I have a ubuntu file server that is also experiencing this bug. uname -a Linux spartan 3.2.0-38-generic #61-Ubuntu SMP Tue Feb 19 12:18:21 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux
Server is running on ESXi 5.1, 8 CPU's, 10 GB memory This locks up the who server and I need to reboot to fix. traces from the syslog: Mar 6 14:59:45 spartan kernel: [373442.140153] INFO: task kworker/3:1:16763 blocked for more than 120 seconds. Mar 6 14:59:45 spartan kernel: [373442.140293] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Mar 6 14:59:45 spartan kernel: [373442.140413] kworker/3:1 D 0000000000000003 0 16763 2 0x00000000 Mar 6 14:59:45 spartan kernel: [373442.140419] ffff88009f71db90 0000000000000046 0000000000000000 ffffffff81c87360 Mar 6 14:59:45 spartan kernel: [373442.140425] ffff88009f71dfd8 ffff88009f71dfd8 ffff88009f71dfd8 00000000000137c0 Mar 6 14:59:45 spartan kernel: [373442.140430] ffff8802ab9dae00 ffff8800a8a94500 ffff88009f71dbc0 7fffffffffffffff Mar 6 14:59:45 spartan kernel: [373442.140434] Call Trace: Mar 6 14:59:45 spartan kernel: [373442.140537] [<ffffffff8165b48f>] schedule+0x3f/0x60 Mar 6 14:59:45 spartan kernel: [373442.140541] [<ffffffff8165bad5>] schedule_timeout+0x2a5/0x320 Mar 6 14:59:45 spartan kernel: [373442.140595] [<ffffffff8101bde3>] ? native_sched_clock+0x13/0x80 Mar 6 14:59:45 spartan kernel: [373442.140599] [<ffffffff8101be59>] ? sched_clock+0x9/0x10 Mar 6 14:59:45 spartan kernel: [373442.140604] [<ffffffff81091e45>] ? sched_clock_local+0x25/0x90 Mar 6 14:59:45 spartan kernel: [373442.140608] [<ffffffff8165b2cf>] wait_for_common+0xdf/0x180 Mar 6 14:59:45 spartan kernel: [373442.140653] [<ffffffff81060600>] ? try_to_wake_up+0x200/0x200 Mar 6 14:59:45 spartan kernel: [373442.140657] [<ffffffff8165b44d>] wait_for_completion+0x1d/0x20 Mar 6 14:59:45 spartan kernel: [373442.140662] [<ffffffff8108b4ef>] kthread_create_on_node+0xaf/0x130 Mar 6 14:59:45 spartan kernel: [373442.140667] [<ffffffff81086930>] ? manage_workers.isra.31+0x130/0x130 Mar 6 14:59:45 spartan kernel: [373442.140671] [<ffffffff810845b4>] ? alloc_worker+0x24/0x70 Mar 6 14:59:45 spartan kernel: [373442.140675] [<ffffffff81086686>] create_worker+0x136/0x1b0 Mar 6 14:59:45 spartan kernel: [373442.140679] [<ffffffff81086765>] maybe_create_worker+0x65/0x100 Mar 6 14:59:45 spartan kernel: [373442.140682] [<ffffffff81086848>] manage_workers.isra.31+0x48/0x130 Mar 6 14:59:45 spartan kernel: [373442.140686] [<ffffffff81086c1b>] worker_thread+0x2eb/0x370 Mar 6 14:59:45 spartan kernel: [373442.140689] [<ffffffff81086930>] ? manage_workers.isra.31+0x130/0x130 Mar 6 14:59:45 spartan kernel: [373442.140693] [<ffffffff8108b31c>] kthread+0x8c/0xa0 Mar 6 14:59:45 spartan kernel: [373442.140748] [<ffffffff81667af4>] kernel_thread_helper+0x4/0x10 Mar 6 14:59:45 spartan kernel: [373442.140752] [<ffffffff8108b290>] ? flush_kthread_worker+0xa0/0xa0 Mar 6 14:59:45 spartan kernel: [373442.140755] [<ffffffff81667af0>] ? gs_change+0x13/0x13 Mar 6 15:01:45 spartan kernel: [373562.140109] INFO: task kworker/3:1:16763 blocked for more than 120 seconds. Mar 6 15:01:45 spartan kernel: [373562.140231] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Mar 6 15:01:45 spartan kernel: [373562.140351] kworker/3:1 D 0000000000000003 0 16763 2 0x00000000 Mar 6 15:01:45 spartan kernel: [373562.140357] ffff88009f71db90 0000000000000046 0000000000000000 ffffffff81c87360 Mar 6 15:01:45 spartan kernel: [373562.140364] ffff88009f71dfd8 ffff88009f71dfd8 ffff88009f71dfd8 00000000000137c0 Mar 6 15:01:45 spartan kernel: [373562.140368] ffff8802ab9dae00 ffff8800a8a94500 ffff88009f71dbc0 7fffffffffffffff Mar 6 15:01:45 spartan kernel: [373562.140373] Call Trace: Mar 6 15:01:45 spartan kernel: [373562.140387] [<ffffffff8165b48f>] schedule+0x3f/0x60 Mar 6 15:01:45 spartan kernel: [373562.140392] [<ffffffff8165bad5>] schedule_timeout+0x2a5/0x320 Mar 6 15:01:45 spartan kernel: [373562.140399] [<ffffffff8101bde3>] ? native_sched_clock+0x13/0x80 Mar 6 15:01:45 spartan kernel: [373562.140402] [<ffffffff8101be59>] ? sched_clock+0x9/0x10 Mar 6 15:01:45 spartan kernel: [373562.140407] [<ffffffff81091e45>] ? sched_clock_local+0x25/0x90 Mar 6 15:01:45 spartan kernel: [373562.140410] [<ffffffff8165b2cf>] wait_for_common+0xdf/0x180 Mar 6 15:01:45 spartan kernel: [373562.140416] [<ffffffff81060600>] ? try_to_wake_up+0x200/0x200 Mar 6 15:01:45 spartan kernel: [373562.140420] [<ffffffff8165b44d>] wait_for_completion+0x1d/0x20 Mar 6 15:01:45 spartan kernel: [373562.140424] [<ffffffff8108b4ef>] kthread_create_on_node+0xaf/0x130 Mar 6 15:01:45 spartan kernel: [373562.140429] [<ffffffff81086930>] ? manage_workers.isra.31+0x130/0x130 Mar 6 15:01:45 spartan kernel: [373562.140434] [<ffffffff810845b4>] ? alloc_worker+0x24/0x70 Mar 6 15:01:45 spartan kernel: [373562.140438] [<ffffffff81086686>] create_worker+0x136/0x1b0 Mar 6 15:01:45 spartan kernel: [373562.140441] [<ffffffff81086765>] maybe_create_worker+0x65/0x100 Mar 6 15:01:45 spartan kernel: [373562.140445] [<ffffffff81086848>] manage_workers.isra.31+0x48/0x130 Mar 6 15:01:45 spartan kernel: [373562.140448] [<ffffffff81086c1b>] worker_thread+0x2eb/0x370 Mar 6 15:01:45 spartan kernel: [373562.140452] [<ffffffff81086930>] ? manage_workers.isra.31+0x130/0x130 Mar 6 15:01:45 spartan kernel: [373562.140455] [<ffffffff8108b31c>] kthread+0x8c/0xa0 Mar 6 15:01:45 spartan kernel: [373562.140461] [<ffffffff81667af4>] kernel_thread_helper+0x4/0x10 Mar 6 15:01:45 spartan kernel: [373562.140464] [<ffffffff8108b290>] ? flush_kthread_worker+0xa0/0xa0 Mar 6 15:01:45 spartan kernel: [373562.140468] [<ffffffff81667af0>] ? gs_change+0x13/0x13 Mar 6 15:01:45 spartan kernel: [373562.140478] INFO: task kworker/0:2:22366 blocked for more than 120 seconds. Mar 6 15:01:45 spartan kernel: [373562.140725] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Mar 6 15:01:45 spartan kernel: [373562.140843] kworker/0:2 D 0000000000000000 0 22366 2 0x00000000 Mar 6 15:01:45 spartan kernel: [373562.140848] ffff880079a97b90 0000000000000046 0000000000000400 0000000000000004 Mar 6 15:01:45 spartan kernel: [373562.140852] ffff880079a97fd8 ffff880079a97fd8 ffff880079a97fd8 00000000000137c0 Mar 6 15:01:45 spartan kernel: [373562.140857] ffff8802aa139700 ffff88000dfa0000 ffff880079a97d00 7fffffffffffffff Mar 6 15:01:45 spartan kernel: [373562.140861] Call Trace: Mar 6 15:01:45 spartan kernel: [373562.140864] [<ffffffff8165b48f>] schedule+0x3f/0x60 Mar 6 15:01:45 spartan kernel: [373562.140867] [<ffffffff8165bad5>] schedule_timeout+0x2a5/0x320 Mar 6 15:01:45 spartan kernel: [373562.140870] [<ffffffff8165b2cf>] wait_for_common+0xdf/0x180 Mar 6 15:01:45 spartan kernel: [373562.140874] [<ffffffff81060600>] ? try_to_wake_up+0x200/0x200 Mar 6 15:01:45 spartan kernel: [373562.140877] [<ffffffff8165b44d>] wait_for_completion+0x1d/0x20 Mar 6 15:01:45 spartan kernel: [373562.140880] [<ffffffff8108b4ef>] kthread_create_on_node+0xaf/0x130 Mar 6 15:01:45 spartan kernel: [373562.140884] [<ffffffff81086930>] ? manage_workers.isra.31+0x130/0x130 Mar 6 15:01:45 spartan kernel: [373562.140888] [<ffffffff810845b4>] ? alloc_worker+0x24/0x70 Mar 6 15:01:45 spartan kernel: [373562.140891] [<ffffffff81086686>] create_worker+0x136/0x1b0 Mar 6 15:01:45 spartan kernel: [373562.140895] [<ffffffff81086765>] maybe_create_worker+0x65/0x100 Mar 6 15:01:45 spartan kernel: [373562.140899] [<ffffffff81086848>] manage_workers.isra.31+0x48/0x130 Mar 6 15:01:45 spartan kernel: [373562.140902] [<ffffffff81086c1b>] worker_thread+0x2eb/0x370 Mar 6 15:01:45 spartan kernel: [373562.140906] [<ffffffff81086930>] ? manage_workers.isra.31+0x130/0x130 Mar 6 15:01:45 spartan kernel: [373562.140909] [<ffffffff8108b31c>] kthread+0x8c/0xa0 Mar 6 15:01:45 spartan kernel: [373562.140913] [<ffffffff81667af4>] kernel_thread_helper+0x4/0x10 Mar 6 15:01:45 spartan kernel: [373562.140916] [<ffffffff8108b290>] ? flush_kthread_worker+0xa0/0xa0 Mar 6 15:01:45 spartan kernel: [373562.140919] [<ffffffff81667af0>] ? gs_change+0x13/0x13 Mar 6 15:01:45 spartan kernel: [373562.140923] INFO: task kworker/5:2:23509 blocked for more than 120 seconds. Mar 6 15:01:45 spartan kernel: [373562.141029] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Mar 6 15:01:45 spartan kernel: [373562.141146] kworker/5:2 D 0000000000000005 0 23509 2 0x00000000 Mar 6 15:01:45 spartan kernel: [373562.141150] ffff88005d4fbb90 0000000000000046 0000000000000400 ffffffff81c87360 Mar 6 15:01:45 spartan kernel: [373562.141155] ffff88005d4fbfd8 ffff88005d4fbfd8 ffff88005d4fbfd8 00000000000137c0 Mar 6 15:01:45 spartan kernel: [373562.141159] ffff8802aa689700 ffff8802abb21700 ffff88005d4fbbc0 7fffffffffffffff Mar 6 15:01:45 spartan kernel: [373562.141163] Call Trace: Mar 6 15:01:45 spartan kernel: [373562.141166] [<ffffffff8165b48f>] schedule+0x3f/0x60 Mar 6 15:01:45 spartan kernel: [373562.141169] [<ffffffff8165bad5>] schedule_timeout+0x2a5/0x320 Mar 6 15:01:45 spartan kernel: [373562.141172] [<ffffffff8165b2cf>] wait_for_common+0xdf/0x180 Mar 6 15:01:45 spartan kernel: [373562.141176] [<ffffffff81060600>] ? try_to_wake_up+0x200/0x200 Mar 6 15:01:45 spartan kernel: [373562.141179] [<ffffffff8165b44d>] wait_for_completion+0x1d/0x20 Mar 6 15:01:45 spartan kernel: [373562.141183] [<ffffffff8108b4ef>] kthread_create_on_node+0xaf/0x130 Mar 6 15:01:45 spartan kernel: [373562.141187] [<ffffffff81086930>] ? manage_workers.isra.31+0x130/0x130 Mar 6 15:01:45 spartan kernel: [373562.141190] [<ffffffff810845b4>] ? alloc_worker+0x24/0x70 Mar 6 15:01:45 spartan kernel: [373562.141194] [<ffffffff81086686>] create_worker+0x136/0x1b0 Mar 6 15:01:45 spartan kernel: [373562.141197] [<ffffffff81086765>] maybe_create_worker+0x65/0x100 Mar 6 15:01:45 spartan kernel: [373562.141201] [<ffffffff81086848>] manage_workers.isra.31+0x48/0x130 Mar 6 15:01:45 spartan kernel: [373562.141205] [<ffffffff81086c1b>] worker_thread+0x2eb/0x370 Mar 6 15:01:45 spartan kernel: [373562.141208] [<ffffffff81086930>] ? manage_workers.isra.31+0x130/0x130 Mar 6 15:01:45 spartan kernel: [373562.141211] [<ffffffff8108b31c>] kthread+0x8c/0xa0 Mar 6 15:01:45 spartan kernel: [373562.141215] [<ffffffff81667af4>] kernel_thread_helper+0x4/0x10 Mar 6 15:01:45 spartan kernel: [373562.141218] [<ffffffff8108b290>] ? flush_kthread_worker+0xa0/0xa0 Mar 6 15:01:45 spartan kernel: [373562.141222] [<ffffffff81667af0>] ? gs_change+0x13/0x13 Mar 6 15:01:45 spartan kernel: [373562.141228] INFO: task kworker/7:0:23634 blocked for more than 120 seconds. Mar 6 15:01:45 spartan kernel: [373562.141333] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Mar 6 15:01:45 spartan kernel: [373562.141450] kworker/7:0 D 0000000000000007 0 23634 2 0x00000000 Mar 6 15:01:45 spartan kernel: [373562.141454] ffff88005d9ebb90 0000000000000046 0000000000000400 ffffffff81c87360 Mar 6 15:01:45 spartan kernel: [373562.141458] ffff88005d9ebfd8 ffff88005d9ebfd8 ffff88005d9ebfd8 00000000000137c0 Mar 6 15:01:45 spartan kernel: [373562.141463] ffff880002bf4500 ffff880075d2e000 ffff88005d9ebbc0 7fffffffffffffff Mar 6 15:01:45 spartan kernel: [373562.141467] Call Trace: Mar 6 15:01:45 spartan kernel: [373562.141470] [<ffffffff8165b48f>] schedule+0x3f/0x60 Mar 6 15:01:45 spartan kernel: [373562.141473] [<ffffffff8165bad5>] schedule_timeout+0x2a5/0x320 Mar 6 15:01:45 spartan kernel: [373562.141480] [<ffffffff8142cf50>] ? scsi_dma_map+0x90/0xc0 Mar 6 15:01:45 spartan kernel: [373562.141483] [<ffffffff8165b2cf>] wait_for_common+0xdf/0x180 Mar 6 15:01:45 spartan kernel: [373562.141487] [<ffffffff81060600>] ? try_to_wake_up+0x200/0x200 Mar 6 15:01:45 spartan kernel: [373562.141490] [<ffffffff8165b44d>] wait_for_completion+0x1d/0x20 Mar 6 15:01:45 spartan kernel: [373562.141493] [<ffffffff8108b4ef>] kthread_create_on_node+0xaf/0x130 Mar 6 15:01:45 spartan kernel: [373562.141497] [<ffffffff81086930>] ? manage_workers.isra.31+0x130/0x130 Mar 6 15:01:45 spartan kernel: [373562.141501] [<ffffffff810845b4>] ? alloc_worker+0x24/0x70 Mar 6 15:01:45 spartan kernel: [373562.141504] [<ffffffff81086686>] create_worker+0x136/0x1b0 Mar 6 15:01:45 spartan kernel: [373562.141508] [<ffffffff81086765>] maybe_create_worker+0x65/0x100 Mar 6 15:01:45 spartan kernel: [373562.141512] [<ffffffff81086848>] manage_workers.isra.31+0x48/0x130 Mar 6 15:01:45 spartan kernel: [373562.141515] [<ffffffff81086c1b>] worker_thread+0x2eb/0x370 Mar 6 15:01:45 spartan kernel: [373562.141519] [<ffffffff81086930>] ? manage_workers.isra.31+0x130/0x130 Mar 6 15:01:45 spartan kernel: [373562.141522] [<ffffffff8108b31c>] kthread+0x8c/0xa0 Mar 6 15:01:45 spartan kernel: [373562.141525] [<ffffffff81667af4>] kernel_thread_helper+0x4/0x10 Mar 6 15:01:45 spartan kernel: [373562.141529] [<ffffffff8108b290>] ? flush_kthread_worker+0xa0/0xa0 Mar 6 15:01:45 spartan kernel: [373562.141532] [<ffffffff81667af0>] ? gs_change+0x13/0x13 Mar 6 15:03:45 spartan kernel: [373682.140109] INFO: task kworker/3:1:16763 blocked for more than 120 seconds. Mar 6 15:03:45 spartan kernel: [373682.140231] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Mar 6 15:03:45 spartan kernel: [373682.140381] kworker/3:1 D 0000000000000003 0 16763 2 0x00000000 Mar 6 15:03:45 spartan kernel: [373682.140388] ffff88009f71db90 0000000000000046 0000000000000000 ffffffff81c87360 Mar 6 15:03:45 spartan kernel: [373682.140394] ffff88009f71dfd8 ffff88009f71dfd8 ffff88009f71dfd8 00000000000137c0 Mar 6 15:03:45 spartan kernel: [373682.140399] ffff8802ab9dae00 ffff8800a8a94500 ffff88009f71dbc0 7fffffffffffffff Mar 6 15:03:45 spartan kernel: [373682.140403] Call Trace: Mar 6 15:03:45 spartan kernel: [373682.140418] [<ffffffff8165b48f>] schedule+0x3f/0x60 Mar 6 15:03:45 spartan kernel: [373682.140422] [<ffffffff8165bad5>] schedule_timeout+0x2a5/0x320 Mar 6 15:03:45 spartan kernel: [373682.140429] [<ffffffff8101bde3>] ? native_sched_clock+0x13/0x80 Mar 6 15:03:45 spartan kernel: [373682.140432] [<ffffffff8101be59>] ? sched_clock+0x9/0x10 Mar 6 15:03:45 spartan kernel: [373682.140437] [<ffffffff81091e45>] ? sched_clock_local+0x25/0x90 Mar 6 15:03:45 spartan kernel: [373682.140441] [<ffffffff8165b2cf>] wait_for_common+0xdf/0x180 Mar 6 15:03:45 spartan kernel: [373682.140447] [<ffffffff81060600>] ? try_to_wake_up+0x200/0x200 Mar 6 15:03:45 spartan kernel: [373682.140450] [<ffffffff8165b44d>] wait_for_completion+0x1d/0x20 Mar 6 15:03:45 spartan kernel: [373682.140455] [<ffffffff8108b4ef>] kthread_create_on_node+0xaf/0x130 Mar 6 15:03:45 spartan kernel: [373682.140460] [<ffffffff81086930>] ? manage_workers.isra.31+0x130/0x130 Mar 6 15:03:45 spartan kernel: [373682.140465] [<ffffffff810845b4>] ? alloc_worker+0x24/0x70 Mar 6 15:03:45 spartan kernel: [373682.140469] [<ffffffff81086686>] create_worker+0x136/0x1b0 Mar 6 15:03:45 spartan kernel: [373682.140472] [<ffffffff81086765>] maybe_create_worker+0x65/0x100 Mar 6 15:03:45 spartan kernel: [373682.140476] [<ffffffff81086848>] manage_workers.isra.31+0x48/0x130 Mar 6 15:03:45 spartan kernel: [373682.140479] [<ffffffff81086c1b>] worker_thread+0x2eb/0x370 Mar 6 15:03:45 spartan kernel: [373682.140483] [<ffffffff81086930>] ? manage_workers.isra.31+0x130/0x130 Mar 6 15:03:45 spartan kernel: [373682.140486] [<ffffffff8108b31c>] kthread+0x8c/0xa0 Mar 6 15:03:45 spartan kernel: [373682.140492] [<ffffffff81667af4>] kernel_thread_helper+0x4/0x10 Mar 6 15:03:45 spartan kernel: [373682.140495] [<ffffffff8108b290>] ? flush_kthread_worker+0xa0/0xa0 Mar 6 15:03:45 spartan kernel: [373682.140499] [<ffffffff81667af0>] ? gs_change+0x13/0x13 Mar 6 15:03:45 spartan kernel: [373682.140509] INFO: task kworker/0:2:22366 blocked for more than 120 seconds. Mar 6 15:03:45 spartan kernel: [373682.140638] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Mar 6 15:03:45 spartan kernel: [373682.140802] kworker/0:2 D 0000000000000000 0 22366 2 0x00000000 Mar 6 15:03:45 spartan kernel: [373682.140810] ffff880079a97b90 0000000000000046 0000000000000400 0000000000000004 Mar 6 15:03:45 spartan kernel: [373682.140815] ffff880079a97fd8 ffff880079a97fd8 ffff880079a97fd8 00000000000137c0 Mar 6 15:03:45 spartan kernel: [373682.140819] ffff8802aa139700 ffff88000dfa0000 ffff880079a97d00 7fffffffffffffff Mar 6 15:03:45 spartan kernel: [373682.140823] Call Trace: Mar 6 15:03:45 spartan kernel: [373682.140827] [<ffffffff8165b48f>] schedule+0x3f/0x60 Mar 6 15:03:45 spartan kernel: [373682.140830] [<ffffffff8165bad5>] schedule_timeout+0x2a5/0x320 Mar 6 15:03:45 spartan kernel: [373682.140833] [<ffffffff8165b2cf>] wait_for_common+0xdf/0x180 Mar 6 15:03:45 spartan kernel: [373682.140837] [<ffffffff81060600>] ? try_to_wake_up+0x200/0x200 Mar 6 15:03:45 spartan kernel: [373682.140840] [<ffffffff8165b44d>] wait_for_completion+0x1d/0x20 Mar 6 15:03:45 spartan kernel: [373682.140843] [<ffffffff8108b4ef>] kthread_create_on_node+0xaf/0x130 Mar 6 15:03:45 spartan kernel: [373682.140847] [<ffffffff81086930>] ? manage_workers.isra.31+0x130/0x130 Mar 6 15:03:45 spartan kernel: [373682.140851] [<ffffffff810845b4>] ? alloc_worker+0x24/0x70 Mar 6 15:03:45 spartan kernel: [373682.140854] [<ffffffff81086686>] create_worker+0x136/0x1b0 Mar 6 15:03:45 spartan kernel: [373682.140858] [<ffffffff81086765>] maybe_create_worker+0x65/0x100 Mar 6 15:03:45 spartan kernel: [373682.140861] [<ffffffff81086848>] manage_workers.isra.31+0x48/0x130 Mar 6 15:03:45 spartan kernel: [373682.140865] [<ffffffff81086c1b>] worker_thread+0x2eb/0x370 Mar 6 15:03:45 spartan kernel: [373682.140869] [<ffffffff81086930>] ? manage_workers.isra.31+0x130/0x130 Mar 6 15:03:45 spartan kernel: [373682.140872] [<ffffffff8108b31c>] kthread+0x8c/0xa0 Mar 6 15:03:45 spartan kernel: [373682.140875] [<ffffffff81667af4>] kernel_thread_helper+0x4/0x10 Mar 6 15:03:45 spartan kernel: [373682.140879] [<ffffffff8108b290>] ? flush_kthread_worker+0xa0/0xa0 Mar 6 15:03:45 spartan kernel: [373682.140882] [<ffffffff81667af0>] ? gs_change+0x13/0x13 Mar 6 15:03:45 spartan kernel: [373682.140886] INFO: task kworker/5:2:23509 blocked for more than 120 seconds. Mar 6 15:03:45 spartan kernel: [373682.141014] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Mar 6 15:03:45 spartan kernel: [373682.141178] kworker/5:2 D 0000000000000005 0 23509 2 0x00000000 Mar 6 15:03:45 spartan kernel: [373682.141183] ffff88005d4fbb90 0000000000000046 0000000000000400 ffffffff81c87360 Mar 6 15:03:45 spartan kernel: [373682.141187] ffff88005d4fbfd8 ffff88005d4fbfd8 ffff88005d4fbfd8 00000000000137c0 Mar 6 15:03:45 spartan kernel: [373682.141191] ffff8802aa689700 ffff8802abb21700 ffff88005d4fbbc0 7fffffffffffffff Mar 6 15:03:45 spartan kernel: [373682.141195] Call Trace: Mar 6 15:03:45 spartan kernel: [373682.141198] [<ffffffff8165b48f>] schedule+0x3f/0x60 Mar 6 15:03:45 spartan kernel: [373682.141201] [<ffffffff8165bad5>] schedule_timeout+0x2a5/0x320 Mar 6 15:03:45 spartan kernel: [373682.141205] [<ffffffff8165b2cf>] wait_for_common+0xdf/0x180 Mar 6 15:03:45 spartan kernel: [373682.141208] [<ffffffff81060600>] ? try_to_wake_up+0x200/0x200 Mar 6 15:03:45 spartan kernel: [373682.141211] [<ffffffff8165b44d>] wait_for_completion+0x1d/0x20 Mar 6 15:03:45 spartan kernel: [373682.141215] [<ffffffff8108b4ef>] kthread_create_on_node+0xaf/0x130 Mar 6 15:03:45 spartan kernel: [373682.141218] [<ffffffff81086930>] ? manage_workers.isra.31+0x130/0x130 Mar 6 15:03:45 spartan kernel: [373682.141222] [<ffffffff810845b4>] ? alloc_worker+0x24/0x70 Mar 6 15:03:45 spartan kernel: [373682.141226] [<ffffffff81086686>] create_worker+0x136/0x1b0 Mar 6 15:03:45 spartan kernel: [373682.141229] [<ffffffff81086765>] maybe_create_worker+0x65/0x100 Mar 6 15:03:45 spartan kernel: [373682.141233] [<ffffffff81086848>] manage_workers.isra.31+0x48/0x130 Mar 6 15:03:45 spartan kernel: [373682.141236] [<ffffffff81086c1b>] worker_thread+0x2eb/0x370 Mar 6 15:03:45 spartan kernel: [373682.141240] [<ffffffff81086930>] ? manage_workers.isra.31+0x130/0x130 Mar 6 15:03:45 spartan kernel: [373682.141243] [<ffffffff8108b31c>] kthread+0x8c/0xa0 Mar 6 15:03:45 spartan kernel: [373682.141247] [<ffffffff81667af4>] kernel_thread_helper+0x4/0x10 Mar 6 15:03:45 spartan kernel: [373682.141250] [<ffffffff8108b290>] ? flush_kthread_worker+0xa0/0xa0 Mar 6 15:03:45 spartan kernel: [373682.141254] [<ffffffff81667af0>] ? gs_change+0x13/0x13 Mar 6 15:03:45 spartan kernel: [373682.141258] INFO: task kworker/7:0:23634 blocked for more than 120 seconds. Mar 6 15:03:45 spartan kernel: [373682.141386] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Mar 6 15:03:45 spartan kernel: [373682.141548] kworker/7:0 D 0000000000000007 0 23634 2 0x00000000 Mar 6 15:03:45 spartan kernel: [373682.141552] ffff88005d9ebb90 0000000000000046 0000000000000400 ffffffff81c87360 Mar 6 15:03:45 spartan kernel: [373682.141557] ffff88005d9ebfd8 ffff88005d9ebfd8 ffff88005d9ebfd8 00000000000137c0 Mar 6 15:03:45 spartan kernel: [373682.141561] ffff880002bf4500 ffff880075d2e000 ffff88005d9ebbc0 7fffffffffffffff Mar 6 15:03:45 spartan kernel: [373682.141564] Call Trace: Mar 6 15:03:45 spartan kernel: [373682.141568] [<ffffffff8165b48f>] schedule+0x3f/0x60 Mar 6 15:03:45 spartan kernel: [373682.141571] [<ffffffff8165bad5>] schedule_timeout+0x2a5/0x320 Mar 6 15:03:45 spartan kernel: [373682.141578] [<ffffffff8142cf50>] ? scsi_dma_map+0x90/0xc0 Mar 6 15:03:45 spartan kernel: [373682.141581] [<ffffffff8165b2cf>] wait_for_common+0xdf/0x180 Mar 6 15:03:45 spartan kernel: [373682.141585] [<ffffffff81060600>] ? try_to_wake_up+0x200/0x200 Mar 6 15:03:45 spartan kernel: [373682.141588] [<ffffffff8165b44d>] wait_for_completion+0x1d/0x20 Mar 6 15:03:45 spartan kernel: [373682.141592] [<ffffffff8108b4ef>] kthread_create_on_node+0xaf/0x130 Mar 6 15:03:45 spartan kernel: [373682.141595] [<ffffffff81086930>] ? manage_workers.isra.31+0x130/0x130 Mar 6 15:03:45 spartan kernel: [373682.141599] [<ffffffff810845b4>] ? alloc_worker+0x24/0x70 Mar 6 15:03:45 spartan kernel: [373682.141603] [<ffffffff81086686>] create_worker+0x136/0x1b0 Mar 6 15:03:45 spartan kernel: [373682.141606] [<ffffffff81086765>] maybe_create_worker+0x65/0x100 Mar 6 15:03:45 spartan kernel: [373682.141610] [<ffffffff81086848>] manage_workers.isra.31+0x48/0x130 Mar 6 15:03:45 spartan kernel: [373682.141614] [<ffffffff81086c1b>] worker_thread+0x2eb/0x370 Mar 6 15:03:45 spartan kernel: [373682.141617] [<ffffffff81086930>] ? manage_workers.isra.31+0x130/0x130 Mar 6 15:03:45 spartan kernel: [373682.141621] [<ffffffff8108b31c>] kthread+0x8c/0xa0 Mar 6 15:03:45 spartan kernel: [373682.141624] [<ffffffff81667af4>] kernel_thread_helper+0x4/0x10 Mar 6 15:03:45 spartan kernel: [373682.141627] [<ffffffff8108b290>] ? flush_kthread_worker+0xa0/0xa0 Mar 6 15:03:45 spartan kernel: [373682.141631] [<ffffffff81667af0>] ? gs_change+0x13/0x13 Mar 6 15:05:45 spartan kernel: [373802.140111] INFO: task kworker/3:1:16763 blocked for more than 120 seconds. Mar 6 15:05:45 spartan kernel: [373802.140259] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Mar 6 15:05:45 spartan kernel: [373802.140423] kworker/3:1 D 0000000000000003 0 16763 2 0x00000000 Mar 6 15:05:45 spartan kernel: [373802.140429] ffff88009f71db90 0000000000000046 0000000000000000 ffffffff81c87360 Mar 6 15:05:45 spartan kernel: [373802.140435] ffff88009f71dfd8 ffff88009f71dfd8 ffff88009f71dfd8 00000000000137c0 Mar 6 15:05:45 spartan kernel: [373802.140440] ffff8802ab9dae00 ffff8800a8a94500 ffff88009f71dbc0 7fffffffffffffff Mar 6 15:05:45 spartan kernel: [373802.140444] Call Trace: Mar 6 15:05:45 spartan kernel: [373802.140460] [<ffffffff8165b48f>] schedule+0x3f/0x60 Mar 6 15:05:45 spartan kernel: [373802.140464] [<ffffffff8165bad5>] schedule_timeout+0x2a5/0x320 Mar 6 15:05:45 spartan kernel: [373802.140472] [<ffffffff8101bde3>] ? native_sched_clock+0x13/0x80 Mar 6 15:05:45 spartan kernel: [373802.140475] [<ffffffff8101be59>] ? sched_clock+0x9/0x10 Mar 6 15:05:45 spartan kernel: [373802.140479] [<ffffffff81091e45>] ? sched_clock_local+0x25/0x90 Mar 6 15:05:45 spartan kernel: [373802.140483] [<ffffffff8165b2cf>] wait_for_common+0xdf/0x180 Mar 6 15:05:45 spartan kernel: [373802.140489] [<ffffffff81060600>] ? try_to_wake_up+0x200/0x200 Mar 6 15:05:45 spartan kernel: [373802.140492] [<ffffffff8165b44d>] wait_for_completion+0x1d/0x20 Mar 6 15:05:45 spartan kernel: [373802.140496] [<ffffffff8108b4ef>] kthread_create_on_node+0xaf/0x130 Mar 6 15:05:45 spartan kernel: [373802.140501] [<ffffffff81086930>] ? manage_workers.isra.31+0x130/0x130 Mar 6 15:05:45 spartan kernel: [373802.140506] [<ffffffff810845b4>] ? alloc_worker+0x24/0x70 Mar 6 15:05:45 spartan kernel: [373802.140510] [<ffffffff81086686>] create_worker+0x136/0x1b0 Mar 6 15:05:45 spartan kernel: [373802.140513] [<ffffffff81086765>] maybe_create_worker+0x65/0x100 Mar 6 15:05:45 spartan kernel: [373802.140517] [<ffffffff81086848>] manage_workers.isra.31+0x48/0x130 Mar 6 15:05:45 spartan kernel: [373802.140520] [<ffffffff81086c1b>] worker_thread+0x2eb/0x370 Mar 6 15:05:45 spartan kernel: [373802.140524] [<ffffffff81086930>] ? manage_workers.isra.31+0x130/0x130 Mar 6 15:05:45 spartan kernel: [373802.140527] [<ffffffff8108b31c>] kthread+0x8c/0xa0 Mar 6 15:05:45 spartan kernel: [373802.140533] [<ffffffff81667af4>] kernel_thread_helper+0x4/0x10 Mar 6 15:05:45 spartan kernel: [373802.140536] [<ffffffff8108b290>] ? flush_kthread_worker+0xa0/0xa0 Mar 6 15:05:45 spartan kernel: [373802.140540] [<ffffffff81667af0>] ? gs_change+0x13/0x13 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/887793 Title: Kworker constantly taking about 100% CPU To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/887793/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
