[Bug 262843] Re: [2.6.27-2.3] temporary (?!) system deadlock with nfs_wait_bit_killable and io_schedule
I see this too on my AMD64 running intrepid. When it happens I notice it because my keyboard doesn't react to any key presses anymore (using the mouse still works). After some time everything is back to normal. [14384.920039] INFO: task postgres:5413 blocked for more than 120 seconds. [14384.920054] echo 0 /proc/sys/kernel/hung_task_timeout_secs disables this message. [14384.920059] postgres D 88002800fb98 0 5413 5004 [14384.920074] 88011ccfda58 0086 88011ccfd9e8 8039184d [14384.920096] 807c4400 807c4400 807c4400 807c4400 [14384.920116] 807c4400 807c4400 807c4400 807c4400 [14384.920133] Call Trace: [14384.920157] [8039184d] ? blk_unplug+0x3d/0x70 [14384.920172] [80519767] io_schedule+0x37/0x50 [14384.920182] [803151d5] sync_buffer+0x45/0x50 [14384.920190] [80519c4a] __wait_on_bit_lock+0x5a/0x90 [14384.920197] [80315190] ? sync_buffer+0x0/0x50 [14384.920205] [80315190] ? sync_buffer+0x0/0x50 [14384.920212] [80519cf9] out_of_line_wait_on_bit_lock+0x79/0x90 [14384.920222] [80266bc0] ? wake_bit_function+0x0/0x50 [14384.920231] [803152b6] __lock_buffer+0x36/0x40 [14384.920270] [a023f079] lock_buffer+0x29/0x30 [jbd] [14384.920286] [a02408cb] journal_invalidatepage+0x8b/0xf0 [jbd] [14384.920313] [a02559f1] ext3_invalidatepage+0x41/0x50 [ext3] [14384.920323] [802b8e65] do_invalidatepage+0x25/0x30 [14384.920330] [802b906a] truncate_complete_page+0x6a/0x80 [14384.920339] [802b921e] truncate_inode_pages_range+0x16e/0x400 [14384.920362] [a02627c4] ? __ext3_journal_stop+0x34/0x60 [ext3] [14384.920372] [80300241] ? switch_names+0xc1/0xd0 [14384.920381] [802b94c5] truncate_inode_pages+0x15/0x20 [14384.920401] [a025973d] ext3_delete_inode+0x1d/0x110 [ext3] [14384.920419] [a0259720] ? ext3_delete_inode+0x0/0x110 [ext3] [14384.920429] [80303749] generic_delete_inode+0xb9/0x180 [14384.920438] [80303835] generic_drop_inode+0x25/0x30 [14384.920447] [803024e2] iput+0x62/0x70 [14384.920455] [802ff1f0] dentry_iput+0x90/0xe0 [14384.920463] [802ff304] d_kill+0x44/0x70 [14384.920471] [80301475] dput+0x95/0x190 [14384.920478] [802f750b] sys_renameat+0x20b/0x240 [14384.920489] [802cedde] ? free_pages_and_swap_cache+0x8e/0xb0 [14384.920499] [803a9358] ? __up_write+0x68/0x140 [14384.920508] [802f755b] sys_rename+0x1b/0x20 [14384.920519] [8021288a] system_call_fastpath+0x16/0x1b [14384.920525] [14384.920556] INFO: task firefox:13261 blocked for more than 120 seconds. [14384.920562] echo 0 /proc/sys/kernel/hung_task_timeout_secs disables this message. [14384.920568] firefox D 88002800e068 0 13261 1 [14384.920581] 8800df40fd58 0082 8800df40fdc8 88001000 [14384.920600] 807c4400 807c4400 807c4400 807c4400 [14384.920620] 807c4400 807c4400 807c4400 807c4400 [14384.920636] Call Trace: [14384.920646] [8039184d] ? blk_unplug+0x3d/0x70 [14384.920655] [80519767] io_schedule+0x37/0x50 [14384.920664] [802adbed] sync_page+0x3d/0x70 [14384.920671] [80519d72] __wait_on_bit+0x62/0x90 [14384.920678] [802adbb0] ? sync_page+0x0/0x70 [14384.920687] [802ade84] wait_on_page_bit+0x74/0x80 [14384.920695] [80266bc0] ? wake_bit_function+0x0/0x50 [14384.920702] [802b7fc7] ? pagevec_lookup_tag+0x27/0x40 [14384.920711] [802ae014] wait_on_page_writeback_range+0x164/0x1a0 [14384.920720] [802b6c84] ? generic_writepages+0x24/0x30 [14384.920727] [802b6cd5] ? do_writepages+0x45/0x50 [14384.920735] [802adb25] ? __filemap_fdatawrite_range+0x55/0x70 [14384.920744] [802ae07f] filemap_fdatawait+0x2f/0x40 [14384.920751] [80313ed8] do_fsync+0xc8/0xf0 [14384.920759] [80313f36] __do_fsync+0x36/0x50 [14384.920766] [80313f63] sys_fdatasync+0x13/0x20 [14384.920775] [8021288a] system_call_fastpath+0x16/0x1b [14384.920781] [14418.208035] INFO: task kjournald:2404 blocked for more than 120 seconds. [14418.208052] echo 0 /proc/sys/kernel/hung_task_timeout_secs disables this message. [14418.208057] kjournald D 88002800cad8 0 2404 2 [14418.208065] 88011a5e7ce0 0046 88011a5e7c70 8039184d [14418.208073] 807c4400 807c4400 807c4400 807c4400 [14418.208081] 807c4400 807c4400 807c4400 807c4400 [14418.208087] Call Trace: [14418.208098] [8039184d] ? blk_unplug+0x3d/0x70 [14418.208108] [80519767] io_schedule+0x37/0x50 [14418.208115] [803151d5] sync_buffer+0x45/0x50 [14418.208120]
[Bug 262843] Re: [2.6.27-2.3] temporary (?!) system deadlock with nfs_wait_bit_killable and io_schedule
** Changed in: linux (Ubuntu) Importance: Undecided = High Assignee: (unassigned) = Ubuntu Kernel Team (ubuntu-kernel-team) Status: New = Triaged -- [2.6.27-2.3] temporary (?!) system deadlock with nfs_wait_bit_killable and io_schedule https://bugs.launchpad.net/bugs/262843 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 262843] Re: [2.6.27-2.3] temporary (?!) system deadlock with nfs_wait_bit_killable and io_schedule
** Tags added: regression-2.6.27 -- [2.6.27-2.3] temporary (?!) system deadlock with nfs_wait_bit_killable and io_schedule https://bugs.launchpad.net/bugs/262843 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 262843] Re: [2.6.27-2.3] temporary (?!) system deadlock with nfs_wait_bit_killable and io_schedule
[23390.392042] INFO: task firefox:31170 blocked for more than 120 seconds. [23390.392047] echo 0 /proc/sys/kernel/hung_task_timeout_secs disables this message. [23390.392049] firefox D 000100578bba 0 31170 1 [23390.392055] 88018008fb98 0086 880203da21b8 848a2780 [23390.392059] 807c4400 807c4400 807c4400 807c4400 [23390.392062] 807c4400 807c4400 807c4400 807c4400 [23390.392064] Call Trace: [23390.392070] [80519767] io_schedule+0x37/0x50 [23390.392073] [802adbed] sync_page+0x3d/0x70 [23390.392075] [802adc2e] sync_page_killable+0xe/0x50 [23390.392077] [80519c4a] __wait_on_bit_lock+0x5a/0x90 [23390.392079] [802adc20] ? sync_page_killable+0x0/0x50 [23390.392081] [802ad779] __lock_page_killable+0x69/0x70 [23390.392084] [80266bc0] ? wake_bit_function+0x0/0x50 [23390.392086] [802ad613] ? find_get_page+0x23/0xb0 [23390.392089] [802af5c5] do_generic_file_read+0x315/0x4a0 [23390.392091] [802ad140] ? file_read_actor+0x0/0x160 [23390.392093] [802af821] generic_file_aio_read+0xd1/0x1b0 [23390.392111] [a0556371] nfs_file_read+0x101/0x140 [nfs] [23390.392114] [802eac79] do_sync_read+0xf9/0x140 [23390.392125] [a055945a] ? nfs_getattr+0x8a/0x140 [nfs] [23390.392127] [80266b80] ? autoremove_wake_function+0x0/0x40 [23390.392130] [80387ee8] ? apparmor_file_permission+0x28/0x30 [23390.392133] [80362aa6] ? security_file_permission+0x16/0x20 [23390.392135] [802eb458] vfs_read+0xc8/0x130 [23390.392137] [802eb5c5] sys_read+0x55/0x90 [23390.392141] [8021288a] system_call_fastpath+0x16/0x1b [23390.392142] [23523.536041] INFO: task firefox:31170 blocked for more than 120 seconds. [23523.536046] echo 0 /proc/sys/kernel/hung_task_timeout_secs disables this message. [23523.536049] firefox D 000100578bba 0 31170 1 [23523.536052] 88018008fb98 0086 880203da21b8 848a2780 [23523.536055] 807c4400 807c4400 807c4400 807c4400 [23523.536058] 807c4400 807c4400 807c4400 807c4400 [23523.536061] Call Trace: [23523.536067] [80519767] io_schedule+0x37/0x50 [23523.536070] [802adbed] sync_page+0x3d/0x70 [23523.536072] [802adc2e] sync_page_killable+0xe/0x50 [23523.536074] [80519c4a] __wait_on_bit_lock+0x5a/0x90 [23523.536077] [802adc20] ? sync_page_killable+0x0/0x50 [23523.536079] [802ad779] __lock_page_killable+0x69/0x70 [23523.536081] [80266bc0] ? wake_bit_function+0x0/0x50 [23523.536083] [802ad613] ? find_get_page+0x23/0xb0 [23523.536086] [802af5c5] do_generic_file_read+0x315/0x4a0 [23523.536088] [802ad140] ? file_read_actor+0x0/0x160 [23523.536090] [802af821] generic_file_aio_read+0xd1/0x1b0 [23523.536109] [a0556371] nfs_file_read+0x101/0x140 [nfs] [23523.536112] [802eac79] do_sync_read+0xf9/0x140 [23523.536122] [a055945a] ? nfs_getattr+0x8a/0x140 [nfs] [23523.536125] [80266b80] ? autoremove_wake_function+0x0/0x40 [23523.536128] [80387ee8] ? apparmor_file_permission+0x28/0x30 [23523.536131] [80362aa6] ? security_file_permission+0x16/0x20 [23523.536133] [802eb458] vfs_read+0xc8/0x130 [23523.536135] [802eb5c5] sys_read+0x55/0x90 [23523.536138] [8021288a] system_call_fastpath+0x16/0x1b [23523.536140] [23523.536142] INFO: task mairix:4474 blocked for more than 120 seconds. [23523.536143] echo 0 /proc/sys/kernel/hung_task_timeout_secs disables this message. [23523.536145] mairixD 00010057f62d 0 4474 4470 [23523.536148] 8801221f9b48 0082 880203ca0968 880203ca07c0 [23523.536151] 807c4400 807c4400 807c4400 807c4400 [23523.536154] 807c4400 807c4400 807c4400 807c4400 [23523.536156] Call Trace: [23523.536159] [80519767] io_schedule+0x37/0x50 [23523.536161] [802adbed] sync_page+0x3d/0x70 [23523.536162] [80519c4a] __wait_on_bit_lock+0x5a/0x90 [23523.536164] [802adbb0] ? sync_page+0x0/0x70 [23523.536167] [802ad7e9] __lock_page+0x69/0x70 [23523.536169] [80266bc0] ? wake_bit_function+0x0/0x50 [23523.536171] [802ad613] ? find_get_page+0x23/0xb0 [23523.536173] [802ada1a] find_lock_page+0x4a/0x80 [23523.536175] [802af119] filemap_fault+0x299/0x430 [23523.536178] [802c3544] __do_fault+0x64/0x440 [23523.536181] [80237166] ? pte_alloc_one+0x36/0x40 [23523.536183] [802c44c8] handle_mm_fault+0x1d8/0x470 [23523.536186] [8051e0cf] do_page_fault+0x34f/0x750 [23523.536189] [803a9358] ? __up_write+0x68/0x140 [23523.536191] [8051b77a]
[Bug 262843] Re: [2.6.27-2.3] temporary (?!) system deadlock with nfs_wait_bit_killable and io_schedule
To clarify -- I actually unminimized my running liferea (which was not blocked, and which does not use NFS), and that seemed to suddenly unblock all the D tasks. -- [2.6.27-2.3] temporary (?!) system deadlock with nfs_wait_bit_killable and io_schedule https://bugs.launchpad.net/bugs/262843 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
