Bug#516374: Bug addon
Hi all!
Hardware: Dell PowerEdge 2900 with Hardware Raid and LVM on it.
This also happen on latest `lenny`'s kernel. mainly while Heavy load on I/O
subsystem:
[275692.879178] INFO: task pdflush:14958 blocked for more than 120 seconds.
[275692.879207] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables
this message.
[275692.879209] pdflush D ffff81012c1cc000 0 14958 2
[275692.879213] ffff8100c3c4dd60 0000000000000046 ffff81012c9e1a00
ffff8100c153b740
[275692.879217] ffff81012cde6990 ffff81012bf42a90 ffff81012cde6c18
0000000000000008
[275692.879220] 0000000000000011 ffffffff8030ddc3 ffff81012c17ae40
ffff81012c17ae40
[275692.879223] Call Trace:
[275692.879300] [<ffffffff8030ddc3>] submit_bio+0xdb/0xe2
[275692.879427] [<ffffffffa01a008d>] :xfs:xfs_buf_wait_unpin+0x86/0xa8
[275692.879439] [<ffffffff8022c264>] default_wake_function+0x0/0xe
[275692.879456] [<ffffffffa01a04d3>] :xfs:xfs_buf_iorequest+0x20/0x61
[275692.882981] [<ffffffffa01a3c6e>] :xfs:xfs_bdstrat_cb+0x36/0x3a
[275692.882981] [<ffffffffa019cda8>] :xfs:xfs_bwrite+0x5e/0xbb
[275692.882981] [<ffffffffa019724d>] :xfs:xfs_syncsub+0x119/0x226
[275692.882981] [<ffffffffa01a5114>] :xfs:xfs_fs_write_super+0x1b/0x21
[275692.882981] [<ffffffff8029ceb3>] sync_supers+0x60/0xa4
[275692.882981] [<ffffffff802784ca>] pdflush+0x0/0x211
[275692.882981] [<ffffffff80278091>] wb_kupdate+0x2d/0x10d
[275692.882981] [<ffffffff802784ca>] pdflush+0x0/0x211
[275692.882981] [<ffffffff8027862e>] pdflush+0x164/0x211
[275692.882981] [<ffffffff80278064>] wb_kupdate+0x0/0x10d
[275692.882981] [<ffffffff802460fb>] kthread+0x47/0x74
[275692.882981] [<ffffffff802301e9>] schedule_tail+0x27/0x5c
[275692.882981] [<ffffffff8020cf28>] child_rip+0xa/0x12
[275692.882981] [<ffffffff802460b4>] kthread+0x0/0x74
[275692.882981] [<ffffffff8020cf1e>] child_rip+0x0/0x12
[275692.882981]
[275720.796000] INFO: task kswapd0:278 blocked for more than 120 seconds.
[275720.796024] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables
this message.
[275720.796029] kswapd0 D 0000000000000001 0 278 2
[275720.796037] ffff81012cd17630 0000000000000046 ffff8100cf7ee4a0
ffffffffa015ad76
[275720.796041] ffff81012f2bc200 ffff81012a9688d0 ffff81012f2bc488
0000000500000000
[275720.796044] ffff81012c1cc248 0000000000000000 ffff81012cd177c0
ffffffffa0195f63
[275720.796047] Call Trace:
[275720.796206] [<ffffffffa015ad76>] :xfs:xfs_alloc_vextent+0x379/0x3ff
[275720.796247] [<ffffffffa0195f63>] :xfs:xfs_trans_log_inode+0x1a/0x42
[275720.796267] [<ffffffff804290f6>] schedule_timeout+0x1e/0xad
[275720.796284] [<ffffffffa0167978>] :xfs:xfs_bmap_add_extent+0x363/0x3a6
[275720.796290] [<ffffffff8042985c>] __down+0x64/0x91
[275720.796304] [<ffffffff802497de>] down+0x27/0x36
[275720.796323] [<ffffffffa0190631>] :xfs:xfs_getsb+0x25/0x32
[275720.796341] [<ffffffffa019592d>] :xfs:xfs_trans_getsb+0x41/0x7d
[275720.796358] [<ffffffffa0194b40>] :xfs:xfs_trans_apply_sb_deltas+0xf/0x21e
[275720.796376] [<ffffffffa0194e55>] :xfs:_xfs_trans_commit+0x106/0x379
[275720.796400] [<ffffffffa018a4e4>] :xfs:xlog_grant_push_ail+0x30/0xce
[275720.799912] [<ffffffffa0186e26>]
:xfs:xfs_iomap_write_allocate+0x27c/0x385
[275720.799912] [<ffffffff803102e3>] blk_recount_segments+0x30/0x5b
[275720.799912] [<ffffffffa018797e>] :xfs:xfs_iomap+0x21b/0x295
[275720.799912] [<ffffffffa019d6fb>] :xfs:xfs_map_blocks+0x2d/0x5f
[275720.799912] [<ffffffffa019e7fd>] :xfs:xfs_page_state_convert+0x2a2/0x54f
[275720.799912] [<ffffffff80279623>] __pagevec_release_nonlru+0x52/0x5f
[275720.799912] [<ffffffffa019ec09>] :xfs:xfs_vm_writepage+0xb4/0xeb
[275720.799912] [<ffffffff8027abf2>] shrink_page_list+0x32d/0x559
[275720.799912] [<ffffffff8027af4c>] shrink_inactive_list+0x12e/0x39f
[275720.799912] [<ffffffff8027b2a0>] shrink_zone+0xe3/0x106
[275720.799912] [<ffffffff8027bb06>] kswapd+0x303/0x4a3
[275720.799912] [<ffffffff8027a6b7>] isolate_pages_global+0x0/0x2f
[275720.799912] [<ffffffff80428e9f>] thread_return+0x6b/0xac
[275720.799912] [<ffffffff80246221>] autoremove_wake_function+0x0/0x2e
[275720.799912] [<ffffffff8027b803>] kswapd+0x0/0x4a3
[275720.799912] [<ffffffff802460fb>] kthread+0x47/0x74
[275720.799912] [<ffffffff802301e9>] schedule_tail+0x27/0x5c
[275720.799912] [<ffffffff8020cf28>] child_rip+0xa/0x12
[275720.799912] [<ffffffff8021a826>] lapic_next_event+0xf/0x13
[275720.799912] [<ffffffff802460b4>] kthread+0x0/0x74
[275720.799912] [<ffffffff8020cf1e>] child_rip+0x0/0x12
[275720.799912]
[275722.943764] INFO: task nmbd:21913 blocked for more than 120 seconds.
[275722.943777] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables
this message.
[275722.943779] nmbd D ffff8101293160c0 0 21913 20814
[275722.943784] ffff8100082c3a38 0000000000000086 ffff81012b50c9c0
0000000000014005
[275722.943788] ffff81012a0104c0 ffff81012bfc51a0 ffff81012a010748
0000000000014005
[275722.943790] ffff810106d429a8 0000000000000246 0000000000000001
0000000000000000
[275722.943794] Call Trace:
[275722.943867] [<ffffffff804290f6>] schedule_timeout+0x1e/0xad
[275722.943923] [<ffffffffa01712c4>] :xfs:xfs_da_do_buf+0x4c5/0x636
[275722.943947] [<ffffffffa019d20e>] :xfs:kmem_zone_alloc+0x52/0x9f
[275722.943952] [<ffffffff8042985c>] __down+0x64/0x91
[275722.943963] [<ffffffff802497de>] down+0x27/0x36
[275722.943980] [<ffffffffa0190631>] :xfs:xfs_getsb+0x25/0x32
[275722.943999] [<ffffffffa019592d>] :xfs:xfs_trans_getsb+0x41/0x7d
[275722.944018] [<ffffffffa0194b40>] :xfs:xfs_trans_apply_sb_deltas+0xf/0x21e
[275722.944037] [<ffffffffa0194e55>] :xfs:_xfs_trans_commit+0x106/0x379
[275722.944061] [<ffffffffa0173ac8>] :xfs:xfs_dir_createname+0xeb/0x12d
[275722.947595] [<ffffffffa0196981>] :xfs:xfs_dir_ialloc+0x84/0x2bb
[275722.947595] [<ffffffffa01a3532>] :xfs:xfs_ichgtime+0x17/0xb2
[275722.947595] [<ffffffffa019a666>] :xfs:xfs_create+0x377/0x477
[275722.947595] [<ffffffffa015e0de>] :xfs:xfs_attr_get+0x8d/0x9e
[275722.947595] [<ffffffffa01a3777>] :xfs:xfs_vn_mknod+0x159/0x247
[275722.947595] [<ffffffff802a28e1>] vfs_create+0xcf/0x140
[275722.947595] [<ffffffff802a548a>] do_filp_open+0x1e3/0x7c4
[275722.947595] [<ffffffff80221fbc>] do_page_fault+0x5d8/0x9c8
[275722.947595] [<ffffffff802996ae>] do_sys_open+0x46/0xc3
[275722.947595] [<ffffffff8020beca>] system_call_after_swapgs+0x8a/0x8f
[275722.947595]
[275744.420128] INFO: task nmbd:21914 blocked for more than 120 seconds.
[275744.420138] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables
this message.
[275744.420140] nmbd D 0000000000000013 0 21914 20814
[275744.420145] ffff8100aed03de0 0000000000000086 ffff810012da0000
ffff81012c8a6304
[275744.420148] ffff81012f31d6b0 ffff81012c3b4de0 ffff81012f31d938
0000000200000000
[275744.420151] ffff81012c8a6300 ffff8100aed03e68 00000000ffffffe9
ffff81012c8a6304
[275744.420153] Call Trace:
[275744.420222] [<ffffffff802a46ca>] do_path_lookup+0x158/0x1cf
[275744.420238] [<ffffffff8042952d>] __mutex_lock_slowpath+0x64/0x9b
[275744.420243] [<ffffffff80429392>] mutex_lock+0xa/0xb
[275744.420245] [<ffffffff802a53c1>] do_filp_open+0x11a/0x7c4
[275744.420255] [<ffffffff80221fbc>] do_page_fault+0x5d8/0x9c8
[275744.420266] [<ffffffff802995c4>] get_unused_fd_flags+0x71/0x115
[275744.420270] [<ffffffff802996ae>] do_sys_open+0x46/0xc3
[275744.420275] [<ffffffff8020beca>] system_call_after_swapgs+0x8a/0x8f
and so on....
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