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[sodabrew <1285427@xxxxxxxxxxxxxxxxxx>]

[6448078.086457] BUG: soft lockup - CPU#23 stuck for 22s! [ruby:19536]s data and manage this system at https://landscape.canonical.com/
[6448078.093543] Modules linked in: btrfs(F) zlib_deflate(F) ufs(F) qnx4(F) hfsplus(F) hfs(F) minix(F) ntfs(F) msdos(F) jfs(F) xfs(F) reiserfs(F) ext2(F) ipmi_devintf(F) ipmi_si(F) ipmi_msghandler(F) gpio_ich(F) psmouse(F) serio_raw(F) joydev(F) shpchp(F) mei_me(F) mei(F) lpc_ich(F) ioatdma(F) wmi(F) mac_hid(F) lp(F) parport(F) raid10(F) raid456(F) async_pq(F) async_xor(F) hid_generic(F) usbhid(F) xor(F) async_memcpy(F) async_raid6_recov(F) hid(F) raid6_pq(F) igb(F) async_tx(F) dca(F) i2c_algo_bit(F) raid1(F) ptp(F) raid0(F) ahci(F) libahci(F) pps_core(F) multipath(F) linear(F)
[6448078.154644] CPU: 23 PID: 19536 Comm: ruby Tainted: GF     D W    3.11.0-13-generic #20~precise2-Ubuntu
[6448078.165358] Hardware name: Supermicro X9DRW/X9DRW, BIOS 3.0a 08/08/2013
[6448078.173040] task: ffff880103729770 ti: ffff88084f93a000 task.ti: ffff88084f93a000
[6448078.181712] RIP: 0010:[<ffffffff810cb3f6>]  [<ffffffff810cb3f6>] generic_exec_single+0x86/0xb0
[6448078.191725] RSP: 0018:ffff88084f93bbb8  EFLAGS: 00000202
[6448078.197945] RAX: 0000000000000100 RBX: 0000000000000296 RCX: 0000000000000008
[6448078.206230] RDX: 0000000000000008 RSI: 0000000000000100 RDI: 0000000000000296
[6448078.214515] RBP: ffff88084f93bbf8 R08: ffff88085fdedda0 R09: 0000000000000100
[6448078.222789] R10: ffff88087fffbd80 R11: 000000000000006c R12: 0000000000000296
[6448078.231075] R13: ffff88084f93bb88 R14: ffff88085fcedda0 R15: ffff88085fdedd80
[6448078.239359] FS:  0000000000000000(0000) GS:ffff88085fde0000(0000) knlGS:0000000000000000istory|tail -n1|sed -e '\''s/^\s*[0-9]\+\s*//;s/[;&|]\s*alert$//'[6448078.248712] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[6448078.255419] CR2: 00007f27cb68b000 CR3: 0000000001c0d000 CR4: 00000000001407e0
[6448078.263693] Stack:lor=auto'
[6448078.266221]  ffff88084f93bbd8 ffff88085fcf5040 ffff88024b9a9f20 0000000000000007
[6448078.275091]  ffffffff8105ae80 0000000000000017 ffffffff81d03be0 0000000000000017
[6448078.283969]  ffff88084f93bc68 ffffffff810cb4f5 ffff880103729770 0000000001c03025
[6448078.292843] Call Trace:
[6448078.295858]  [<ffffffff8105ae80>] ? leave_mm+0x70/0x70
[6448078.301887]  [<ffffffff810cb4f5>] smp_call_function_single+0xd5/0x160
[6448078.309374]  [<ffffffff8105ae80>] ? leave_mm+0x70/0x70
[6448078.315403]  [<ffffffff8105ae80>] ? leave_mm+0x70/0x70
[6448078.321431]  [<ffffffff810cb907>] smp_call_function_many+0x287/0x2d0
[6448078.328812]  [<ffffffff8116f8cd>] ? free_pgd_range+0x41d/0x4c0 status
[6448078.335620]  [<ffffffff8105afde>] native_flush_tlb_others+0x2e/0x30
[6448078.342914]  [<ffffffff8105b0c0>] flush_tlb_mm_range+0x70/0x230
[6448078.349819]  [<ffffffff8116f23c>] tlb_flush_mmu+0x3c/0xa0
[6448078.356141]  [<ffffffff8116f2b4>] tlb_finish_mmu+0x14/0x40
[6448078.362558]  [<ffffffff8117a46b>] exit_mmap+0xcb/0x170
[6448078.368588]  [<ffffffff81062fda>] mmput.part.21+0x4a/0x110
[6448078.375005]  [<ffffffff810630c9>] mmput+0x29/0x30
[6448078.380547]  [<ffffffff81067d36>] exit_mm+0x146/0x190
[6448078.386480]  [<ffffffff8110b25b>] ? taskstats_exit+0x1cb/0x270
[6448078.393287]  [<ffffffff81067ee3>] do_exit+0x163/0x480
[6448078.399221]  [<ffffffff81076fa2>] ? zap_other_threads+0x82/0xa0
[6448078.406124]  [<ffffffff81068294>] do_group_exit+0x44/0xa0
[6448078.412446]  [<ffffffff81068307>] SyS_exit_group+0x17/0x20
[6448078.418864]  [<ffffffff8174ed1d>] system_call_fastpath+0x1a/0x1f
[6448078.425863] Code: 89 5d 08 4c 89 2b 48 89 53 08 48 89 1a e8 f3 a4 67 00 4c 3b 6d c8 74 2b 45 85 ff 75 0a eb 0e 66 0f 1f 44 00 00 f3 90 f6 43 20 01 <75> f8 48 8b 5d d8 4c 8b 65 e0 4c 8b 6d e8 4c 8b 75 f0 4c 8b 7d
[6448081.875998] BUG: soft lockup - CPU#8 stuck for 23s! [java:29397]
[6448081.883000] Modules linked in: btrfs(F) zlib_deflate(F) ufs(F) qnx4(F) hfsplus(F) hfs(F) minix(F) ntfs(F) msdos(F) jfs(F) xfs(F) reiserfs(F) ext2(F) ipmi_devintf(F) ipmi_si(F) ipmi_msghandler(F) gpio_ich(F) psmouse(F) serio_raw(F) joydev(F) shpchp(F) mei_me(F) mei(F) lpc_ich(F) ioatdma(F) wmi(F) mac_hid(F) lp(F) parport(F) raid10(F) raid456(F) async_pq(F) async_xor(F) hid_generic(F) usbhid(F) xor(F) async_memcpy(F) async_raid6_recov(F) hid(F) raid6_pq(F) igb(F) async_tx(F) dca(F) i2c_algo_bit(F) raid1(F) ptp(F) raid0(F) ahci(F) libahci(F) pps_core(F) multipath(F) linear(F)
[6448081.944353] CPU: 8 PID: 29397 Comm: java Tainted: GF     D W    3.11.0-13-generic #20~precise2-Ubuntu
[6448081.954974] Hardware name: Supermicro X9DRW/X9DRW, BIOS 3.0a 08/08/2013
[6448081.962656] task: ffff880881ad8000 ti: ffff880f698f4000 task.ti: ffff880f698f4000
[6448081.971329] RIP: 0010:[<ffffffff810cb3f2>]  [<ffffffff810cb3f2>] generic_exec_single+0x82/0xb0
[6448081.981349] RSP: 0000:ffff880f698f58d8  EFLAGS: 00000202
[6448081.987574] RAX: 0000000000000100 RBX: 0000000000000296 RCX: 0000000000000002
[6448081.995862] RDX: 0000000000000002 RSI: 0000000000000100 RDI: 0000000000000296
[6448082.004149] RBP: ffff880f698f5918 R08: ffff88107fc0dda0 R09: 0000000000000100
[6448082.012436] R10: 0000000000003717 R11: 0000000000017960 R12: 0000000000000296
[6448082.020723] R13: ffff880f698f58a8 R14: ffff88085fc2dda0 R15: ffff88107fc0dd80
[6448082.029010] FS:  00007f0889cdc700(0000) GS:ffff88107fc00000(0000) knlGS:0000000000000000
[6448082.038366] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[6448082.045076] CR2: 00000000fba173f0 CR3: 000000105293c000 CR4: 00000000001407e0
[6448082.053362] Stack:
[6448082.055892]  0000000000000000 ffff88085fc35040 000000177fffbd80 0000000000000001
[6448082.064770]  ffffffff8105ae80 0000000000000008 ffffffff81d03be0 0000000000000008
[6448082.073651]  ffff880f698f5988 ffffffff810cb4f5 ffff880f698f5a10 0000000000015040
[6448082.082522] Call Trace:
[6448082.085541]  [<ffffffff8105ae80>] ? leave_mm+0x70/0x70
[6448082.091573]  [<ffffffff810cb4f5>] smp_call_function_single+0xd5/0x160
[6448082.099061]  [<ffffffff8105ae80>] ? leave_mm+0x70/0x70
[6448082.105094]  [<ffffffff8105ae80>] ? leave_mm+0x70/0x70
[6448082.111124]  [<ffffffff810cb907>] smp_call_function_many+0x287/0x2d0
[6448082.118518]  [<ffffffff811510c7>] ? get_page_from_freelist+0x1e7/0x5c0
[6448082.126106]  [<ffffffff8105afde>] native_flush_tlb_others+0x2e/0x30
[6448082.133401]  [<ffffffff8105b2e1>] flush_tlb_page+0x61/0xb0
[6448082.139820]  [<ffffffff81183263>] ptep_clear_flush+0x43/0x60
[6448082.146435]  [<ffffffff8117deef>] try_to_unmap_one+0xff/0x4a0
[6448082.153148]  [<ffffffff8117ee88>] try_to_unmap_anon+0xa8/0x130
[6448082.159957]  [<ffffffff8117efb5>] try_to_unmap+0x55/0x70
[6448082.160114] BUG: soft lockup - CPU#28 stuck for 22s! [haproxy:23595]
[6448082.160133] Modules linked in: btrfs(F) zlib_deflate(F) ufs(F) qnx4(F) hfsplus(F) hfs(F) minix(F) ntfs(F) msdos(F) jfs(F) xfs(F) reiserfs(F) ext2(F) ipmi_devintf(F) ipmi_si(F) ipmi_msghandler(F) gpio_ich(F) psmouse(F) serio_raw(F) joydev(F) shpchp(F) mei_me(F) mei(F) lpc_ich(F) ioatdma(F) wmi(F) mac_hid(F) lp(F) parport(F) raid10(F) raid456(F) async_pq(F) async_xor(F) hid_generic(F) usbhid(F) xor(F) async_memcpy(F) async_raid6_recov(F) hid(F) raid6_pq(F) igb(F) async_tx(F) dca(F) i2c_algo_bit(F) raid1(F) ptp(F) raid0(F) ahci(F) libahci(F) pps_core(F) multipath(F) linear(F)
[6448082.160135] CPU: 28 PID: 23595 Comm: haproxy Tainted: GF     D W    3.11.0-13-generic #20~precise2-Ubuntu
[6448082.160135] Hardware name: Supermicro X9DRW/X9DRW, BIOS 3.0a 08/08/2013
[6448082.160136] task: ffff881051682ee0 ti: ffff88104feb4000 task.ti: ffff88104feb4000
[6448082.160138] RIP: 0010:[<ffffffff810cb8ee>]  [<ffffffff810cb8ee>] smp_call_function_many+0x26e/0x2d0
[6448082.160139] RSP: 0018:ffff88104feb59f8  EFLAGS: 00000202
[6448082.160140] RAX: 0000000000000000 RBX: ffffffff81d03be0 RCX: ffff88085fc18900
[6448082.160141] RDX: 0000000000000000 RSI: 0000000000000100 RDI: 0000000000000100
[6448082.160142] RBP: ffff88104feb5a58 R08: ffff88107fd95090 R09: 0000000000000000
[6448082.160142] R10: 0000000000000004 R11: 0000000000000000 R12: 000000000000001c
[6448082.160143] R13: 00000100000000fc R14: 000000000000dda0 R15: 0000001c4feb5a30
[6448082.160145] FS:  00007f7b3fa7b700(0000) GS:ffff88107fd80000(0000) knlGS:0000000000000000
[6448082.160145] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[6448082.160146] CR2: 0000000001f01070 CR3: 000000104fb33000 CR4: 00000000001407e0
[6448082.160147] Stack:
[6448082.160151]  ffff88107fdd5050 ffff88107fdd5040 ffff88107fdd8900 000000010000001e
[6448082.160154]  01ff8810516835c0 ffff88107fd950a8 ffff88107fff8d80 ffffffff811519c0
[6448082.160157]  0000000000000000 ffffffff81f99020 000000000000001c 0000000000000000
[6448082.160158] Call Trace:
[6448082.160161]  [<ffffffff811519c0>] ? page_alloc_cpu_notify+0x60/0x60
[6448082.160163]  [<ffffffff810cb987>] on_each_cpu_mask+0x37/0x70
[6448082.160166]  [<ffffffff8114df75>] drain_all_pages+0xb5/0xc0
[6448082.160168]  [<ffffffff8115207b>] __alloc_pages_nodemask+0x69b/0x9a0
[6448082.160172]  [<ffffffff8118fc2a>] alloc_pages_current+0xba/0x170
[6448082.160175]  [<ffffffff811988e5>] allocate_slab+0x135/0x1a0
[6448082.160177]  [<ffffffff81198980>] new_slab+0x30/0x1a0
[6448082.160180]  [<ffffffff81731307>] __slab_alloc+0x18a/0x2c2
[6448082.160183]  [<ffffffff81623068>] ? sk_prot_alloc+0x48/0x1b0
[6448082.160185]  [<ffffffff8108c7a8>] ? hrtimer_try_to_cancel+0x58/0x110
[6448082.160188]  [<ffffffff81623068>] ? sk_prot_alloc+0x48/0x1b0
[6448082.160190]  [<ffffffff8119c242>] kmem_cache_alloc+0x142/0x150
[6448082.160193]  [<ffffffff81742d58>] ? schedule_hrtimeout_range_clock+0xc8/0x170
[6448082.160196]  [<ffffffff81623068>] sk_prot_alloc+0x48/0x1b0
[6448082.160198]  [<ffffffff816236c9>] sk_alloc+0x39/0xb0
[6448082.160201]  [<ffffffff816a4b8c>] inet_create+0x12c/0x350
[6448082.160203]  [<ffffffff817458be>] ? _raw_spin_lock+0xe/0x20
[6448082.160205]  [<ffffffff8161f8cd>] __sock_create+0x10d/0x200
[6448082.160208]  [<ffffffff8161fa20>] sock_create+0x30/0x40
[6448082.160210]  [<ffffffff816205d6>] SyS_socket+0x36/0xb0
[6448082.160213]  [<ffffffff8174ed1d>] system_call_fastpath+0x1a/0x1f
[6448082.160234] Code: 48 63 d0 e8 e5 93 2b 00 3b 05 f3 94 c3 00 0f 8d 1a fe ff ff 48 63 d0 49 8b 0c 24 48 03 0c d5 e0 2e d0 81 f6 41 20 01 74 cc f3 90 <f6> 41 20 01 74 c4 eb f6 0f b6 4d c7 4c 89 f2 4c 89 ee 89 df e8
[6448082.204129] BUG: soft lockup - CPU#31 stuck for 22s! [java:29388]
[6448082.204142] Modules linked in: btrfs(F) zlib_deflate(F) ufs(F) qnx4(F) hfsplus(F) hfs(F) minix(F) ntfs(F) msdos(F) jfs(F) xfs(F) reiserfs(F) ext2(F) ipmi_devintf(F) ipmi_si(F) ipmi_msghandler(F) gpio_ich(F) psmouse(F) serio_raw(F) joydev(F) shpchp(F) mei_me(F) mei(F) lpc_ich(F) ioatdma(F) wmi(F) mac_hid(F) lp(F) parport(F) raid10(F) raid456(F) async_pq(F) async_xor(F) hid_generic(F) usbhid(F) xor(F) async_memcpy(F) async_raid6_recov(F) hid(F) raid6_pq(F) igb(F) async_tx(F) dca(F) i2c_algo_bit(F) raid1(F) ptp(F) raid0(F) ahci(F) libahci(F) pps_core(F) multipath(F) linear(F)
[6448082.204143] CPU: 31 PID: 29388 Comm: java Tainted: GF     D W    3.11.0-13-generic #20~precise2-Ubuntu
[6448082.204143] Hardware name: Supermicro X9DRW/X9DRW, BIOS 3.0a 08/08/2013
[6448082.204144] task: ffff88088497aee0 ti: ffff88088102a000 task.ti: ffff88088102a000
[6448082.204146] RIP: 0010:[<ffffffff81050ff2>]  [<ffffffff81050ff2>] __ticket_spin_lock+0x22/0x30
[6448082.204147] RSP: 0000:ffff88088102bcb8  EFLAGS: 00000297
[6448082.204147] RAX: 000000000000f1b8 RBX: ffff881053e6a000 RCX: 000000055b271166
[6448082.204148] RDX: 000000000000f1b9 RSI: ffff8808529fa450 RDI: ffffea0022060130
[6448082.204149] RBP: ffff88088102bcb8 R08: ffff8808818040e0 R09: ffff880882f3cee8
[6448082.204149] R10: 0000000000000008 R11: 0000000000000000 R12: 0000000000000002
[6448082.204149] R13: 0000000000014580 R14: 000000020000001f R15: ffff88088102bce4
[6448082.204150] FS:  00007f08909c9700(0000) GS:ffff88107fde0000(0000) knlGS:0000000000000000
[6448082.204151] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[6448082.204151] CR2: 00000000fba1caa8 CR3: 000000105293c000 CR4: 00000000001407e0
[6448082.204152] Stack:
[6448082.204154]  ffff88088102bcc8 ffffffff817458be ffff88088102bd28 ffffffff81172a0e
[6448082.204156]  ffff88088102bce8 ffffffff81051089 ffff88088102bd08 ffff8807f5ed9f80
[6448082.204158]  ffff88107fdee200 ffff8808529fa450 00000000fba1caa8 000000055b271166
[6448082.204158] Call Trace:
[6448082.204160]  [<ffffffff817458be>] _raw_spin_lock+0xe/0x20
[6448082.204162]  [<ffffffff81172a0e>] do_numa_page+0x5e/0x140
[6448082.204164]  [<ffffffff81051089>] ? default_spin_lock_flags+0x9/0x10
[6448082.204165]  [<ffffffff81172c9c>] handle_pte_fault+0x1ac/0x230
[6448082.204167]  [<ffffffff8108c7a8>] ? hrtimer_try_to_cancel+0x58/0x110
[6448082.204168]  [<ffffffff81174190>] handle_mm_fault+0x2a0/0x3e0
[6448082.204170]  [<ffffffff81742d58>] ? schedule_hrtimeout_range_clock+0xc8/0x170
[6448082.204172]  [<ffffffff81749d4f>] __do_page_fault+0x1af/0x560
[6448082.204174]  [<ffffffff811fb36c>] ? ep_poll+0x1bc/0x3b0
[6448082.204176]  [<ffffffff81099fc0>] ? try_to_wake_up+0x210/0x210
[6448082.204178]  [<ffffffff8174a137>] do_page_fault+0x37/0x70
[6448082.204180]  [<ffffffff817461d8>] page_fault+0x28/0x30
[6448082.204192] Code: 90 90 90 90 90 90 90 90 90 55 b8 00 00 01 00 48 89 e5 f0 0f c1 07 89 c2 c1 ea 10 66 39 c2 74 13 66 0f 1f 84 00 00 00 00 00 f3 90 <0f> b7 07 66 39 d0 75 f6 5d c3 0f 1f 40 00 8b 17 55 31 c0 48 89
[6448082.851911]  [<ffffffff811a03c6>] __unmap_and_move+0x116/0x290
[6448082.858711]  [<ffffffff811a05b6>] unmap_and_move+0x76/0x180
[6448082.865229]  [<ffffffff811a08c1>] migrate_pages+0xa1/0x1e0
[6448082.871649]  [<ffffffff8119edf0>] ? ftrace_raw_event_mm_migrate_pages+0xe0/0xe0
[6448082.880132]  [<ffffffff811a13b4>] migrate_misplaced_page+0xb4/0xe0
[6448082.887330]  [<ffffffff81172a83>] do_numa_page+0xd3/0x140
[6448082.893653]  [<ffffffff81051089>] ? default_spin_lock_flags+0x9/0x10
[6448082.901047]  [<ffffffff81172c9c>] handle_pte_fault+0x1ac/0x230
[6448082.907856]  [<ffffffff8108c7a8>] ? hrtimer_try_to_cancel+0x58/0x110
[6448082.915248]  [<ffffffff81174190>] handle_mm_fault+0x2a0/0x3e0
[6448082.921960]  [<ffffffff81742d58>] ? schedule_hrtimeout_range_clock+0xc8/0x170
[6448082.930249]  [<ffffffff81749d4f>] __do_page_fault+0x1af/0x560
[6448082.936960]  [<ffffffff811fb36c>] ? ep_poll+0x1bc/0x3b0
[6448082.943089]  [<ffffffff81099fc0>] ? try_to_wake_up+0x210/0x210
[6448082.949899]  [<ffffffff8174a137>] do_page_fault+0x37/0x70
[6448082.956222]  [<ffffffff817461d8>] page_fault+0x28/0x30
[6448082.962251] Code: 8b 55 08 49 89 5d 08 4c 89 2b 48 89 53 08 48 89 1a e8 f3 a4 67 00 4c 3b 6d c8 74 2b 45 85 ff 75 0a eb 0e 66 0f 1f 44 00 00 f3 90 <f6> 43 20 01 75 f8 48 8b 5d d8 4c 8b 65 e0 4c 8b 6d e8 4c 8b 75

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https://bugs.launchpad.net/bugs/1285427

Title:
  Precise with linux-lts-saucy 3.11.0-15 soft lockup

Status in “linux” package in Ubuntu:
  New

Bug description:
  I am experiencing intermittent soft lockups with kernels linux-lts-
  saucy 3.11.0-13 and linux-lts-saucy 3.11.0-15. I am currently testing
  3.11.0-17 to see if it resolves the problem, but while I do that test,
  I want to document the problem!

  Symptoms: host can be pinged, but cannot log in over ssh; local
  console shows various kernel BUG output.

  Sample output (I will paste in a couple more in subsequent comments)

  
  [2911231.663520] general protection fault: 0000 [#1] SMP
  [2911231.669313] Modules linked in: ipmi_devintf ipmi_si ipmi_msghandler gpio_ich psmouse sb_edac serio_raw edac_core joydev shpchp mei_me ioatdma mei lpc_ich acpi_pad mac_hid lp parport hid_generic usbhid hid igb isci dca i2c_algo_bit libsas ahci ptp libahci scsi_transport_sas pps_core
  [2911231.697981] CPU: 8 PID: 1441 Comm: jbd2/sdc1-8 Tainted: GF            3.11.0-15-generic #23~precise1-Ubuntu
  [2911231.709074] Hardware name: Supermicro X9DRW/X9DRW, BIOS 1.0a 11/02/2012
  [2911231.716673] task: ffff880465be5dc0 ti: ffff8804661e6000 task.ti: ffff8804661e6000
  [2911231.725241] RIP: 0010:[<ffffffff8119c316>]  [<ffffffff8119c316>] kmem_cache_alloc+0x66/0x150
  [2911231.734966] RSP: 0018:ffff8804661e7ae8  EFLAGS: 00010206
  [2911231.741119] RAX: 0000000000000000 RBX: ffff880469687a80 RCX: 00000000036e6722
  [2911231.749301] RDX: 00000000036e6721 RSI: 0000000000011200 RDI: 00000000000173c0
  [2911231.757481] RBP: ffff8804661e7b38 R08: ffff88087fc173c0 R09: 0000000000000000
  [2911231.765664] R10: 0000000000000001 R11: ffff880465122240 R12: ffff88046f803800
  [2911231.773846] R13: 616369646e79532b R14: ffffffff8114b725 R15: 0000000000011200
  [2911231.782066] FS:  0000000000000000(0000) GS:ffff88087fc00000(0000) knlGS:0000000000000000
  [2911231.791353] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  [2911231.798008] CR2: 0000000001589048 CR3: 0000000001c0d000 CR4: 00000000000407e0
  [2911231.806231] Stack:
  [2911231.808702]  ffff880464db8820 0000000000000003 ffff8804661e7d48 ffff8804661e7d50
  [2911231.817335]  ffff8804661e7b68 ffff880469687a80 0000000000011210 ffff880469687ab0
  [2911231.825926]  ffff8804661e7b88 ffff880465be5dc0 ffff8804661e7b48 ffffffff8114b725
  [2911231.834532] Call Trace:
  [2911231.837496]  [<ffffffff8114b725>] mempool_alloc_slab+0x15/0x20
  [2911231.844250]  [<ffffffff8114ba6e>] mempool_alloc+0x5e/0x160
  [2911231.850613]  [<ffffffff8134c647>] ? generic_make_request.part.61+0x77/0xb0
  [2911231.858531]  [<ffffffff811eb12b>] bio_alloc_bioset+0x10b/0x1d0
  [2911231.865278]  [<ffffffff811e511e>] _submit_bh+0x7e/0x150
  [2911231.871348]  [<ffffffff811e5200>] submit_bh+0x10/0x20
  [2911231.877233]  [<ffffffff812a2ead>] jbd2_journal_commit_transaction+0x58d/0x1580
  [2911231.885559]  [<ffffffff81089ab0>] ? add_wait_queue+0x60/0x60
  [2911231.892118]  [<ffffffff81072a5f>] ? try_to_del_timer_sync+0x4f/0x70
  [2911231.899358]  [<ffffffff812a82a8>] kjournald2+0xb8/0x240
  [2911231.905432]  [<ffffffff81089ab0>] ? add_wait_queue+0x60/0x60
  [2911231.911985]  [<ffffffff812a81f0>] ? commit_timeout+0x10/0x10
  [2911231.918539]  [<ffffffff81088fe0>] kthread+0xc0/0xd0
  [2911231.924216]  [<ffffffff81088f20>] ? flush_kthread_worker+0xb0/0xb0
  [2911231.931361]  [<ffffffff817508ac>] ret_from_fork+0x7c/0xb0
  [2911231.937624]  [<ffffffff81088f20>] ? flush_kthread_worker+0xb0/0xb0
  [2911231.944753] Code: dc 00 00 49 8b 50 08 49 83 78 10 00 4d 8b 28 0f 84 e1 00 00 00 4d 85 ed 0f 84 d8 00 00 00 49 63 44 24 20 49 8b 3c 24 48 8d 4a 01 <49> 8b 5c 05 00 4c 89 e8 65 48 0f c7 0f 0f 94 c0 84 c0 74 b7 49
  [2911231.967080] RIP  [<ffffffff8119c316>] kmem_cache_alloc+0x66/0x150
  [2911231.974138]  RSP <ffff8804661e7ae8>
  [2911231.978793] ---[ end trace 2dbd861ffe55cdd4 ]---
  [2911231.984265] ------------[ cut here ]------------
  [2911231.989768] WARNING: CPU: 8 PID: 1441 at /build/buildd/linux-lts-saucy-3.11.0/kernel/exit.c:703 do_exit+0x55/0x480()
  [2911232.001876] Modules linked in: ipmi_devintf ipmi_si ipmi_msghandler gpio_ich psmouse sb_edac serio_raw edac_core joydev shpchp mei_me ioatdma mei lpc_ich acpi_pad mac_hid lp parport hid_generic usbhid hid igb isci dca i2c_algo_bit libsas ahci ptp libahci scsi_transport_sas pps_core
  [2911232.032992] CPU: 8 PID: 1441 Comm: jbd2/sdc1-8 Tainted: GF     D      3.11.0-15-generic #23~precise1-Ubuntu
  [2911232.044220] Hardware name: Supermicro X9DRW/X9DRW, BIOS 1.0a 11/02/2012
  [2911232.051921]  00000000000002bf ffff8804661e78e8 ffffffff8173bc0e ffff88087fc10030
  [2911232.060872]  0000000000000000 ffff8804661e7928 ffffffff810653ac 000000000000000b
  [2911232.069807]  ffff880465be5dc0 000000000000000b ffff8804661e7a38 0000000000000000
  [2911232.078727] Call Trace:
  [2911232.081767]  [<ffffffff8173bc0e>] dump_stack+0x46/0x58
  [2911232.087819]  [<ffffffff810653ac>] warn_slowpath_common+0x8c/0xc0
  [2911232.094837]  [<ffffffff810653fa>] warn_slowpath_null+0x1a/0x20
  [2911232.101662]  [<ffffffff81067de5>] do_exit+0x55/0x480
  [2911232.107535]  [<ffffffff81748ae9>] oops_end+0xb9/0x100
  [2911232.113487]  [<ffffffff810173f8>] die+0x58/0x90
  [2911232.118864]  [<ffffffff817484bc>] do_general_protection+0xfc/0x190
  [2911232.126086]  [<ffffffff8114b725>] ? mempool_alloc_slab+0x15/0x20
  [2911232.133121]  [<ffffffff81747e28>] general_protection+0x28/0x30
  [2911232.139963]  [<ffffffff8114b725>] ? mempool_alloc_slab+0x15/0x20
  [2911232.147003]  [<ffffffff8119c316>] ? kmem_cache_alloc+0x66/0x150
  [2911232.153916]  [<ffffffff8134bc07>] ? drive_stat_acct+0x117/0x190
  [2911232.160846]  [<ffffffff8114b725>] mempool_alloc_slab+0x15/0x20
  [2911232.167670]  [<ffffffff8114ba6e>] mempool_alloc+0x5e/0x160
  [2911232.174113]  [<ffffffff8134c647>] ? generic_make_request.part.61+0x77/0xb0
  [2911232.182130]  [<ffffffff811eb12b>] bio_alloc_bioset+0x10b/0x1d0
  [2911232.188965]  [<ffffffff811e511e>] _submit_bh+0x7e/0x150
  [2911232.195111]  [<ffffffff811e5200>] submit_bh+0x10/0x20
  [2911232.201063]  [<ffffffff812a2ead>] jbd2_journal_commit_transaction+0x58d/0x1580
  [2911232.209465]  [<ffffffff81089ab0>] ? add_wait_queue+0x60/0x60
  [2911232.216102]  [<ffffffff81072a5f>] ? try_to_del_timer_sync+0x4f/0x70
  [2911232.223411]  [<ffffffff812a82a8>] kjournald2+0xb8/0x240
  [2911232.229549]  [<ffffffff81089ab0>] ? add_wait_queue+0x60/0x60
  [2911232.236205]  [<ffffffff812a81f0>] ? commit_timeout+0x10/0x10
  [2911232.242848]  [<ffffffff81088fe0>] kthread+0xc0/0xd0
  [2911232.248614]  [<ffffffff81088f20>] ? flush_kthread_worker+0xb0/0xb0
  [2911232.255849]  [<ffffffff817508ac>] ret_from_fork+0x7c/0xb0
  [2911232.264216]  [<ffffffff81088f20>] ? flush_kthread_worker+0xb0/0xb0
  [2911232.271434] ---[ end trace 2dbd861ffe55cdd5 ]---
  [2911239.915709] general protection fault: 0000 [#2] SMP
  [2911239.921720] Modules linked in: ipmi_devintf ipmi_si ipmi_msghandler gpio_ich psmouse sb_edac serio_raw edac_core joydev shpchp mei_me ioatdma mei lpc_ich acpi_pad mac_hid lp parport hid_generic usbhid hid igb isci dca i2c_algo_bit libsas ahci ptp libahci scsi_transport_sas pps_core
  [2911239.952548] CPU: 8 PID: 1436 Comm: jbd2/sdb1-8 Tainted: GF     D W    3.11.0-15-generic #23~precise1-Ubuntu
  [2911239.963750] Hardware name: Supermicro X9DRW/X9DRW, BIOS 1.0a 11/02/2012
  [2911239.971433] task: ffff880465be4650 ti: ffff880466750000 task.ti: ffff880466750000
  [2911239.980109] RIP: 0010:[<ffffffff8119c316>]  [<ffffffff8119c316>] kmem_cache_alloc+0x66/0x150
  [2911239.989944] RSP: 0018:ffff880466751ae8  EFLAGS: 00010206
  [2911239.996171] RAX: 0000000000000000 RBX: ffff880469687a80 RCX: 00000000036e6756
  [2911240.004457] RDX: 00000000036e6755 RSI: 0000000000011200 RDI: 00000000000173c0
  [2911240.012743] RBP: ffff880466751b38 R08: ffff88087fc173c0 R09: 0000000000000000
  [2911240.021034] R10: 0000000000000001 R11: ffff880465122240 R12: ffff88046f803800
  [2911240.029317] R13: 616369646e79532b R14: ffffffff8114b725 R15: 0000000000011200
  [2911240.037608] FS:  0000000000000000(0000) GS:ffff88087fc00000(0000) knlGS:0000000000000000
  [2911240.046965] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  [2911240.053691] CR2: 00007f51a0daa400 CR3: 0000000001c0d000 CR4: 00000000000407e0
  [2911240.061979] Stack:
  [2911240.064517]  ffff880464da8820 0000000000000003 ffff880466751d48 ffff880466751d50
  [2911240.073421]  ffff880466751b68 ffff880469687a80 0000000000011210 ffff880469687ab0
  [2911240.082312]  ffff880466751b88 ffff880465be4650 ffff880466751b48 ffffffff8114b725
  [2911240.091215] Call Trace:
  [2911240.094240]  [<ffffffff8114b725>] mempool_alloc_slab+0x15/0x20
  [2911240.101053]  [<ffffffff8114ba6e>] mempool_alloc+0x5e/0x160
  [2911240.107579]  [<ffffffff8134c647>] ? generic_make_request.part.61+0x77/0xb0
  [2911240.115564]  [<ffffffff811eb12b>] bio_alloc_bioset+0x10b/0x1d0
  [2911240.122379]  [<ffffffff811e511e>] _submit_bh+0x7e/0x150
  [2911240.128511]  [<ffffffff811e5200>] submit_bh+0x10/0x20
  [2911240.134453]  [<ffffffff812a2ead>] jbd2_journal_commit_transaction+0x58d/0x1580
  [2911240.142838]  [<ffffffff81095bb2>] ? finish_task_switch+0x52/0xf0
  [2911240.149849]  [<ffffffff81051089>] ? default_spin_lock_flags+0x9/0x10
  [2911240.157255]  [<ffffffff817477de>] ? _raw_spin_lock_irqsave+0x2e/0x40
  [2911240.164657]  [<ffffffff81072a5f>] ? try_to_del_timer_sync+0x4f/0x70
  [2911240.171958]  [<ffffffff812a82a8>] kjournald2+0xb8/0x240
  [2911240.178093]  [<ffffffff81089ab0>] ? add_wait_queue+0x60/0x60
  [2911240.184710]  [<ffffffff812a81f0>] ? commit_timeout+0x10/0x10
  [2911240.191333]  [<ffffffff81088fe0>] kthread+0xc0/0xd0
  [2911240.197081]  [<ffffffff81088f20>] ? flush_kthread_worker+0xb0/0xb0
  [2911240.204288]  [<ffffffff817508ac>] ret_from_fork+0x7c/0xb0
  [2911240.210617]  [<ffffffff81088f20>] ? flush_kthread_worker+0xb0/0xb0
  [2911240.217814] Code: dc 00 00 49 8b 50 08 49 83 78 10 00 4d 8b 28 0f 84 e1 00 00 00 4d 85 ed 0f 84 d8 00 00 00 49 63 44 24 20 49 8b 3c 24 48 8d 4a 01 <49> 8b 5c 05 00 4c 89 e8 65 48 0f c7 0f 0f 94 c0 84 c0 74 b7 49
  [2911240.244581] RIP  [<ffffffff8119c316>] kmem_cache_alloc+0x66/0x150
  [2911240.251770]  RSP <ffff880466751ae8>
  [2911240.255996] ---[ end trace 2dbd861ffe55cdd6 ]---

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