← Back to team overview

kernel-packages team mailing list archive

[Bug 1285427] Re: Precise with linux-lts-saucy 3.11.0-15 soft lockup

 

[1134528.181180] BUG: unable to handle kernel paging request at ffff881152a62a80
[1134528.189210] IP: [<ffffffff8119c316>] kmem_cache_alloc+0x66/0x150
[1134528.196162] PGD 1fd9067 PUD 0
[1134528.199831] Oops: 0000 [#1] SMP
[1134528.203695] 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 ipmi_si ipmi_msghandler joydev hid_generic gpio_ich psmouse usbhid serio_raw hid mei_me mei lpc_ich shpchp ioatdma wmi mac_hid lp parport raid10 raid456 async_pq async_xor xor async_memcpy async_raid6_recov igb raid6_pq dca async_tx i2c_algo_bit ptp raid1 ahci libahci pps_core raid0 multipath linear
[1134528.250321] CPU: 15 PID: 31095 Comm: check_postfix_m Tainted: GF            3.11.0-15-generic #23~precise1-Ubuntu
[1134528.262048] Hardware name: Supermicro X9DRW/X9DRW, BIOS 3.0a 08/08/2013
[1134528.269670] task: ffff8810511f5dc0 ti: ffff880df1ba8000 task.ti: ffff880df1ba8000
[1134528.278286] RIP: 0010:[<ffffffff8119c316>]  [<ffffffff8119c316>] kmem_cache_alloc+0x66/0x150
[1134528.287990] RSP: 0018:ffff880df1ba9d70  EFLAGS: 00010282
[1134528.294155] RAX: 0000000000000000 RBX: ffff880a96cd5dc0 RCX: 0000000000161db0
[1134528.302383] RDX: 0000000000161daf RSI: 00000000000000d0 RDI: 00000000000173c0
[1134528.310610] RBP: ffff880df1ba9dc0 R08: ffff88107fcf73c0 R09: 0000000000000000
[1134528.318838] R10: 0000000000000000 R11: 00000000000178f8 R12: ffff88085f803800
[1134528.327063] R13: ffff881152a62a80 R14: ffffffff8108f636 R15: 00000000000000d0
[1134528.335290] FS:  00007fd85f60b700(0000) GS:ffff88107fce0000(0000) knlGS:0000000000000000
[1134528.344587] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[1134528.351236] CR2: ffff881152a62a80 CR3: 00000000067b0000 CR4: 00000000001407e0
[1134528.359464] Stack:
[1134528.361933]  ffff880df1ba9dd0 ffffffff8119c2e1 00000001003000d0 ffffffff8101ca7e
[1134528.370510]  0000000000000340 ffff880a96cd5dc0 ffff8810511f5dc0 0000000001200011
[1134528.379095]  0000000000000000 00007fd85f60b9d0 ffff880df1ba9de0 ffffffff8108f636
[1134528.387682] Call Trace:
[1134528.390646]  [<ffffffff8119c2e1>] ? kmem_cache_alloc+0x31/0x150
[1134528.397498]  [<ffffffff8101ca7e>] ? arch_dup_task_struct+0x4e/0x100
[1134528.404739]  [<ffffffff8108f636>] prepare_creds+0x26/0x1a0
[1134528.411106]  [<ffffffff8108fc26>] copy_creds+0x36/0x160
[1134528.417185]  [<ffffffff81062e03>] ? dup_task_struct+0x183/0x1e0
[1134528.424035]  [<ffffffff810636ef>] copy_process.part.24+0x13f/0xea0
[1134528.431169]  [<ffffffff812f0e16>] ? security_file_alloc+0x16/0x20
[1134528.438217]  [<ffffffff8174754e>] ? _raw_spin_lock+0xe/0x20
[1134528.444674]  [<ffffffff810644d0>] copy_process+0x80/0x90
[1134528.450840]  [<ffffffff8106464c>] do_fork+0x9c/0x220
[1134528.456622]  [<ffffffff8107548f>] ? recalc_sigpending+0x1f/0x60
[1134528.463462]  [<ffffffff81075d67>] ? __set_task_blocked+0x37/0x80
[1134528.470399]  [<ffffffff81064856>] SyS_clone+0x16/0x20
[1134528.476279]  [<ffffffff81750cb9>] stub_clone+0x69/0x90
[1134528.482253]  [<ffffffff8175095d>] ? system_call_fastpath+0x1a/0x1f
[1134528.489390] 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
[1134528.511853] RIP  [<ffffffff8119c316>] kmem_cache_alloc+0x66/0x150
[1134528.518916]  RSP <ffff880df1ba9d70>
[1134528.523038] CR2: ffff881152a62a80
[1134528.527488] ---[ end trace 3b934834cc048c6b ]---
[1134532.976870] BUG: unable to handle kernel paging request at ffff881152a62a80
[1134532.985110] IP: [<ffffffff8119adde>] __kmalloc+0x8e/0x1a0
[1134532.991519] PGD 1fd9067 PUD 0
[1134532.995364] Oops: 0000 [#2] SMP
[1134532.999413] 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 ipmi_si ipmi_msghandler joydev hid_generic gpio_ich psmouse usbhid serio_raw hid mei_me mei lpc_ich shpchp ioatdma wmi mac_hid lp parport raid10 raid456 async_pq async_xor xor async_memcpy async_raid6_recov igb raid6_pq dca async_tx i2c_algo_bit ptp raid1 ahci libahci pps_core raid0 multipath linear
[1134533.049281] CPU: 15 PID: 15840 Comm: rtbd Tainted: GF     D      3.11.0-15-generic #23~precise1-Ubuntu
[1134533.060000] Hardware name: Supermicro X9DRW/X9DRW, BIOS 3.0a 08/08/2013
[1134533.067682] task: ffff88085122ddc0 ti: ffff8802c6d24000 task.ti: ffff8802c6d24000
[1134533.076357] RIP: 0010:[<ffffffff8119adde>]  [<ffffffff8119adde>] __kmalloc+0x8e/0x1a0
[1134533.085501] RSP: 0018:ffff8802c6d257e8  EFLAGS: 00010282
[1134533.091724] RAX: 0000000000000000 RBX: 0000000000002554 RCX: 0000000000161db2
[1134533.100012] RDX: 0000000000161db1 RSI: 0000000000000000 RDI: 00000000000173c0
[1134533.108299] RBP: ffff8802c6d25838 R08: ffff88107fcf73c0 R09: ffffffff81279b9f
[1134533.116587] R10: ffff880acf49faf8 R11: 0000000000000246 R12: ffff88085f803800
[1134533.124874] R13: ffff881152a62a80 R14: 0000000000008050 R15: 0000000000000090
[1134533.133162] FS:  00007ffcbc57b740(0000) GS:ffff88107fce0000(0000) knlGS:0000000000000000
[1134533.142516] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[1134533.149227] CR2: ffff881152a62a80 CR3: 0000000851630000 CR4: 00000000001407e0
[1134533.157513] Stack:
[1134533.160043]  ffffffff81279b9f ffffffffa008c06c 0000000a34a46cfa ffffc90016cd5a20
[1134533.168922]  2230800022300000 0000000000002554 fffffffffffffff4 0000000000002554
[1134533.177810]  ffff8802c6d25a60 ffff8802dcac8800 ffff8802c6d258b8 ffffffff81279b9f
[1134533.186699] Call Trace:
[1134533.189721]  [<ffffffff81279b9f>] ? ext4_ext_find_extent+0x2ef/0x390
[1134533.197118]  [<ffffffffa008c06c>] ? igb_tx_map+0x18c/0x400 [igb]
[1134533.204121]  [<ffffffff81279b9f>] ext4_ext_find_extent+0x2ef/0x390
[1134533.211320]  [<ffffffff8127c942>] ext4_ext_map_blocks+0x72/0xa70
[1134533.218328]  [<ffffffff81151bf4>] ? __alloc_pages_nodemask+0x154/0x9a0
[1134533.225916]  [<ffffffff8128e6d0>] ? ext4_es_lookup_extent+0x30/0x1c0
[1134533.233310]  [<ffffffff81250d95>] ext4_da_map_blocks+0x315/0x3a0
[1134533.240386]  [<ffffffff811e59f3>] ? alloc_buffer_head+0x43/0x50
[1134533.247292]  [<ffffffff811e5b68>] ? alloc_page_buffers+0x68/0xc0
[1134533.254296]  [<ffffffff81250e5e>] ext4_da_get_block_prep+0x3e/0xa0
[1134533.261493]  [<ffffffff811e7e8e>] __block_write_begin+0x1ae/0x4e0
[1134533.268595]  [<ffffffff8129fe1f>] ? jbd2__journal_start.part.9+0x9f/0x1d0
[1134533.276473]  [<ffffffff81250e20>] ? ext4_da_map_blocks+0x3a0/0x3a0
[1134533.283672]  [<ffffffff8125587a>] ? ext4_da_write_begin+0xda/0x2e0
[1134533.290869]  [<ffffffff812558d5>] ext4_da_write_begin+0x135/0x2e0
[1134533.297968]  [<ffffffff8125681e>] ? ext4_da_write_end+0xbe/0x250
[1134533.304972]  [<ffffffff81148c7a>] generic_perform_write+0xca/0x210
[1134533.312170]  [<ffffffff81148e1d>] generic_file_buffered_write+0x5d/0x90
[1134533.319856]  [<ffffffff8114aa06>] __generic_file_aio_write+0x1b6/0x3b0
[1134533.327442]  [<ffffffff8114ac69>] generic_file_aio_write+0x69/0xd0
[1134533.334640]  [<ffffffff8124c25b>] ext4_file_write+0x8b/0xd0
[1134533.341203]  [<ffffffff811b32ba>] do_sync_write+0x7a/0xb0
[1134533.347531]  [<ffffffff811b40fe>] vfs_write+0xce/0x200
[1134533.353563]  [<ffffffff811b4602>] SyS_write+0x52/0xa0
[1134533.359502]  [<ffffffff8175095d>] system_call_fastpath+0x1a/0x1f
[1134533.366503] 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
[1134533.392994] RIP  [<ffffffff8119adde>] __kmalloc+0x8e/0x1a0
[1134533.399493]  RSP <ffff8802c6d257e8>
[1134533.403676] CR2: ffff881152a62a80
[1134533.407664] ---[ end trace 3b934834cc048c6c ]---
[1134641.815560] BUG: unable to handle kernel paging request at ffff881152a62a80
[1134641.823822] IP: [<ffffffff8119c316>] kmem_cache_alloc+0x66/0x150
[1134641.830921] PGD 1fd9067 PUD 0
[1134641.834792] Oops: 0000 [#3] SMP
[1134641.838858] 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 ipmi_si ipmi_msghandler joydev hid_generic gpio_ich psmouse usbhid serio_raw hid mei_me mei lpc_ich shpchp ioatdma wmi mac_hid lp parport raid10 raid456 async_pq async_xor xor async_memcpy async_raid6_recov igb raid6_pq dca async_tx i2c_algo_bit ptp raid1 ahci libahci pps_core raid0 multipath linear
[1134641.889160] CPU: 15 PID: 2733 Comm: tlsmgr Tainted: GF     D      3.11.0-15-generic #23~precise1-Ubuntu
[1134641.899982] Hardware name: Supermicro X9DRW/X9DRW, BIOS 3.0a 08/08/2013
[1134641.907673] task: ffff880851830000 ti: ffff8808502e6000 task.ti: ffff8808502e6000
[1134641.916357] RIP: 0010:[<ffffffff8119c316>]  [<ffffffff8119c316>] kmem_cache_alloc+0x66/0x150
[1134641.926194] RSP: 0018:ffff8808502e7ea8  EFLAGS: 00010282
[1134641.932425] RAX: 0000000000000000 RBX: ffff88084f1b0700 RCX: 0000000000161db2
[1134641.940709] RDX: 0000000000161db1 RSI: 00000000000080d0 RDI: 00000000000173c0
[1134641.949005] RBP: ffff8808502e7ef8 R08: ffff88107fcf73c0 R09: ffff8810501f1000
[1134641.957298] R10: 000000000000cb20 R11: 0000000000000246 R12: ffff88085f803800
[1134641.965591] R13: ffff881152a62a80 R14: ffffffff81201aff R15: 00000000000080d0
[1134641.973876] FS:  00007ffda513e700(0000) GS:ffff88107fce0000(0000) knlGS:0000000000000000
[1134641.983239] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[1134641.989955] CR2: ffff881152a62a80 CR3: 00000008511ff000 CR4: 00000000001407e0
[1134641.998249] Stack:
[1134642.000785]  ffff880851830000 ffffffff81099e10 dead000000100100 dead000000200200
[1134642.009707]  0000000000114e4e ffff88084f1b0700 0000000000000001 0000000000000000
[1134642.018625]  0000000000000001 0000000000000000 ffff8808502e7f18 ffffffff81201aff
[1134642.027543] Call Trace:
[1134642.030579]  [<ffffffff81099e10>] ? try_to_wake_up+0x210/0x210
[1134642.037397]  [<ffffffff81201aff>] locks_alloc_lock+0x1f/0x70
[1134642.044019]  [<ffffffff81203418>] SyS_flock+0x78/0x1c0
[1134642.050064]  [<ffffffff8175095d>] system_call_fastpath+0x1a/0x1f
[1134642.057070] 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
[1134642.095576] RIP  [<ffffffff8119c316>] kmem_cache_alloc+0x66/0x150
[1134642.102771]  RSP <ffff8808502e7ea8>
[1134642.106960] CR2: ffff881152a62a80
[1134642.110957] ---[ end trace 3b934834cc048c6d ]---

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
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 ]---

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1285427/+subscriptions


References