Bug 1309838
| Summary: | GFS2 lockdep deadlock warning (sd_log_flush_lock vs gl->gl_work.work) | ||
|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Andrew Price <anprice> |
| Component: | kernel | Assignee: | gfs2-maint |
| Status: | CLOSED WORKSFORME | QA Contact: | Fedora Extras Quality Assurance <extras-qa> |
| Severity: | unspecified | Docs Contact: | |
| Priority: | unspecified | ||
| Version: | rawhide | CC: | gansalmon, itamar, jonathan, kernel-maint, madhu.chinakonda, mchehab, rpeterso |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2019-10-16 16:21:46 UTC | Type: | Bug |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
Hi Andy, I noticed in your call trace above that the shrinker is calling evict. Excerpt: [ 373.840558] [<ffffffff812b0308>] evict+0xb8/0x180 [ 373.841356] [<ffffffff812b0414>] dispose_list+0x44/0x70 [ 373.842216] [<ffffffff812b164a>] prune_icache_sb+0x5a/0x80 [ 373.843125] [<ffffffff812937be>] super_cache_scan+0x14e/0x1a0 [ 373.844051] [<ffffffff81205bf6>] shrink_slab.part.42+0x216/0x540 [ 373.845004] [<ffffffff8120b255>] shrink_zone+0x2f5/0x300 The following comment and associated patch might be relevant to this problem: https://bugzilla.redhat.com/show_bug.cgi?id=1255872#c30 Perhaps you can try that patch and see if the problem still recreates? I managed to reproduce the bug with a fresh 4.5-rc7 kernel, first time (took approx. 100,000 files) so I tried again with the patch from https://bugzilla.redhat.com/show_bug.cgi?id=1255872#c30 and I haven't seen the lockdep splat yet. However, at around file 300,000 I saw a couple of hung task warnings for gfs2_quotad: [ 2340.901808] INFO: task gfs2_quotad:742 blocked for more than 90 seconds. [ 2340.902919] Tainted: G W 4.5.0-rc7-00230-g20698c9-dirty #56 [ 2340.903860] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 2340.905698] gfs2_quotad D ffff880027093b30 0 742 2 0x00000000 [ 2340.906640] ffff880027093b30 ffff88003ff7b6b0 ffff88003db00000 ffff880039610000 [ 2340.907628] ffff880027094000 ffff88003ff7b6b0 ffff880027093bc8 ffffffff81808b00 [ 2340.908595] ffff880027093bb0 ffff880027093b48 ffffffff8180819c 0000000000000002 [ 2340.909558] Call Trace: [ 2340.909897] [<ffffffff81808b00>] ? out_of_line_wait_on_atomic_t+0xf0/0xf0 [ 2340.910728] [<ffffffff8180819c>] schedule+0x3c/0x90 [ 2340.911362] [<ffffffff81808b11>] bit_wait+0x11/0x60 [ 2340.912005] [<ffffffff8180870d>] __wait_on_bit+0x5d/0x90 [ 2340.912666] [<ffffffff810b4e7a>] ? finish_task_switch+0x6a/0x210 [ 2340.913407] [<ffffffff81808b00>] ? out_of_line_wait_on_atomic_t+0xf0/0xf0 [ 2340.914276] [<ffffffff81808872>] out_of_line_wait_on_bit+0x82/0xb0 [ 2340.916050] [<ffffffff810d4eb0>] ? autoremove_wake_function+0x40/0x40 [ 2340.917510] [<ffffffff8140b9f5>] gfs2_glock_dq_wait+0x65/0x70 [ 2340.918251] [<ffffffff81426c61>] gfs2_evict_inode+0x111/0x470 [ 2340.919936] [<ffffffff8180dc67>] ? _raw_spin_unlock+0x27/0x40 [ 2340.921679] [<ffffffff81252368>] evict+0xb8/0x180 [ 2340.923073] [<ffffffff8125246b>] dispose_list+0x3b/0x70 [ 2340.924652] [<ffffffff8125281a>] prune_icache_sb+0x5a/0x80 [ 2340.926292] [<ffffffff81236caf>] super_cache_scan+0x14f/0x1a0 [ 2340.928031] [<ffffffff81420283>] gfs2_quotad+0x113/0x420 [ 2340.929662] [<ffffffff810d4e70>] ? wake_atomic_t_function+0x70/0x70 [ 2340.931265] [<ffffffff81420170>] ? gfs2_wake_up_statfs+0x40/0x40 [ 2340.932724] [<ffffffff810abe1e>] kthread+0xfe/0x120 [ 2340.933691] [<ffffffff810abd20>] ? __kthread_parkme+0x90/0x90 [ 2340.934443] [<ffffffff8180e89f>] ret_from_fork+0x3f/0x70 [ 2340.935127] [<ffffffff810abd20>] ? __kthread_parkme+0x90/0x90 [ 2340.935828] 1 lock held by gfs2_quotad/742: [ 2340.936340] #0: (&type->s_umount_key#36){.+.+..}, at: [<ffffffff81236b2b>] trylock_super+0x1b/0x50 3 years later and this bug isn't reproducing any more so I'm closing this one. |
Description of problem: Lockdep splat when creating a large number of files in a directory in a single node, 5G lock_nolock gfs2 fs with 512 byte blocks. Version-Release number of selected component (if applicable): 4.5.0-0.rc4.git1.1.fc24.x86_64 How reproducible: Not sure yet. Steps to Reproduce: 1. mkfs.gfs2 -b 512 -p lock_nolock /dev/vda 2. mount /dev/vda /mnt/test 3. mkdir /mnt/test/foo 4. seq -w 1000000000 | while read i; do touch /mnt/test/foo/file$i; done Actual results: Lockdep output below. Expected results: Nothing untoward. Additional info: [ 373.800997] ========================================================= [ 373.802133] [ INFO: possible irq lock inversion dependency detected ] [ 373.803463] 4.5.0-0.rc4.git1.1.fc24.x86_64 #1 Tainted: G W [ 373.804872] --------------------------------------------------------- [ 373.805815] touch/17847 just changed the state of lock: [ 373.806583] (&sdp->sd_log_flush_lock){++++.+}, at: [<ffffffffa020ed03>] gfs2_log_reserve+0x1d3/0x380 [gfs2] [ 373.808102] but this lock was taken by another, RECLAIM_FS-safe lock in the past: [ 373.809204] ((&(&gl->gl_work)->work)){+.+.-.} and interrupts could create inverse lock ordering between them. [ 373.810781] [ 373.810781] other info that might help us debug this: [ 373.811737] Possible interrupt unsafe locking scenario: [ 373.811737] [ 373.812524] CPU0 CPU1 [ 373.813050] ---- ---- [ 373.813570] lock(&sdp->sd_log_flush_lock); [ 373.814093] local_irq_disable(); [ 373.814780] lock((&(&gl->gl_work)->work)); [ 373.815581] lock(&sdp->sd_log_flush_lock); [ 373.816392] <Interrupt> [ 373.816696] lock((&(&gl->gl_work)->work)); [ 373.817237] [ 373.817237] *** DEADLOCK *** [ 373.817237] [ 373.817920] 4 locks held by touch/17847: [ 373.818367] #0: (sb_writers#10){.+.+.+}, at: [<ffffffff81292e74>] __sb_start_write+0xb4/0xf0 [ 373.819434] #1: (&sb->s_type->i_mutex_key#15){+.+.+.}, at: [<ffffffff812a040f>] path_openat+0xe7f/0x1f30 [ 373.820617] #2: (sb_internal#2){.+.+.+}, at: [<ffffffff81292e38>] __sb_start_write+0x78/0xf0 [ 373.821676] #3: (&sdp->sd_log_flush_lock){++++.+}, at: [<ffffffffa020ed03>] gfs2_log_reserve+0x1d3/0x380 [gfs2] [ 373.822929] [ 373.822929] the shortest dependencies between 2nd lock and 1st lock: [ 373.823839] -> ((&(&gl->gl_work)->work)){+.+.-.} ops: 103990 { [ 373.824577] HARDIRQ-ON-W at: [ 373.824971] [<ffffffff8110d8c8>] __lock_acquire+0x8f8/0x17e0 [ 373.825851] [<ffffffff8110f17e>] lock_acquire+0xce/0x1c0 [ 373.826688] [<ffffffff810cefa9>] process_one_work+0x219/0x690 [ 373.827585] [<ffffffff810cf46e>] worker_thread+0x4e/0x490 [ 373.828446] [<ffffffff810d6891>] kthread+0x101/0x120 [ 373.829248] [<ffffffff818b845f>] ret_from_fork+0x3f/0x70 [ 373.830091] SOFTIRQ-ON-W at: [ 373.830476] [<ffffffff8110d8f5>] __lock_acquire+0x925/0x17e0 [ 373.831363] [<ffffffff8110f17e>] lock_acquire+0xce/0x1c0 [ 373.832216] [<ffffffff810cefa9>] process_one_work+0x219/0x690 [ 373.833106] [<ffffffff810cf46e>] worker_thread+0x4e/0x490 [ 373.833958] [<ffffffff810d6891>] kthread+0x101/0x120 [ 373.834764] [<ffffffff818b845f>] ret_from_fork+0x3f/0x70 [ 373.835599] IN-RECLAIM_FS-W at: [ 373.836028] [<ffffffff8110d917>] __lock_acquire+0x947/0x17e0 [ 373.836933] [<ffffffff8110f17e>] lock_acquire+0xce/0x1c0 [ 373.837798] [<ffffffff810cdb2e>] flush_work+0x4e/0x320 [ 373.838644] [<ffffffff810cde4f>] flush_delayed_work+0x4f/0x60 [ 373.839571] [<ffffffffa0227a30>] gfs2_evict_inode+0xa0/0x430 [gfs2] [ 373.840558] [<ffffffff812b0308>] evict+0xb8/0x180 [ 373.841356] [<ffffffff812b0414>] dispose_list+0x44/0x70 [ 373.842216] [<ffffffff812b164a>] prune_icache_sb+0x5a/0x80 [ 373.843125] [<ffffffff812937be>] super_cache_scan+0x14e/0x1a0 [ 373.844051] [<ffffffff81205bf6>] shrink_slab.part.42+0x216/0x540 [ 373.845004] [<ffffffff8120b255>] shrink_zone+0x2f5/0x300 [ 373.845887] [<ffffffff8120c744>] kswapd+0x564/0xb60 [ 373.846706] [<ffffffff810d6891>] kthread+0x101/0x120 [ 373.847552] [<ffffffff818b845f>] ret_from_fork+0x3f/0x70 [ 373.848474] INITIAL USE at: [ 373.848858] [<ffffffff8110d59d>] __lock_acquire+0x5cd/0x17e0 [ 373.849734] [<ffffffff8110f17e>] lock_acquire+0xce/0x1c0 [ 373.850561] [<ffffffff810cefa9>] process_one_work+0x219/0x690 [ 373.851448] [<ffffffff810cf46e>] worker_thread+0x4e/0x490 [ 373.852332] [<ffffffff810d6891>] kthread+0x101/0x120 [ 373.853127] [<ffffffff818b845f>] ret_from_fork+0x3f/0x70 [ 373.853959] } [ 373.854168] ... key at: [<ffffffffa023ced8>] __key.40559+0x0/0xffffffffffff2128 [gfs2] [ 373.855164] ... acquired at: [ 373.855518] [<ffffffff8110f17e>] lock_acquire+0xce/0x1c0 [ 373.856545] [<ffffffff818b58fa>] down_write+0x5a/0xc0 [ 373.857339] [<ffffffffa020f77e>] gfs2_log_flush+0x4e/0x8d0 [gfs2] [ 373.858108] [<ffffffffa020d75c>] inode_go_sync+0x8c/0x130 [gfs2] [ 373.858853] [<ffffffffa020b946>] do_xmote+0x176/0x340 [gfs2] [ 373.859552] [<ffffffffa020bc00>] run_queue+0xf0/0x390 [gfs2] [ 373.860262] [<ffffffffa020bef9>] glock_work_func+0x59/0x120 [gfs2] [ 373.861021] [<ffffffff810cefe2>] process_one_work+0x252/0x690 [ 373.861733] [<ffffffff810cf46e>] worker_thread+0x4e/0x490 [ 373.862396] [<ffffffff810d6891>] kthread+0x101/0x120 [ 373.863014] [<ffffffff818b845f>] ret_from_fork+0x3f/0x70 [ 373.863661] [ 373.863856] -> (&sdp->sd_log_flush_lock){++++.+} ops: 297943 { [ 373.864584] HARDIRQ-ON-W at: [ 373.864973] [<ffffffff8110d8c8>] __lock_acquire+0x8f8/0x17e0 [ 373.865832] [<ffffffff8110f17e>] lock_acquire+0xce/0x1c0 [ 373.866646] [<ffffffff818b58fa>] down_write+0x5a/0xc0 [ 373.867434] [<ffffffffa020f77e>] gfs2_log_flush+0x4e/0x8d0 [gfs2] [ 373.868862] [<ffffffffa0210242>] gfs2_logd+0x242/0x2a0 [gfs2] [ 373.869820] [<ffffffff810d6891>] kthread+0x101/0x120 [ 373.870600] [<ffffffff818b845f>] ret_from_fork+0x3f/0x70 [ 373.871432] HARDIRQ-ON-R at: [ 373.871821] [<ffffffff8110d526>] __lock_acquire+0x556/0x17e0 [ 373.872667] [<ffffffff8110f17e>] lock_acquire+0xce/0x1c0 [ 373.873486] [<ffffffff818b5851>] down_read+0x51/0xa0 [ 373.874272] [<ffffffffa020ed03>] gfs2_log_reserve+0x1d3/0x380 [gfs2] [ 373.875217] [<ffffffffa022b05c>] gfs2_trans_begin+0xcc/0x140 [gfs2] [ 373.876157] [<ffffffffa021b1ac>] gfs2_create_inode+0x76c/0xfa0 [gfs2] [ 373.877116] [<ffffffffa021ba67>] gfs2_mkdir+0x47/0x50 [gfs2] [ 373.877989] [<ffffffff8129c025>] vfs_mkdir+0xc5/0x150 [ 373.878792] [<ffffffff812a317a>] SyS_mkdir+0x7a/0xf0 [ 373.879564] [<ffffffff818b80f2>] entry_SYSCALL_64_fastpath+0x12/0x72 [ 373.880498] SOFTIRQ-ON-W at: [ 373.880878] [<ffffffff8110d8f5>] __lock_acquire+0x925/0x17e0 [ 373.881744] [<ffffffff8110f17e>] lock_acquire+0xce/0x1c0 [ 373.882557] [<ffffffff818b58fa>] down_write+0x5a/0xc0 [ 373.883351] [<ffffffffa020f77e>] gfs2_log_flush+0x4e/0x8d0 [gfs2] [ 373.884261] [<ffffffffa0210242>] gfs2_logd+0x242/0x2a0 [gfs2] [ 373.885130] [<ffffffff810d6891>] kthread+0x101/0x120 [ 373.885916] [<ffffffff818b845f>] ret_from_fork+0x3f/0x70 [ 373.886737] SOFTIRQ-ON-R at: [ 373.887113] [<ffffffff8110d8f5>] __lock_acquire+0x925/0x17e0 [ 373.887972] [<ffffffff8110f17e>] lock_acquire+0xce/0x1c0 [ 373.888789] [<ffffffff818b5851>] down_read+0x51/0xa0 [ 373.889561] [<ffffffffa020ed03>] gfs2_log_reserve+0x1d3/0x380 [gfs2] [ 373.890516] [<ffffffffa022b05c>] gfs2_trans_begin+0xcc/0x140 [gfs2] [ 373.891452] [<ffffffffa021b1ac>] gfs2_create_inode+0x76c/0xfa0 [gfs2] [ 373.892419] [<ffffffffa021ba67>] gfs2_mkdir+0x47/0x50 [gfs2] [ 373.893292] [<ffffffff8129c025>] vfs_mkdir+0xc5/0x150 [ 373.894081] [<ffffffff812a317a>] SyS_mkdir+0x7a/0xf0 [ 373.894860] [<ffffffff818b80f2>] entry_SYSCALL_64_fastpath+0x12/0x72 [ 373.895806] RECLAIM_FS-ON-R at: [ 373.896210] [<ffffffff8110ca96>] mark_held_locks+0x76/0xa0 [ 373.897088] [<ffffffff8110fb1d>] lockdep_trace_alloc+0x7d/0xe0 [ 373.897992] [<ffffffff811f8fe3>] __alloc_pages_nodemask+0xb3/0xe50 [ 373.898938] [<ffffffff81252eeb>] alloc_pages_current+0x9b/0x1c0 [ 373.899854] [<ffffffff811f3444>] __get_free_pages+0x14/0x50 [ 373.901123] [<ffffffff810775b5>] pte_alloc_one_kernel+0x15/0x20 [ 373.902240] [<ffffffff81228a8d>] __pte_alloc_kernel+0x1d/0x100 [ 373.903157] [<ffffffff8123b68a>] vmap_page_range_noflush+0x2ea/0x340 [ 373.904137] [<ffffffff8123b716>] map_vm_area+0x36/0x50 [ 373.904972] [<ffffffff8123dcb0>] __vmalloc_node_range+0x1b0/0x270 [ 373.905921] [<ffffffff8123ddba>] __vmalloc+0x4a/0x50 [ 373.906735] [<ffffffffa01ffdd9>] gfs2_dir_get_hash_table+0x379/0x3e0 [gfs2] [ 373.907790] [<ffffffffa01ffe56>] get_leaf_nr+0x16/0x30 [gfs2] [ 373.908690] [<ffffffffa01fffe0>] gfs2_dirent_search+0xb0/0x1b0 [gfs2] [ 373.909678] [<ffffffffa02018c8>] gfs2_dir_add+0x468/0x820 [gfs2] [ 373.910611] [<ffffffffa021b8f9>] gfs2_create_inode+0xeb9/0xfa0 [gfs2] [ 373.911595] [<ffffffffa021c2fd>] gfs2_atomic_open+0x6d/0xe0 [gfs2] [ 373.912789] [<ffffffff812a0dc2>] path_openat+0x1832/0x1f30 [ 373.913653] [<ffffffff812a2a61>] do_filp_open+0x91/0x100 [ 373.914513] [<ffffffff8128e530>] do_sys_open+0x130/0x220 [ 373.915368] [<ffffffff8128e63e>] SyS_open+0x1e/0x20 [ 373.916172] [<ffffffff818b80f2>] entry_SYSCALL_64_fastpath+0x12/0x72 [ 373.917154] INITIAL USE at: [ 373.917523] [<ffffffff8110d59d>] __lock_acquire+0x5cd/0x17e0 [ 373.918387] [<ffffffff8110f17e>] lock_acquire+0xce/0x1c0 [ 373.919213] [<ffffffff818b5851>] down_read+0x51/0xa0 [ 373.919989] [<ffffffffa020ed03>] gfs2_log_reserve+0x1d3/0x380 [gfs2] [ 373.920938] [<ffffffffa022b05c>] gfs2_trans_begin+0xcc/0x140 [gfs2] [ 373.921869] [<ffffffffa021b1ac>] gfs2_create_inode+0x76c/0xfa0 [gfs2] [ 373.922813] [<ffffffffa021ba67>] gfs2_mkdir+0x47/0x50 [gfs2] [ 373.923663] [<ffffffff8129c025>] vfs_mkdir+0xc5/0x150 [ 373.924445] [<ffffffff812a317a>] SyS_mkdir+0x7a/0xf0 [ 373.925230] [<ffffffff818b80f2>] entry_SYSCALL_64_fastpath+0x12/0x72 [ 373.926172] } [ 373.926371] ... key at: [<ffffffffa023d138>] __key.38384+0x0/0xffffffffffff1ec8 [gfs2] [ 373.927360] ... acquired at: [ 373.927704] [<ffffffff8110bbd9>] check_usage_backwards+0x149/0x160 [ 373.928459] [<ffffffff8110c810>] mark_lock+0x3d0/0x5e0 [ 373.929096] [<ffffffff8110ca96>] mark_held_locks+0x76/0xa0 [ 373.929771] [<ffffffff8110fb1d>] lockdep_trace_alloc+0x7d/0xe0 [ 373.930478] [<ffffffff811f8fe3>] __alloc_pages_nodemask+0xb3/0xe50 [ 373.931231] [<ffffffff81252eeb>] alloc_pages_current+0x9b/0x1c0 [ 373.931955] [<ffffffff811f3444>] __get_free_pages+0x14/0x50 [ 373.932637] [<ffffffff810775b5>] pte_alloc_one_kernel+0x15/0x20 [ 373.933365] [<ffffffff81228a8d>] __pte_alloc_kernel+0x1d/0x100 [ 373.934077] [<ffffffff8123b68a>] vmap_page_range_noflush+0x2ea/0x340 [ 373.934847] [<ffffffff8123b716>] map_vm_area+0x36/0x50 [ 373.935480] [<ffffffff8123dcb0>] __vmalloc_node_range+0x1b0/0x270 [ 373.936223] [<ffffffff8123ddba>] __vmalloc+0x4a/0x50 [ 373.936839] [<ffffffffa01ffdd9>] gfs2_dir_get_hash_table+0x379/0x3e0 [gfs2] [ 373.937677] [<ffffffffa01ffe56>] get_leaf_nr+0x16/0x30 [gfs2] [ 373.938382] [<ffffffffa01fffe0>] gfs2_dirent_search+0xb0/0x1b0 [gfs2] [ 373.939164] [<ffffffffa02018c8>] gfs2_dir_add+0x468/0x820 [gfs2] [ 373.939899] [<ffffffffa021b8f9>] gfs2_create_inode+0xeb9/0xfa0 [gfs2] [ 373.940679] [<ffffffffa021c2fd>] gfs2_atomic_open+0x6d/0xe0 [gfs2] [ 373.941435] [<ffffffff812a0dc2>] path_openat+0x1832/0x1f30 [ 373.942108] [<ffffffff812a2a61>] do_filp_open+0x91/0x100 [ 373.942760] [<ffffffff8128e530>] do_sys_open+0x130/0x220 [ 373.943405] [<ffffffff8128e63e>] SyS_open+0x1e/0x20 [ 373.944009] [<ffffffff818b80f2>] entry_SYSCALL_64_fastpath+0x12/0x72 [ 373.944776] [ 373.944956] [ 373.944956] stack backtrace: [ 373.945458] CPU: 0 PID: 17847 Comm: touch Tainted: G W 4.5.0-0.rc4.git1.1.fc24.x86_64 #1 [ 373.946507] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 373.947541] 0000000000000086 00000000f4065c31 ffff880025fc3560 ffffffff8144daf5 [ 373.949146] ffffffff82f7b540 ffff880025fc35c0 ffff880025fc35a0 ffffffff811eac2a [ 373.950733] ffff88003b908d50 ffff88003b908d50 ffff88003b908000 ffffffff81ca402f [ 373.952330] Call Trace: [ 373.952862] [<ffffffff8144daf5>] dump_stack+0x86/0xc1 [ 373.953955] [<ffffffff811eac2a>] print_irq_inversion_bug.part.41+0x1a5/0x1b1 [ 373.955444] [<ffffffff8110bbd9>] check_usage_backwards+0x149/0x160 [ 373.956766] [<ffffffff81026b59>] ? sched_clock+0x9/0x10 [ 373.957874] [<ffffffff8110c810>] mark_lock+0x3d0/0x5e0 [ 373.958973] [<ffffffff8110ba90>] ? check_usage_forwards+0x160/0x160 [ 373.960297] [<ffffffff8110ca96>] mark_held_locks+0x76/0xa0 [ 373.961459] [<ffffffff8110fb1d>] lockdep_trace_alloc+0x7d/0xe0 [ 373.962705] [<ffffffff811f8fe3>] __alloc_pages_nodemask+0xb3/0xe50 [ 373.964027] [<ffffffff8112cb05>] ? rcu_read_lock_sched_held+0x45/0x80 [ 373.965394] [<ffffffff811f92f7>] ? __alloc_pages_nodemask+0x3c7/0xe50 [ 373.966758] [<ffffffff81252eeb>] alloc_pages_current+0x9b/0x1c0 [ 373.968014] [<ffffffff811f3444>] __get_free_pages+0x14/0x50 [ 373.969192] [<ffffffff810775b5>] pte_alloc_one_kernel+0x15/0x20 [ 373.970458] [<ffffffff81228a8d>] __pte_alloc_kernel+0x1d/0x100 [ 373.971704] [<ffffffff8123b68a>] vmap_page_range_noflush+0x2ea/0x340 [ 373.972919] [<ffffffff8123b716>] map_vm_area+0x36/0x50 [ 373.973516] [<ffffffff8123dcb0>] __vmalloc_node_range+0x1b0/0x270 [ 373.974229] [<ffffffffa01ffdd9>] ? gfs2_dir_get_hash_table+0x379/0x3e0 [gfs2] [ 373.975056] [<ffffffff8121bee1>] ? kmalloc_order_trace+0xd1/0x140 [ 373.975763] [<ffffffffa01ff000>] ? gfs2_check_dirent+0xf0/0xf0 [gfs2] [ 373.976509] [<ffffffff8123ddba>] __vmalloc+0x4a/0x50 [ 373.977095] [<ffffffffa01ffdd9>] ? gfs2_dir_get_hash_table+0x379/0x3e0 [gfs2] [ 373.977928] [<ffffffffa01ffdd9>] gfs2_dir_get_hash_table+0x379/0x3e0 [gfs2] [ 373.978741] [<ffffffffa022b551>] ? gfs2_trans_add_meta+0xa1/0x270 [gfs2] [ 373.979517] [<ffffffffa01ff000>] ? gfs2_check_dirent+0xf0/0xf0 [gfs2] [ 373.980269] [<ffffffffa01ffe56>] get_leaf_nr+0x16/0x30 [gfs2] [ 373.980944] [<ffffffffa01fffe0>] gfs2_dirent_search+0xb0/0x1b0 [gfs2] [ 373.981691] [<ffffffffa02018c8>] gfs2_dir_add+0x468/0x820 [gfs2] [ 373.982403] [<ffffffffa021b8f9>] gfs2_create_inode+0xeb9/0xfa0 [gfs2] [ 373.983160] [<ffffffffa021ab48>] ? gfs2_create_inode+0x108/0xfa0 [gfs2] [ 373.983936] [<ffffffffa021b2e9>] ? gfs2_create_inode+0x8a9/0xfa0 [gfs2] [ 373.984703] [<ffffffffa021c2fd>] gfs2_atomic_open+0x6d/0xe0 [gfs2] [ 373.985421] [<ffffffff812a0dc2>] path_openat+0x1832/0x1f30 [ 373.986061] [<ffffffff812b3380>] ? __alloc_fd+0x100/0x200 [ 373.986685] [<ffffffff812a2a61>] do_filp_open+0x91/0x100 [ 373.987320] [<ffffffff818b7637>] ? _raw_spin_unlock+0x27/0x40 [ 373.987996] [<ffffffff812b3380>] ? __alloc_fd+0x100/0x200 [ 373.988623] [<ffffffff8128e530>] do_sys_open+0x130/0x220 [ 373.989247] [<ffffffff8128e63e>] SyS_open+0x1e/0x20 [ 373.989823] [<ffffffff818b80f2>] entry_SYSCALL_64_fastpath+0x12/0x72