unhandled error code
>[  129.131186] sd 2:0:0:0: [sda]  
>[  129.131188] Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK
>[  129.131189] sd 2:0:0:0: [sda] CDB: 
>[  129.131191] Write Same(10): 41 00 00 08 24 0a 00 01 fc 00
>[  129.131200] end_request: I/O error, dev sda, sector 533514
>[  129.131249] sda1: WRITE SAME failed. Manually zeroing.
>[  129.624158] sd 2:0:0:0: [sda] Unhandled error code
>[  129.624165] sd 2:0:0:0: [sda]  
>[  129.624168] Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK
>[  129.624170] sd 2:0:0:0: [sda] CDB: 
>[  129.624171] Write Same(10): 41 00 00 08 26 06 00 01 fc 00
>[  129.624180] end_request: I/O error, dev sda, sector 534022
>[  129.624235] sda1: WRITE SAME failed. Manually zeroing.
>[  131.620061] sd 2:0:0:0: [sda] Unhandled error code
>[  131.620068] sd 2:0:0:0: [sda]  
>[  131.620070] Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK
>[  131.620072] sd 2:0:0:0: [sda] CDB: 
>[  131.620074] Write Same(10): 41 00 00 0c 08 42 00 01 fc 00
>[  131.620083] end_request: I/O error, dev sda, sector 788546
>[  131.620885] sda1: WRITE SAME failed. Manually zeroing.
>[  132.085209] sd 2:0:0:0: [sda] Unhandled error code
>[  132.085215] sd 2:0:0:0: [sda]  
>[  132.085218] Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK
>[  132.085220] sd 2:0:0:0: [sda] CDB: 
>[  132.085221] Write Same(10): 41 00 00 0c 0a 3e 00 01 fc 00
>[  132.085230] end_request: I/O error, dev sda, sector 789054
>[  132.085262] sda1: WRITE SAME failed. Manually zeroing.
>
>[  132.569211] =========================================================
>[  132.569212] [ INFO: possible irq lock inversion dependency detected ]
>[  132.569214] 3.14.0-0.rc1.git5.1.fc21.1.x86_64 #1 Tainted: G        W   
>[  132.569216] ---------------------------------------------------------
>[  132.569217] kswapd0/30 just changed the state of lock:
>[  132.569219]  (&delayed_node->mutex){+.+.-.}, at: [<ffffffffa01ee9ad>] __btrfs_release_delayed_node+0x3d/0x1f0 [btrfs]
>[  132.569245] but this lock took another, RECLAIM_FS-unsafe lock in the past:
>[  132.569246]  (&found->groups_sem){+++++.}
>
>and interrupts could create inverse lock ordering between them.
>
>[  132.569249] 
>other info that might help us debug this:
>[  132.569250]  Possible interrupt unsafe locking scenario:
>
>[  132.569252]        CPU0                    CPU1
>[  132.569252]        ----                    ----
>[  132.569253]   lock(&found->groups_sem);
>[  132.569255]                                local_irq_disable();
>[  132.569256]                                lock(&delayed_node->mutex);
>[  132.569257]                                lock(&found->groups_sem);
>[  132.569259]   <Interrupt>
>[  132.569260]     lock(&delayed_node->mutex);
>[  132.569261] 
> *** DEADLOCK ***
>
>[  132.569263] 2 locks held by kswapd0/30:
>[  132.569264]  #0:  (shrinker_rwsem){++++..}, at: [<ffffffff811c44df>] shrink_slab+0x3f/0x180
>[  132.569271]  #1:  (&type->s_umount_key#34){+++++.}, at: [<ffffffff81236a94>] grab_super_passive+0x44/0x90
>[  132.569277] 
>the shortest dependencies between 2nd lock and 1st lock:
>[  132.569298]  -> (&found->groups_sem){+++++.} ops: 5185 {
>[  132.569301]     HARDIRQ-ON-W at:
>[  132.569302]                       [<ffffffff810f9399>] __lock_acquire+0x659/0x1c40
>[  132.569306]                       [<ffffffff810fb172>] lock_acquire+0xa2/0x1d0
>[  132.569308]                       [<ffffffff817d6f9e>] down_write+0x4e/0xc0
>[  132.569311]                       [<ffffffffa018585b>] __link_block_group+0x3b/0xf0 [btrfs]
>[  132.569321]                       [<ffffffffa018773b>] btrfs_read_block_groups+0x30b/0x690 [btrfs]
>[  132.569330]                       [<ffffffffa0196a79>] open_ctree+0x17f9/0x21e0 [btrfs]
>[  132.569340]                       [<ffffffffa0169c5e>] btrfs_mount+0x63e/0x810 [btrfs]
>[  132.569347]                       [<ffffffff81237469>] mount_fs+0x39/0x1b0
>[  132.569350]                       [<ffffffff8125790b>] vfs_kern_mount+0x6b/0x150
>[  132.569352]                       [<ffffffff8125a7de>] do_mount+0x24e/0xbb0
>[  132.569354]                       [<ffffffff8125b486>] SyS_mount+0x96/0xf0
>[  132.569356]                       [<ffffffff817e2ea9>] system_call_fastpath+0x16/0x1b
>[  132.569359]     HARDIRQ-ON-R at:
>[  132.569360]                       [<ffffffff810f9280>] __lock_acquire+0x540/0x1c40
>[  132.569362]                       [<ffffffff810fb172>] lock_acquire+0xa2/0x1d0
>[  132.569364]                       [<ffffffff817d6f01>] down_read+0x51/0xa0
>[  132.569366]                       [<ffffffffa0191fed>] btrfs_calc_num_tolerated_disk_barrier_failures+0x1cd/0x350 [btrfs]
>[  132.569375]                       [<ffffffffa0196a97>] open_ctree+0x1817/0x21e0 [btrfs]
>[  132.569385]                       [<ffffffffa0169c5e>] btrfs_mount+0x63e/0x810 [btrfs]
>[  132.569393]                       [<ffffffff81237469>] mount_fs+0x39/0x1b0
>[  132.569395]                       [<ffffffff8125790b>] vfs_kern_mount+0x6b/0x150
>[  132.569396]                       [<ffffffff8125a7de>] do_mount+0x24e/0xbb0
>[  132.569398]                       [<ffffffff8125b486>] SyS_mount+0x96/0xf0
>[  132.569400]                       [<ffffffff817e2ea9>] system_call_fastpath+0x16/0x1b
>[  132.569402]     SOFTIRQ-ON-W at:
>[  132.569403]                       [<ffffffff810f93cf>] __lock_acquire+0x68f/0x1c40
>[  132.569405]                       [<ffffffff810fb172>] lock_acquire+0xa2/0x1d0
>[  132.569407]                       [<ffffffff817d6f9e>] down_write+0x4e/0xc0
>[  132.569409]                       [<ffffffffa018585b>] __link_block_group+0x3b/0xf0 [btrfs]
>[  132.569418]                       [<ffffffffa018773b>] btrfs_read_block_groups+0x30b/0x690 [btrfs]
>[  132.569427]                       [<ffffffffa0196a79>] open_ctree+0x17f9/0x21e0 [btrfs]
>[  132.569437]                       [<ffffffffa0169c5e>] btrfs_mount+0x63e/0x810 [btrfs]
>[  132.569444]                       [<ffffffff81237469>] mount_fs+0x39/0x1b0
>[  132.569446]                       [<ffffffff8125790b>] vfs_kern_mount+0x6b/0x150
>[  132.569448]                       [<ffffffff8125a7de>] do_mount+0x24e/0xbb0
>[  132.569450]                       [<ffffffff8125b486>] SyS_mount+0x96/0xf0
>[  132.569452]                       [<ffffffff817e2ea9>] system_call_fastpath+0x16/0x1b
>[  132.569454]     SOFTIRQ-ON-R at:
>[  132.569455]                       [<ffffffff810f93cf>] __lock_acquire+0x68f/0x1c40
>[  132.569457]                       [<ffffffff810fb172>] lock_acquire+0xa2/0x1d0
>[  132.569459]                       [<ffffffff817d6f01>] down_read+0x51/0xa0
>[  132.569460]                       [<ffffffffa0191fed>] btrfs_calc_num_tolerated_disk_barrier_failures+0x1cd/0x350 [btrfs]
>[  132.569470]                       [<ffffffffa0196a97>] open_ctree+0x1817/0x21e0 [btrfs]
>[  132.569480]                       [<ffffffffa0169c5e>] btrfs_mount+0x63e/0x810 [btrfs]
>[  132.569487]                       [<ffffffff81237469>] mount_fs+0x39/0x1b0
>[  132.569489]                       [<ffffffff8125790b>] vfs_kern_mount+0x6b/0x150
>[  132.569491]                       [<ffffffff8125a7de>] do_mount+0x24e/0xbb0
>[  132.569493]                       [<ffffffff8125b486>] SyS_mount+0x96/0xf0
>[  132.569495]                       [<ffffffff817e2ea9>] system_call_fastpath+0x16/0x1b
>[  132.569497]     RECLAIM_FS-ON-W at:
>[  132.569498]                          [<ffffffff810f8739>] mark_held_locks+0xb9/0x140
>[  132.569500]                          [<ffffffff810fbb6a>] lockdep_trace_alloc+0x7a/0xe0
>[  132.569502]                          [<ffffffff8121182f>] __kmalloc_track_caller+0x4f/0x350
>[  132.569505]                          [<ffffffff813d6f21>] kvasprintf+0x61/0xa0
>[  132.569508]                          [<ffffffff813c9701>] kobject_set_name_vargs+0x21/0x70
>[  132.569510]                          [<ffffffff813ca192>] kobject_add+0x62/0xd0
>[  132.569512]                          [<ffffffffa01858e4>] __link_block_group+0xc4/0xf0 [btrfs]
>[  132.569521]                          [<ffffffffa018773b>] btrfs_read_block_groups+0x30b/0x690 [btrfs]
>[  132.569530]                          [<ffffffffa0196a79>] open_ctree+0x17f9/0x21e0 [btrfs]
>[  132.569539]                          [<ffffffffa0169c5e>] btrfs_mount+0x63e/0x810 [btrfs]
>[  132.569547]                          [<ffffffff81237469>] mount_fs+0x39/0x1b0
>[  132.569549]                          [<ffffffff8125790b>] vfs_kern_mount+0x6b/0x150
>[  132.569551]                          [<ffffffff8125a7de>] do_mount+0x24e/0xbb0
>[  132.569553]                          [<ffffffff8125b486>] SyS_mount+0x96/0xf0
>[  132.569554]                          [<ffffffff817e2ea9>] system_call_fastpath+0x16/0x1b
>[  132.569556]     INITIAL USE at:
>[  132.569558]                      [<ffffffff810f9087>] __lock_acquire+0x347/0x1c40
>[  132.569560]                      [<ffffffff810fb172>] lock_acquire+0xa2/0x1d0
>[  132.569562]                      [<ffffffff817d6f9e>] down_write+0x4e/0xc0
>[  132.569564]                      [<ffffffffa018585b>] __link_block_group+0x3b/0xf0 [btrfs]
>[  132.569573]                      [<ffffffffa018773b>] btrfs_read_block_groups+0x30b/0x690 [btrfs]
>[  132.569582]                      [<ffffffffa0196a79>] open_ctree+0x17f9/0x21e0 [btrfs]
>[  132.569592]                      [<ffffffffa0169c5e>] btrfs_mount+0x63e/0x810 [btrfs]
>[  132.569599]                      [<ffffffff81237469>] mount_fs+0x39/0x1b0
>[  132.569601]                      [<ffffffff8125790b>] vfs_kern_mount+0x6b/0x150
>[  132.569603]                      [<ffffffff8125a7de>] do_mount+0x24e/0xbb0
>[  132.569605]                      [<ffffffff8125b486>] SyS_mount+0x96/0xf0
>[  132.569606]                      [<ffffffff817e2ea9>] system_call_fastpath+0x16/0x1b
>[  132.569609]   }
>[  132.569610]   ... key      at: [<ffffffffa022a7e0>] __key.42526+0x0/0xfffffffffffe5820 [btrfs]
>[  132.569618]   ... acquired at:
>[  132.569619]    [<ffffffff810fb172>] lock_acquire+0xa2/0x1d0
>[  132.569621]    [<ffffffff817d6f01>] down_read+0x51/0xa0
>[  132.569623]    [<ffffffffa018519b>] find_free_extent+0x80b/0xe90 [btrfs]
>[  132.569632]    [<ffffffffa01859d8>] btrfs_reserve_extent+0xa8/0x140 [btrfs]
>[  132.569641]    [<ffffffffa0185cee>] btrfs_alloc_free_block+0xfe/0x480 [btrfs]
>[  132.569650]    [<ffffffffa016f1f4>] __btrfs_cow_block+0x134/0x550 [btrfs]
>[  132.569657]    [<ffffffffa016f7a6>] btrfs_cow_block+0x116/0x270 [btrfs]
>[  132.569665]    [<ffffffffa0173630>] btrfs_search_slot+0x1e0/0xa30 [btrfs]
>[  132.569673]    [<ffffffffa01ef4ac>] btrfs_delete_delayed_items+0xcc/0x330 [btrfs]
>[  132.569684]    [<ffffffffa01efed2>] __btrfs_run_delayed_items+0x122/0x1e0 [btrfs]
>[  132.569696]    [<ffffffffa01effc3>] btrfs_run_delayed_items+0x13/0x20 [btrfs]
>[  132.569708]    [<ffffffffa0198449>] btrfs_flush_all_pending_stuffs+0x19/0x70 [btrfs]
>[  132.569717]    [<ffffffffa0199512>] btrfs_commit_transaction+0x232/0xaa0 [btrfs]
>[  132.569728]    [<ffffffffa0164354>] btrfs_sync_fs+0x54/0x160 [btrfs]
>[  132.569735]    [<ffffffff8126b0f5>] sync_filesystem+0x85/0xc0
>[  132.569737]    [<ffffffff81235520>] generic_shutdown_super+0x30/0xf0
>[  132.569739]    [<ffffffff812357c2>] kill_anon_super+0x12/0x20
>[  132.569741]    [<ffffffffa0166a06>] btrfs_kill_super+0x16/0x90 [btrfs]
>[  132.569749]    [<ffffffff81235c9d>] deactivate_locked_super+0x3d/0x60
>[  132.569751]    [<ffffffff81236276>] deactivate_super+0x46/0x60
>[  132.569753]    [<ffffffff812583fd>] mntput_no_expire+0x17d/0x1f0
>[  132.569755]    [<ffffffff81259d5d>] SyS_umount+0x9d/0x110
>[  132.569756]    [<ffffffff817e2ea9>] system_call_fastpath+0x16/0x1b
>
>[  132.569759] -> (&delayed_node->mutex){+.+.-.} ops: 286592 {
>[  132.569762]    HARDIRQ-ON-W at:
>[  132.569763]                     [<ffffffff810f9399>] __lock_acquire+0x659/0x1c40
>[  132.569765]                     [<ffffffff810fb172>] lock_acquire+0xa2/0x1d0
>[  132.569767]                     [<ffffffff817d47b7>] mutex_lock_nested+0x87/0x430
>[  132.569769]                     [<ffffffffa01f0663>] btrfs_delete_delayed_dir_index+0x83/0x200 [btrfs]
>[  132.569780]                     [<ffffffffa01a323f>] btrfs_unlink_subvol+0x17f/0x360 [btrfs]
>[  132.569791]                     [<ffffffffa01cc55a>] btrfs_ioctl_snap_destroy+0x47a/0x770 [btrfs]
>[  132.569802]                     [<ffffffffa01d22eb>] btrfs_ioctl+0x1c3b/0x2e10 [btrfs]
>[  132.569813]                     [<ffffffff81248850>] do_vfs_ioctl+0x300/0x520
>[  132.569816]                     [<ffffffff81248b11>] SyS_ioctl+0xa1/0xc0
>[  132.569818]                     [<ffffffff817e2ea9>] system_call_fastpath+0x16/0x1b
>[  132.569820]    SOFTIRQ-ON-W at:
>[  132.569821]                     [<ffffffff810f93cf>] __lock_acquire+0x68f/0x1c40
>[  132.569823]                     [<ffffffff810fb172>] lock_acquire+0xa2/0x1d0
>[  132.569825]                     [<ffffffff817d47b7>] mutex_lock_nested+0x87/0x430
>[  132.569827]                     [<ffffffffa01f0663>] btrfs_delete_delayed_dir_index+0x83/0x200 [btrfs]
>[  132.569838]                     [<ffffffffa01a323f>] btrfs_unlink_subvol+0x17f/0x360 [btrfs]
>[  132.569848]                     [<ffffffffa01cc55a>] btrfs_ioctl_snap_destroy+0x47a/0x770 [btrfs]
>[  132.569860]                     [<ffffffffa01d22eb>] btrfs_ioctl+0x1c3b/0x2e10 [btrfs]
>[  132.569871]                     [<ffffffff81248850>] do_vfs_ioctl+0x300/0x520
>[  132.569873]                     [<ffffffff81248b11>] SyS_ioctl+0xa1/0xc0
>[  132.569875]                     [<ffffffff817e2ea9>] system_call_fastpath+0x16/0x1b
>[  132.569877]    IN-RECLAIM_FS-W at:
>[  132.569878]                        [<ffffffff810f92f4>] __lock_acquire+0x5b4/0x1c40
>[  132.569880]                        [<ffffffff810fb172>] lock_acquire+0xa2/0x1d0
>[  132.569882]                        [<ffffffff817d47b7>] mutex_lock_nested+0x87/0x430
>[  132.569884]                        [<ffffffffa01ee9ad>] __btrfs_release_delayed_node+0x3d/0x1f0 [btrfs]
>[  132.569895]                        [<ffffffffa01f02a4>] btrfs_remove_delayed_node+0x24/0x30 [btrfs]
>[  132.569907]                        [<ffffffffa01a4eee>] btrfs_evict_inode+0x1ae/0x5d0 [btrfs]
>[  132.569918]                        [<ffffffff81252573>] evict+0xa3/0x1a0
>[  132.569920]                        [<ffffffff812526ae>] dispose_list+0x3e/0x50
>[  132.569922]                        [<ffffffff812536c6>] prune_icache_sb+0x56/0x80
>[  132.569924]                        [<ffffffff81236cf8>] super_cache_scan+0x108/0x180
>[  132.569926]                        [<ffffffff811c417b>] shrink_slab_node+0x14b/0x440
>[  132.569928]                        [<ffffffff811c452e>] shrink_slab+0x8e/0x180
>[  132.569930]                        [<ffffffff811c737d>] kswapd_shrink_zone+0x14d/0x1f0
>[  132.569932]                        [<ffffffff811c8f60>] kswapd+0x4b0/0xa60
>[  132.569934]                        [<ffffffff810c42ef>] kthread+0xff/0x120
>[  132.569936]                        [<ffffffff817e2dfc>] ret_from_fork+0x7c/0xb0
>[  132.569938]    INITIAL USE at:
>[  132.569939]                    [<ffffffff810f9087>] __lock_acquire+0x347/0x1c40
>[  132.569941]                    [<ffffffff810fb172>] lock_acquire+0xa2/0x1d0
>[  132.569943]                    [<ffffffff817d47b7>] mutex_lock_nested+0x87/0x430
>[  132.569945]                    [<ffffffffa01f0663>] btrfs_delete_delayed_dir_index+0x83/0x200 [btrfs]
>[  132.569956]                    [<ffffffffa01a323f>] btrfs_unlink_subvol+0x17f/0x360 [btrfs]
>[  132.569967]                    [<ffffffffa01cc55a>] btrfs_ioctl_snap_destroy+0x47a/0x770 [btrfs]
>[  132.569978]                    [<ffffffffa01d22eb>] btrfs_ioctl+0x1c3b/0x2e10 [btrfs]
>[  132.569989]                    [<ffffffff81248850>] do_vfs_ioctl+0x300/0x520
>[  132.569991]                    [<ffffffff81248b11>] SyS_ioctl+0xa1/0xc0
>[  132.569993]                    [<ffffffff817e2ea9>] system_call_fastpath+0x16/0x1b
>[  132.569995]  }
>[  132.569996]  ... key      at: [<ffffffffa022e738>] __key.37531+0x0/0xfffffffffffe18c8 [btrfs]
>[  132.570007]  ... acquired at:
>[  132.570008]    [<ffffffff810f7d0a>] check_usage_forwards+0x16a/0x180
>[  132.570010]    [<ffffffff810f8577>] mark_lock+0x1a7/0x2b0
>[  132.570012]    [<ffffffff810f92f4>] __lock_acquire+0x5b4/0x1c40
>[  132.570014]    [<ffffffff810fb172>] lock_acquire+0xa2/0x1d0
>[  132.570016]    [<ffffffff817d47b7>] mutex_lock_nested+0x87/0x430
>[  132.570016]    [<ffffffffa01ee9ad>] __btrfs_release_delayed_node+0x3d/0x1f0 [btrfs]
>[  132.570016]    [<ffffffffa01f02a4>] btrfs_remove_delayed_node+0x24/0x30 [btrfs]
>[  132.570030]    [<ffffffffa01a4eee>] btrfs_evict_inode+0x1ae/0x5d0 [btrfs]
>[  132.570030]    [<ffffffff81252573>] evict+0xa3/0x1a0
>[  132.570030]    [<ffffffff812526ae>] dispose_list+0x3e/0x50
>[  132.570030]    [<ffffffff812536c6>] prune_icache_sb+0x56/0x80
>[  132.570030]    [<ffffffff81236cf8>] super_cache_scan+0x108/0x180
>[  132.570030]    [<ffffffff811c417b>] shrink_slab_node+0x14b/0x440
>[  132.570030]    [<ffffffff811c452e>] shrink_slab+0x8e/0x180
>[  132.570030]    [<ffffffff811c737d>] kswapd_shrink_zone+0x14d/0x1f0
>[  132.570030]    [<ffffffff811c8f60>] kswapd+0x4b0/0xa60
>[  132.570030]    [<ffffffff810c42ef>] kthread+0xff/0x120
>[  132.570030]    [<ffffffff817e2dfc>] ret_from_fork+0x7c/0xb0
>
>[  132.570030] 
>stack backtrace:
>[  132.570030] CPU: 0 PID: 30 Comm: kswapd0 Tainted: G        W    3.14.0-0.rc1.git5.1.fc21.1.x86_64 #1
>[  132.570030] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
>[  132.570030]  0000000000000000 00000000518280e3 ffff88007f2c9718 ffffffff817cf05d
>[  132.570030]  ffffffff82a0b400 ffff88007f2c9758 ffffffff817ca6f6 ffffffff81a4d674
>[  132.570030]  0000000000000000 ffff88007f2c0ba0 ffff88007f2c0000 ffffffff81a4d674
>[  132.570030] Call Trace:
>[  132.570030]  [<ffffffff817cf05d>] dump_stack+0x4d/0x66
>[  132.570030]  [<ffffffff817ca6f6>] print_irq_inversion_bug.part.42+0x1ac/0x1b8
>[  132.570030]  [<ffffffff810f7d0a>] check_usage_forwards+0x16a/0x180
>[  132.570030]  [<ffffffff810f7ba0>] ? check_usage_backwards+0x180/0x180
>[  132.570030]  [<ffffffff810f8577>] mark_lock+0x1a7/0x2b0
>[  132.570030]  [<ffffffff810f92f4>] __lock_acquire+0x5b4/0x1c40
>[  132.570030]  [<ffffffff810f8739>] ? mark_held_locks+0xb9/0x140
>[  132.570030]  [<ffffffff817d82bc>] ? _raw_spin_unlock_irq+0x2c/0x40
>[  132.570030]  [<ffffffff810f899d>] ? trace_hardirqs_on+0xd/0x10
>[  132.570030]  [<ffffffff817d82bc>] ? _raw_spin_unlock_irq+0x2c/0x40
>[  132.570030]  [<ffffffff810cee0d>] ? finish_task_switch+0x7d/0x130
>[  132.570030]  [<ffffffff810cedcf>] ? finish_task_switch+0x3f/0x130
>[  132.570030]  [<ffffffff810fb172>] lock_acquire+0xa2/0x1d0
>[  132.570030]  [<ffffffffa01ee9ad>] ? __btrfs_release_delayed_node+0x3d/0x1f0 [btrfs]
>[  132.570030]  [<ffffffff817d47b7>] mutex_lock_nested+0x87/0x430
>[  132.570030]  [<ffffffffa01ee9ad>] ? __btrfs_release_delayed_node+0x3d/0x1f0 [btrfs]
>[  132.570030]  [<ffffffff810dd18d>] ? sched_clock_local+0x1d/0x80
>[  132.570030]  [<ffffffffa01ee9ad>] ? __btrfs_release_delayed_node+0x3d/0x1f0 [btrfs]
>[  132.570030]  [<ffffffffa01a4ec5>] ? btrfs_evict_inode+0x185/0x5d0 [btrfs]
>[  132.570030]  [<ffffffff810dd3d8>] ? sched_clock_cpu+0xa8/0xd0
>[  132.570030]  [<ffffffff810dd456>] ? local_clock+0x16/0x30
>[  132.570030]  [<ffffffffa01ee9ad>] __btrfs_release_delayed_node+0x3d/0x1f0 [btrfs]
>[  132.570030]  [<ffffffffa01f02a4>] btrfs_remove_delayed_node+0x24/0x30 [btrfs]
>[  132.570030]  [<ffffffffa01a4eee>] btrfs_evict_inode+0x1ae/0x5d0 [btrfs]
>[  132.570030]  [<ffffffff81252573>] evict+0xa3/0x1a0
>[  132.570030]  [<ffffffff812526ae>] dispose_list+0x3e/0x50
>[  132.570030]  [<ffffffff812536c6>] prune_icache_sb+0x56/0x80
>[  132.570030]  [<ffffffff81236cf8>] super_cache_scan+0x108/0x180
>[  132.570030]  [<ffffffff811c417b>] shrink_slab_node+0x14b/0x440
>[  132.570030]  [<ffffffff811c44df>] ? shrink_slab+0x3f/0x180
>[  132.570030]  [<ffffffff811c452e>] shrink_slab+0x8e/0x180
>[  132.570030]  [<ffffffff811c737d>] kswapd_shrink_zone+0x14d/0x1f0
>[  132.570030]  [<ffffffff811c8f60>] kswapd+0x4b0/0xa60
>[  132.570030]  [<ffffffff811c8ab0>] ? mem_cgroup_shrink_node_zone+0x2f0/0x2f0
>[  132.570030]  [<ffffffff810c42ef>] kthread+0xff/0x120
>[  132.570030]  [<ffffffff810c41f0>] ? insert_kthread_work+0x80/0x80
>[  132.570030]  [<ffffffff817e2dfc>] ret_from_fork+0x7c/0xb0
>[  132.570030]  [<ffffffff810c41f0>] ? insert_kthread_work+0x80/0x80
>[  132.969339] sd 2:0:0:0: [sda] Unhandled error code
>[  132.969346] sd 2:0:0:0: [sda]  
>[  132.969348] Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK
>[  132.969349] sd 2:0:0:0: [sda] CDB: 
>[  132.969351] Write Same(10): 41 00 00 0c 0c 3a 00 01 fc 00
>[  132.969358] end_request: I/O error, dev sda, sector 789562
>[  132.969380] sda1: WRITE SAME failed. Manually zeroing.
>[  133.425560] sd 2:0:0:0: [sda] Unhandled error code
>[  133.425567] sd 2:0:0:0: [sda]  
>[  133.425570] Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK
>[  133.425573] sd 2:0:0:0: [sda] CDB: 
>[  133.425574] Write Same(10): 41 00 00 0c 0e 36 00 01 fc 00
>[  133.425585] end_request: I/O error, dev sda, sector 790070
>[  133.425605] sda1: WRITE SAME failed. Manually zeroing.
>[  133.882639] sd 2:0:0:0: [sda] Unhandled error code
>[  133.882645] sd 2:0:0:0: [sda]  
>[  133.882647] Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK
>[  133.882649] sd 2:0:0:0: [sda] CDB: 
>[  133.882650] Write Same(10): 41 00 00 0c 10 32 00 01 fc 00
>[  133.882658] end_request: I/O error, dev sda, sector 790578
>[  133.882688] sda1: WRITE SAME failed. Manually zeroing.
>[  134.386026] sd 2:0:0:0: [sda] Unhandled error code
>[  134.386034] sd 2:0:0:0: [sda]  
>[  134.386036] Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK
>[  134.386038] sd 2:0:0:0: [sda] CDB: 
>[  134.386039] Write Same(10): 41 00 00 0c 12 2e 00 01 fc 00
>[  134.386047] end_request: I/O error, dev sda, sector 791086
>[  134.386159] sda1: WRITE SAME failed. Manually zeroing.
>[  134.844523] sd 2:0:0:0: [sda] Unhandled error code
>[  134.844530] sd 2:0:0:0: [sda]  
>[  134.844533] Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK
>[  134.844535] sd 2:0:0:0: [sda] CDB: 
>[  134.844537] Write Same(10): 41 00 00 0c 14 2a 00 01 fc 00
>[  134.844548] end_request: I/O error, dev sda, sector 791594
>[  134.844586] sda1: WRITE SAME failed. Manually zeroing.
>[  135.302724] sd 2:0:0:0: [sda] Unhandled error code
>[  135.302732] sd 2:0:0:0: [sda]  
>[  135.302735] Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK
>[  135.302738] sd 2:0:0:0: [sda] CDB: 
>[  135.302740] Write Same(10): 41 00 00 0c 16 26 00 01 fc 00
>[  135.302750] end_request: I/O error, dev sda, sector 792102
>[  135.302761] sda1: WRITE SAME failed. Manually zeroing.
>[  135.758499] sd 2:0:0:0: [sda] Unhandled error code
>[  135.758506] sd 2:0:0:0: [sda]  
>[  135.758508] Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK
>[  135.758509] sd 2:0:0:0: [sda] CDB: 
>[  135.758511] Write Same(10): 41 00 00 0c 18 22 00 01 fc 00
>[  135.758519] end_request: I/O error, dev sda, sector 792610
>[  135.758541] sda1: WRITE SAME failed. Manually zeroing.
>[  136.494466] sd 2:0:0:0: [sda] Unhandled error code
>[  136.494474] sd 2:0:0:0: [sda]  
>[  136.494476] Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK
>[  136.494479] sd 2:0:0:0: [sda] CDB: 
>[  136.494481] Write Same(10): 41 00 00 0c 1a 1e 00 01 fc 00
>[  136.494492] end_request: I/O error, dev sda, sector 793118
>[  136.494526] sda1: WRITE SAME failed. Manually zeroing.
>[  136.953520] sd 2:0:0:0: [sda] Unhandled error code
>[  136.953528] sd 2:0:0:0: [sda]  
>[  136.953530] Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK
>[  136.953533] sd 2:0:0:0: [sda] CDB: 
>[  136.953535] Write Same(10): 41 00 00 0c 1c 1a 00 01 fc 00
>[  136.953553] end_request: I/O error, dev sda, sector 793626
>[  136.953620] sda1: WRITE SAME failed. Manually zeroing.
>[  137.412033] sd 2:0:0:0: [sda] Unhandled error code
>[  137.412040] sd 2:0:0:0: [sda]  
>[  137.412042] Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK
>[  137.412044] sd 2:0:0:0: [sda] CDB: 
>[  137.412046] Write Same(10): 41 00 00 0c 1e 16 00 01 fc 00
>[  137.412054] end_request: I/O error, dev sda, sector 794134
>[  137.412081] sda1: WRITE SAME failed. Manually zeroing.
>[  137.870196] sd 2:0:0:0: [sda] Unhandled error code
>[  137.870202] sd 2:0:0:0: [sda]  
>[  137.870205] Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK
>[  137.870207] sd 2:0:0:0: [sda] CDB: 
>[  137.870208] Write Same(10): 41 00 00 0c 20 12 00 01 fc 00
>[  137.870228] sda1: WRITE SAME failed. Manually zeroing.
>[  138.328939] sd 2:0:0:0: [sda] Unhandled error code
>[  138.328945] sd 2:0:0:0: [sda]  
>[  138.328947] Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK
>[  138.328949] sd 2:0:0:0: [sda] CDB: 
>[  138.328951] Write Same(10): 41 00 00 0c 22 0e 00 01 fc 00
>[  138.328971] sda1: WRITE SAME failed. Manually zeroing.
>[  138.785467] sd 2:0:0:0: [sda] Unhandled error code
>[  138.785474] sd 2:0:0:0: [sda]  
>[  138.785477] Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK
>[  138.785480] sd 2:0:0:0: [sda] CDB: 
>[  138.785482] Write Same(10): 41 00 00 0c 24 0a 00 01 fc 00
>[  138.785492] blk_update_request: 2 callbacks suppressed
>[  138.785494] end_request: I/O error, dev sda, sector 795658
>[  138.785519] sda1: WRITE SAME failed. Manually zeroing.
>
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Attachments on bug 1062439: 860383 | 860783 | 860784 | 861122 | 861227 | 861651 | 862118 | 865118