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 ffff88002800fb98 0 5413 5004 [14384.920074] ffff88011ccfda58 0000000000000086 ffff88011ccfd9e8 ffffffff8039184d [14384.920096] ffffffff807c4400 ffffffff807c4400 ffffffff807c4400 ffffffff807c4400 [14384.920116] ffffffff807c4400 ffffffff807c4400 ffffffff807c4400 ffffffff807c4400 [14384.920133] Call Trace: [14384.920157] [<ffffffff8039184d>] ? blk_unplug+0x3d/0x70 [14384.920172] [<ffffffff80519767>] io_schedule+0x37/0x50 [14384.920182] [<ffffffff803151d5>] sync_buffer+0x45/0x50 [14384.920190] [<ffffffff80519c4a>] __wait_on_bit_lock+0x5a/0x90 [14384.920197] [<ffffffff80315190>] ? sync_buffer+0x0/0x50 [14384.920205] [<ffffffff80315190>] ? sync_buffer+0x0/0x50 [14384.920212] [<ffffffff80519cf9>] out_of_line_wait_on_bit_lock+0x79/0x90 [14384.920222] [<ffffffff80266bc0>] ? wake_bit_function+0x0/0x50 [14384.920231] [<ffffffff803152b6>] __lock_buffer+0x36/0x40 [14384.920270] [<ffffffffa023f079>] lock_buffer+0x29/0x30 [jbd] [14384.920286] [<ffffffffa02408cb>] journal_invalidatepage+0x8b/0xf0 [jbd] [14384.920313] [<ffffffffa02559f1>] ext3_invalidatepage+0x41/0x50 [ext3] [14384.920323] [<ffffffff802b8e65>] do_invalidatepage+0x25/0x30 [14384.920330] [<ffffffff802b906a>] truncate_complete_page+0x6a/0x80 [14384.920339] [<ffffffff802b921e>] truncate_inode_pages_range+0x16e/0x400 [14384.920362] [<ffffffffa02627c4>] ? __ext3_journal_stop+0x34/0x60 [ext3] [14384.920372] [<ffffffff80300241>] ? switch_names+0xc1/0xd0 [14384.920381] [<ffffffff802b94c5>] truncate_inode_pages+0x15/0x20 [14384.920401] [<ffffffffa025973d>] ext3_delete_inode+0x1d/0x110 [ext3] [14384.920419] [<ffffffffa0259720>] ? ext3_delete_inode+0x0/0x110 [ext3] [14384.920429] [<ffffffff80303749>] generic_delete_inode+0xb9/0x180 [14384.920438] [<ffffffff80303835>] generic_drop_inode+0x25/0x30 [14384.920447] [<ffffffff803024e2>] iput+0x62/0x70 [14384.920455] [<ffffffff802ff1f0>] dentry_iput+0x90/0xe0 [14384.920463] [<ffffffff802ff304>] d_kill+0x44/0x70 [14384.920471] [<ffffffff80301475>] dput+0x95/0x190 [14384.920478] [<ffffffff802f750b>] sys_renameat+0x20b/0x240 [14384.920489] [<ffffffff802cedde>] ? free_pages_and_swap_cache+0x8e/0xb0 [14384.920499] [<ffffffff803a9358>] ? __up_write+0x68/0x140 [14384.920508] [<ffffffff802f755b>] sys_rename+0x1b/0x20 [14384.920519] [<ffffffff8021288a>] 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 ffff88002800e068 0 13261 1 [14384.920581] ffff8800df40fd58 0000000000000082 ffff8800df40fdc8 ffff880000001000 [14384.920600] ffffffff807c4400 ffffffff807c4400 ffffffff807c4400 ffffffff807c4400 [14384.920620] ffffffff807c4400 ffffffff807c4400 ffffffff807c4400 ffffffff807c4400 [14384.920636] Call Trace: [14384.920646] [<ffffffff8039184d>] ? blk_unplug+0x3d/0x70 [14384.920655] [<ffffffff80519767>] io_schedule+0x37/0x50 [14384.920664] [<ffffffff802adbed>] sync_page+0x3d/0x70 [14384.920671] [<ffffffff80519d72>] __wait_on_bit+0x62/0x90 [14384.920678] [<ffffffff802adbb0>] ? sync_page+0x0/0x70 [14384.920687] [<ffffffff802ade84>] wait_on_page_bit+0x74/0x80 [14384.920695] [<ffffffff80266bc0>] ? wake_bit_function+0x0/0x50 [14384.920702] [<ffffffff802b7fc7>] ? pagevec_lookup_tag+0x27/0x40 [14384.920711] [<ffffffff802ae014>] wait_on_page_writeback_range+0x164/0x1a0 [14384.920720] [<ffffffff802b6c84>] ? generic_writepages+0x24/0x30 [14384.920727] [<ffffffff802b6cd5>] ? do_writepages+0x45/0x50 [14384.920735] [<ffffffff802adb25>] ? __filemap_fdatawrite_range+0x55/0x70 [14384.920744] [<ffffffff802ae07f>] filemap_fdatawait+0x2f/0x40 [14384.920751] [<ffffffff80313ed8>] do_fsync+0xc8/0xf0 [14384.920759] [<ffffffff80313f36>] __do_fsync+0x36/0x50 [14384.920766] [<ffffffff80313f63>] sys_fdatasync+0x13/0x20 [14384.920775] [<ffffffff8021288a>] 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 ffff88002800cad8 0 2404 2 [14418.208065] ffff88011a5e7ce0 0000000000000046 ffff88011a5e7c70 ffffffff8039184d [14418.208073] ffffffff807c4400 ffffffff807c4400 ffffffff807c4400 ffffffff807c4400 [14418.208081] ffffffff807c4400 ffffffff807c4400 ffffffff807c4400 ffffffff807c4400 [14418.208087] Call Trace: [14418.208098] [<ffffffff8039184d>] ? blk_unplug+0x3d/0x70 [14418.208108] [<ffffffff80519767>] io_schedule+0x37/0x50 [14418.208115] [<ffffffff803151d5>] sync_buffer+0x45/0x50 [14418.208120] [<ffffffff80519d72>] __wait_on_bit+0x62/0x90 [14418.208126] [<ffffffff80315190>] ? sync_buffer+0x0/0x50 [14418.208131] [<ffffffff80315190>] ? sync_buffer+0x0/0x50 [14418.208135] [<ffffffff80519e19>] out_of_line_wait_on_bit+0x79/0x90 [14418.208142] [<ffffffff80266bc0>] ? wake_bit_function+0x0/0x50 [14418.208148] [<ffffffff803155b6>] __wait_on_buffer+0x26/0x30 [14418.208181] [<ffffffffa0242188>] journal_commit_transaction+0x728/0xd00 [jbd] [14418.208189] [<ffffffff8025a42b>] ? lock_timer_base+0x3b/0x70 [14418.208194] [<ffffffff8025a4bf>] ? try_to_del_timer_sync+0x5f/0x70 [14418.208207] [<ffffffffa0245d69>] kjournald+0xe9/0x250 [jbd] [14418.208213] [<ffffffff80266b80>] ? autoremove_wake_function+0x0/0x40 [14418.208225] [<ffffffffa0245c80>] ? kjournald+0x0/0x250 [jbd] [14418.208231] [<ffffffff8026674e>] kthread+0x4e/0x90 [14418.208237] [<ffffffff80213cc9>] child_rip+0xa/0x11 [14418.208242] [<ffffffff80266700>] ? kthread+0x0/0x90 [14418.208246] [<ffffffff80213cbf>] ? child_rip+0x0/0x11 [14418.208249] [14418.208254] INFO: task kjournald:4186 blocked for more than 120 seconds. [14418.208260] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [14418.208267] kjournald D ffff880028012af0 0 4186 2 [14418.208280] ffff88011c531ce0 0000000000000046 ffff88011c531c70 ffffffff8039184d [14418.208299] ffffffff807c4400 ffffffff807c4400 ffffffff807c4400 ffffffff807c4400 [14418.208317] ffffffff807c4400 ffffffff807c4400 ffffffff807c4400 ffffffff807c4400 [14418.208333] Call Trace: [14418.208340] [<ffffffff8039184d>] ? blk_unplug+0x3d/0x70 [14418.208348] [<ffffffff80519767>] io_schedule+0x37/0x50 [14418.208355] [<ffffffff803151d5>] sync_buffer+0x45/0x50 [14418.208362] [<ffffffff80519d72>] __wait_on_bit+0x62/0x90 [14418.208369] [<ffffffff80315190>] ? sync_buffer+0x0/0x50 [14418.208376] [<ffffffff80315190>] ? sync_buffer+0x0/0x50 [14418.208383] [<ffffffff80519e19>] out_of_line_wait_on_bit+0x79/0x90 [14418.208391] [<ffffffff80266bc0>] ? wake_bit_function+0x0/0x50 [14418.208398] [<ffffffff803155b6>] __wait_on_buffer+0x26/0x30 [14418.208413] [<ffffffffa0242188>] journal_commit_transaction+0x728/0xd00 [jbd] [14418.208421] [<ffffffff8025a42b>] ? lock_timer_base+0x3b/0x70 [14418.208428] [<ffffffff8025a4bf>] ? try_to_del_timer_sync+0x5f/0x70 [14418.208442] [<ffffffffa0245d69>] kjournald+0xe9/0x250 [jbd] [14418.208450] [<ffffffff80266b80>] ? autoremove_wake_function+0x0/0x40 [14418.208464] [<ffffffffa0245c80>] ? kjournald+0x0/0x250 [jbd] [14418.208471] [<ffffffff8026674e>] kthread+0x4e/0x90 [14418.208478] [<ffffffff80213cc9>] child_rip+0xa/0x11 [14418.208485] [<ffffffff80266700>] ? kthread+0x0/0x90 [14418.208492] [<ffffffff80213cbf>] ? child_rip+0x0/0x11 [14418.208496] [14418.208535] INFO: task exim:12992 blocked for more than 120 seconds. [14418.208541] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [14418.208547] exim D ffff88011a54e824 0 12992 12991 [14418.208560] ffff88005b0d7cd8 0000000000000086 0000000000000286 ffff88011a54e8d8 [14418.208578] ffffffff807c4400 ffffffff807c4400 ffffffff807c4400 ffffffff807c4400 [14418.208596] ffffffff807c4400 ffffffff807c4400 ffffffff807c4400 ffffffff807c4400 [14418.208611] Call Trace: [14418.208627] [<ffffffffa0245215>] log_wait_commit+0xc5/0x140 [jbd] [14418.208635] [<ffffffff80266b80>] ? autoremove_wake_function+0x0/0x40 [14418.208643] [<ffffffff8023dc4e>] ? __wake_up+0x4e/0x70 [14418.208658] [<ffffffffa023f1f5>] journal_stop+0x175/0x210 [jbd] [14418.208672] [<ffffffffa023faf9>] journal_force_commit+0x29/0x30 [jbd] [14418.208700] [<ffffffffa02607d7>] ext3_force_commit+0x37/0x40 [ext3] [14418.208718] [<ffffffffa02553d4>] ext3_write_inode+0x44/0x60 [ext3] [14418.208728] [<ffffffff8030fec5>] __sync_single_inode+0x215/0x2f0 [14418.208737] [<ffffffff8030fff8>] __writeback_single_inode+0x58/0x1b0 [14418.208745] [<ffffffff80310186>] sync_inode+0x36/0x60 [14418.208762] [<ffffffffa0253dec>] ext3_sync_file+0xbc/0xe0 [ext3] [14418.208769] [<ffffffff80313e81>] do_fsync+0x71/0xf0 [14418.208776] [<ffffffff80313f36>] __do_fsync+0x36/0x50 [14418.208783] [<ffffffff80313f80>] sys_fsync+0x10/0x20 [14418.208793] [<ffffffff8021288a>] system_call_fastpath+0x16/0x1b [14418.208798] [14451.492032] INFO: task md1_raid1:2339 blocked for more than 120 seconds. [14451.492048] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [14451.492053] md1_raid1 D ffff88011a09dc88 0 2339 2 [14451.492061] ffff88011a09dc20 0000000000000046 ffff88011b170ed0 0000000000000001 [14451.492069] ffffffff807c4400 ffffffff807c4400 ffffffff807c4400 ffffffff807c4400 [14451.492077] ffffffff807c4400 ffffffff807c4400 ffffffff807c4400 ffffffff807c4400 [14451.492083] Call Trace: [14451.492098] [<ffffffff80519767>] io_schedule+0x37/0x50 [14451.492107] [<ffffffff80393ab8>] get_request_wait+0xc8/0x1d0 [14451.492114] [<ffffffff80266b80>] ? autoremove_wake_function+0x0/0x40 [14451.492123] [<ffffffff8038f7be>] ? elv_merge+0x19e/0x1c0 [14451.492128] [<ffffffff80393c3e>] __make_request+0x7e/0x420 [14451.492135] [<ffffffff8023e2f6>] ? __dequeue_entity+0x36/0x90 [14451.492141] [<ffffffff80392c69>] generic_make_request+0x369/0x490 [14451.492148] [<ffffffff8024405b>] ? finish_task_switch+0x2b/0xf0 [14451.492154] [<ffffffff805193a4>] ? thread_return+0x37/0x3c3 [14451.492160] [<ffffffff8025a564>] ? del_timer+0x64/0x70 [14451.492195] [<ffffffffa00b2806>] flush_pending_writes+0x86/0xc0 [raid1] [14451.492204] [<ffffffffa00b5c09>] raid1d+0x49/0x430 [raid1] [14451.492227] [<ffffffffa008aedc>] md_thread+0x5c/0x140 [md_mod] [14451.492236] [<ffffffff80266b80>] ? autoremove_wake_function+0x0/0x40 [14451.492253] [<ffffffffa008ae80>] ? md_thread+0x0/0x140 [md_mod] [14451.492261] [<ffffffff8026674e>] kthread+0x4e/0x90 [14451.492269] [<ffffffff80213cc9>] child_rip+0xa/0x11 [14451.492276] [<ffffffff80266700>] ? kthread+0x0/0x90 [14451.492283] [<ffffffff80213cbf>] ? child_rip+0x0/0x11 [14451.492288] [14451.492328] INFO: task postgres:12994 blocked for more than 120 seconds. [14451.492334] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [14451.492340] postgres D ffff880028019c90 0 12994 5004 [14451.492353] ffff8800750f7998 0000000000000082 ffff8800750f7928 ffffffff8039184d [14451.492372] ffffffff807c4400 ffffffff807c4400 ffffffff807c4400 ffffffff807c4400 [14451.492391] ffffffff807c4400 ffffffff807c4400 ffffffff807c4400 ffffffff807c4400 [14451.492406] Call Trace: [14451.492414] [<ffffffff8039184d>] ? blk_unplug+0x3d/0x70 [14451.492423] [<ffffffff80519767>] io_schedule+0x37/0x50 [14451.492432] [<ffffffff803151d5>] sync_buffer+0x45/0x50 [14451.492438] [<ffffffff80519c4a>] __wait_on_bit_lock+0x5a/0x90 [14451.492445] [<ffffffff80315190>] ? sync_buffer+0x0/0x50 [14451.492452] [<ffffffff80315190>] ? sync_buffer+0x0/0x50 [14451.492460] [<ffffffff80519cf9>] out_of_line_wait_on_bit_lock+0x79/0x90 [14451.492467] [<ffffffff80266bc0>] ? wake_bit_function+0x0/0x50 [14451.492474] [<ffffffff803152b6>] __lock_buffer+0x36/0x40 [14451.492493] [<ffffffffa0240e7e>] do_get_write_access+0x8e/0x500 [jbd] [14451.492501] [<ffffffff80316d46>] ? __getblk+0x36/0x70 [14451.492521] [<ffffffffa0241481>] journal_get_write_access+0x31/0x50 [jbd] [14451.492549] [<ffffffffa0264fe4>] __ext3_journal_get_write_access+0x34/0x70 [ext3] [14451.492569] [<ffffffffa0257463>] ext3_reserve_inode_write+0x93/0xb0 [ext3] [14451.492587] [<ffffffffa02574b6>] ext3_mark_inode_dirty+0x36/0x60 [ext3] [14451.492606] [<ffffffffa0257651>] ext3_dirty_inode+0x61/0xa0 [ext3] [14451.492614] [<ffffffff80310aba>] __mark_inode_dirty+0x3a/0x1d0 [14451.492623] [<ffffffff802ad18b>] ? file_read_actor+0x4b/0x160 [14451.492632] [<ffffffff80302418>] touch_atime+0xd8/0x140 [14451.492641] [<ffffffff802af6f5>] do_generic_file_read+0x445/0x4a0 [14451.492648] [<ffffffff802ad140>] ? file_read_actor+0x0/0x160 [14451.492656] [<ffffffff802af821>] generic_file_aio_read+0xd1/0x1b0 [14451.492664] [<ffffffff802eac79>] do_sync_read+0xf9/0x140 [14451.492672] [<ffffffff80266b80>] ? autoremove_wake_function+0x0/0x40 [14451.492681] [<ffffffff80387ee8>] ? apparmor_file_permission+0x28/0x30 [14451.492690] [<ffffffff80362aa6>] ? security_file_permission+0x16/0x20 [14451.492698] [<ffffffff802eb458>] vfs_read+0xc8/0x130 [14451.492705] [<ffffffff802eb5c5>] sys_read+0x55/0x90 [14451.492715] [<ffffffff8021288a>] system_call_fastpath+0x16/0x1b [14451.492720] [14484.780068] INFO: task exim:12999 blocked for more than 120 seconds. [14484.780085] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [14484.780090] exim D ffff88011a54e824 0 12999 12998 [14484.780098] ffff880065913cd8 0000000000000082 ffff88003d22eb40 0000000000001000 [14484.780106] ffffffff807c4400 ffffffff807c4400 ffffffff807c4400 ffffffff807c4400 [14484.780114] ffffffff807c4400 ffffffff807c4400 ffffffff807c4400 ffffffff807c4400 [14484.780120] Call Trace: [14484.780158] [<ffffffffa0245215>] log_wait_commit+0xc5/0x140 [jbd] [14484.780169] [<ffffffff80266b80>] ? autoremove_wake_function+0x0/0x40 [14484.780183] [<ffffffffa023f1f5>] journal_stop+0x175/0x210 [jbd] [14484.780195] [<ffffffffa023faf9>] journal_force_commit+0x29/0x30 [jbd] [14484.780220] [<ffffffffa02607d7>] ext3_force_commit+0x37/0x40 [ext3] [14484.780236] [<ffffffffa02553d4>] ext3_write_inode+0x44/0x60 [ext3] [14484.780245] [<ffffffff8030fec5>] __sync_single_inode+0x215/0x2f0 [14484.780252] [<ffffffff8030fff8>] __writeback_single_inode+0x58/0x1b0 [14484.780259] [<ffffffff80310186>] sync_inode+0x36/0x60 [14484.780274] [<ffffffffa0253dec>] ext3_sync_file+0xbc/0xe0 [ext3] [14484.780280] [<ffffffff80313e81>] do_fsync+0x71/0xf0 [14484.780284] [<ffffffff80313f36>] __do_fsync+0x36/0x50 [14484.780289] [<ffffffff80313f80>] sys_fsync+0x10/0x20 [14484.780297] [<ffffffff8021288a>] system_call_fastpath+0x16/0x1b [14484.780300] [14518.064040] INFO: task postgres:5406 blocked for more than 120 seconds. [14518.064055] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [14518.064061] postgres D ffff880028006aa8 0 5406 5004 [14518.064069] ffff88011a177978 0000000000000086 ffff88011a177908 ffffffff8039184d [14518.064077] ffffffff807c4400 ffffffff807c4400 ffffffff807c4400 ffffffff807c4400 [14518.064085] ffffffff807c4400 ffffffff807c4400 ffffffff807c4400 ffffffff807c4400 [14518.064091] Call Trace: [14518.064103] [<ffffffff8039184d>] ? blk_unplug+0x3d/0x70 [14518.064114] [<ffffffff80519767>] io_schedule+0x37/0x50 [14518.064121] [<ffffffff803151d5>] sync_buffer+0x45/0x50 [14518.064126] [<ffffffff80519c4a>] __wait_on_bit_lock+0x5a/0x90 [14518.064131] [<ffffffff80315190>] ? sync_buffer+0x0/0x50 [14518.064137] [<ffffffff80315190>] ? sync_buffer+0x0/0x50 [14518.064142] [<ffffffff80519cf9>] out_of_line_wait_on_bit_lock+0x79/0x90 [14518.064149] [<ffffffff80266bc0>] ? wake_bit_function+0x0/0x50 [14518.064155] [<ffffffff803152b6>] __lock_buffer+0x36/0x40 [14518.064188] [<ffffffffa0240e7e>] do_get_write_access+0x8e/0x500 [jbd] [14518.064195] [<ffffffff80316d46>] ? __getblk+0x36/0x70 [14518.064221] [<ffffffffa0241481>] journal_get_write_access+0x31/0x50 [jbd] [14518.064248] [<ffffffffa0264fe4>] __ext3_journal_get_write_access+0x34/0x70 [ext3] [14518.064266] [<ffffffffa0257463>] ext3_reserve_inode_write+0x93/0xb0 [ext3] [14518.064283] [<ffffffffa02574b6>] ext3_mark_inode_dirty+0x36/0x60 [ext3] [14518.064299] [<ffffffffa0257651>] ext3_dirty_inode+0x61/0xa0 [ext3] [14518.064305] [<ffffffff80310aba>] __mark_inode_dirty+0x3a/0x1d0 [14518.064313] [<ffffffff80302314>] file_update_time+0x114/0x140 [14518.064321] [<ffffffff802afe0a>] __generic_file_aio_write_nolock+0x22a/0x470 [14518.064328] [<ffffffff802b015c>] generic_file_aio_write+0x6c/0xd0 [14518.064347] [<ffffffffa0253c8b>] ext3_file_write+0x2b/0xd0 [ext3] [14518.064355] [<ffffffff802eab39>] do_sync_write+0xf9/0x140 [14518.064365] [<ffffffff8026a94f>] ? hrtimer_start+0xdf/0x1b0 [14518.064373] [<ffffffff80266b80>] ? autoremove_wake_function+0x0/0x40 [14518.064382] [<ffffffff80387ee8>] ? apparmor_file_permission+0x28/0x30 [14518.064392] [<ffffffff80362aa6>] ? security_file_permission+0x16/0x20 [14518.064400] [<ffffffff802eb1fb>] vfs_write+0xcb/0x130 [14518.064407] [<ffffffff802eb355>] sys_write+0x55/0x90 [14518.064418] [<ffffffff8021288a>] system_call_fastpath+0x16/0x1b [14518.064423] [14518.064430] INFO: task postgres:5413 blocked for more than 120 seconds. [14518.064435] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [14518.064441] postgres D ffff88002800fb98 0 5413 5004 [14518.064455] ffff88011ccfda58 0000000000000086 ffff88011ccfd9e8 ffffffff8039184d [14518.064474] ffffffff807c4400 ffffffff807c4400 ffffffff807c4400 ffffffff807c4400 [14518.064493] ffffffff807c4400 ffffffff807c4400 ffffffff807c4400 ffffffff807c4400 [14518.064508] Call Trace: [14518.064515] [<ffffffff8039184d>] ? blk_unplug+0x3d/0x70 [14518.064525] [<ffffffff80519767>] io_schedule+0x37/0x50 [14518.064532] [<ffffffff803151d5>] sync_buffer+0x45/0x50 [14518.064539] [<ffffffff80519c4a>] __wait_on_bit_lock+0x5a/0x90 [14518.064546] [<ffffffff80315190>] ? sync_buffer+0x0/0x50 [14518.064554] [<ffffffff80315190>] ? sync_buffer+0x0/0x50 [14518.064561] [<ffffffff80519cf9>] out_of_line_wait_on_bit_lock+0x79/0x90 [14518.064569] [<ffffffff80266bc0>] ? wake_bit_function+0x0/0x50 [14518.064577] [<ffffffff803152b6>] __lock_buffer+0x36/0x40 [14518.064592] [<ffffffffa023f079>] lock_buffer+0x29/0x30 [jbd] [14518.064607] [<ffffffffa02408cb>] journal_invalidatepage+0x8b/0xf0 [jbd] [14518.064625] [<ffffffffa02559f1>] ext3_invalidatepage+0x41/0x50 [ext3] [14518.064634] [<ffffffff802b8e65>] do_invalidatepage+0x25/0x30 [14518.064641] [<ffffffff802b906a>] truncate_complete_page+0x6a/0x80 [14518.064649] [<ffffffff802b921e>] truncate_inode_pages_range+0x16e/0x400 [14518.064669] [<ffffffffa02627c4>] ? __ext3_journal_stop+0x34/0x60 [ext3] [14518.064678] [<ffffffff80300241>] ? switch_names+0xc1/0xd0 [14518.064685] [<ffffffff802b94c5>] truncate_inode_pages+0x15/0x20 [14518.064705] [<ffffffffa025973d>] ext3_delete_inode+0x1d/0x110 [ext3] [14518.064724] [<ffffffffa0259720>] ? ext3_delete_inode+0x0/0x110 [ext3] [14518.064733] [<ffffffff80303749>] generic_delete_inode+0xb9/0x180 [14518.064741] [<ffffffff80303835>] generic_drop_inode+0x25/0x30 [14518.064750] [<ffffffff803024e2>] iput+0x62/0x70 [14518.064758] [<ffffffff802ff1f0>] dentry_iput+0x90/0xe0 [14518.064765] [<ffffffff802ff304>] d_kill+0x44/0x70 [14518.064773] [<ffffffff80301475>] dput+0x95/0x190 [14518.064781] [<ffffffff802f750b>] sys_renameat+0x20b/0x240 [14518.064790] [<ffffffff802cedde>] ? free_pages_and_swap_cache+0x8e/0xb0 [14518.064798] [<ffffffff803a9358>] ? __up_write+0x68/0x140 [14518.064805] [<ffffffff802f755b>] sys_rename+0x1b/0x20 [14518.064814] [<ffffffff8021288a>] system_call_fastpath+0x16/0x1b [14518.064820] [14518.064850] INFO: task firefox:13261 blocked for more than 120 seconds. [14518.064855] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [14518.064861] firefox D ffff88002800e068 0 13261 1 [14518.064874] ffff8800df40fd58 0000000000000082 ffff8800df40fdc8 ffff880000001000 [14518.064893] ffffffff807c4400 ffffffff807c4400 ffffffff807c4400 ffffffff807c4400 [14518.064911] ffffffff807c4400 ffffffff807c4400 ffffffff807c4400 ffffffff807c4400 [14518.064927] Call Trace: [14518.064934] [<ffffffff8039184d>] ? blk_unplug+0x3d/0x70 [14518.064943] [<ffffffff80519767>] io_schedule+0x37/0x50 [14518.064952] [<ffffffff802adbed>] sync_page+0x3d/0x70 [14518.064959] [<ffffffff80519d72>] __wait_on_bit+0x62/0x90 [14518.064966] [<ffffffff802adbb0>] ? sync_page+0x0/0x70 [14518.064974] [<ffffffff802ade84>] wait_on_page_bit+0x74/0x80 [14518.064982] [<ffffffff80266bc0>] ? wake_bit_function+0x0/0x50 [14518.064989] [<ffffffff802b7fc7>] ? pagevec_lookup_tag+0x27/0x40 [14518.064997] [<ffffffff802ae014>] wait_on_page_writeback_range+0x164/0x1a0 [14518.065004] [<ffffffff802b6c84>] ? generic_writepages+0x24/0x30 [14518.065009] [<ffffffff802b6cd5>] ? do_writepages+0x45/0x50 [14518.065018] [<ffffffff802adb25>] ? __filemap_fdatawrite_range+0x55/0x70 [14518.065025] [<ffffffff802ae07f>] filemap_fdatawait+0x2f/0x40 [14518.065033] [<ffffffff80313ed8>] do_fsync+0xc8/0xf0 [14518.065040] [<ffffffff80313f36>] __do_fsync+0x36/0x50 [14518.065047] [<ffffffff80313f63>] sys_fdatasync+0x13/0x20 [14518.065055] [<ffffffff8021288a>] system_call_fastpath+0x16/0x1b (it continues for some more processes) -- [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
