2008/11/3 Alexander Beregalov <a.beregalov@xxxxxxxxx>:
> Hi
>
> 2.6.28-rc3-next-20081103 on sparc64
The same on SMP x86_64, 2.6.28-rc4-next-20081113
Please have a look anybody
[ 5383.663175] Showing all locks held in the system:
[ 5383.663187] 1 lock held by agetty/1958:
[ 5383.663190] #0: (&tty->atomic_read_lock){--..}, at:
[<ffffffff80400ded>] n_tty_read+0x29b/0x7bd
[ 5383.663203] 1 lock held by agetty/1959:
[ 5383.663205] #0: (&tty->atomic_read_lock){--..}, at:
[<ffffffff80400ded>] n_tty_read+0x29b/0x7bd
[ 5383.663214] 1 lock held by agetty/1960:
[ 5383.663216] #0: (&tty->atomic_read_lock){--..}, at:
[<ffffffff80400ded>] n_tty_read+0x29b/0x7bd
[ 5383.663224] 1 lock held by agetty/1963:
[ 5383.663226] #0: (&tty->atomic_read_lock){--..}, at:
[<ffffffff80400ded>] n_tty_read+0x29b/0x7bd
[ 5383.663234] 1 lock held by agetty/1964:
[ 5383.663236] #0: (&tty->atomic_read_lock){--..}, at:
[<ffffffff80400ded>] n_tty_read+0x29b/0x7bd
[ 5383.663244] 1 lock held by agetty/1966:
[ 5383.663246] #0: (&tty->atomic_read_lock){--..}, at:
[<ffffffff80400ded>] n_tty_read+0x29b/0x7bd
[ 5383.663255] 2 locks held by bash/2011:
[ 5383.663257] #0: (sysrq_key_table_lock){....}, at:
[<ffffffff804102fb>] __handle_sysrq+0x26/0x158
[ 5383.663264] #1: (tasklist_lock){..--}, at: [<ffffffff802569d8>]
debug_show_all_locks+0x4d/0x17f
[ 5383.663274] 1 lock held by bash/2028:
[ 5383.663276] #0: (&(&ip->i_iolock)->mr_lock){----}, at:
[<ffffffff8037646b>] xfs_ilock+0x44/0x79
[ 5383.663285]
[ 5383.663287] =============================================
[ 5383.663288]
[ 5394.063573] SysRq : Show Blocked State
[ 5394.063608] task PC stack pid father
[ 5394.063624] pdflush D ffff880004d9a740 3256 313 2
[ 5394.063631] ffff88007d265d50 0000000000000046 ffff88007dac4a80
ffff88007dac4a80
[ 5394.063638] ffffffff80930740 ffffffff80930740 ffff88007dac4a80
ffff88007d8092a0
[ 5394.063645] ffff88007dac4dc8 0000000180231acf ffff88007d265ce0
ffff88007dac4dc8
[ 5394.063652] Call Trace:
[ 5394.063661] [<ffffffff8052792b>] ? _spin_unlock_irqrestore+0x66/0x74
[ 5394.063667] [<ffffffff80240834>] ? __mod_timer+0xd3/0xe5
[ 5394.063671] [<ffffffff80525c34>] schedule_timeout+0x8d/0xb4
[ 5394.063675] [<ffffffff802401cb>] ? process_timeout+0x0/0xb
[ 5394.063679] [<ffffffff8024077e>] ? __mod_timer+0x1d/0xe5
[ 5394.063683] [<ffffffff80524f75>] __sched_text_start+0x2d/0x39
[ 5394.063688] [<ffffffff80282c15>] congestion_wait+0x6b/0x87
[ 5394.063692] [<ffffffff8024a5db>] ? autoremove_wake_function+0x0/0x38
[ 5394.063697] [<ffffffff802b80f8>] ? writeback_inodes+0xec/0xf4
[ 5394.063702] [<ffffffff8027bc65>] wb_kupdate+0xc4/0x11e
[ 5394.063706] [<ffffffff8027c6bf>] pdflush+0x11a/0x1cd
[ 5394.063710] [<ffffffff8027bba1>] ? wb_kupdate+0x0/0x11e
[ 5394.063713] [<ffffffff8027c5a5>] ? pdflush+0x0/0x1cd
[ 5394.063717] [<ffffffff8024a1e9>] kthread+0x49/0x76
[ 5394.063722] [<ffffffff8020c8a9>] child_rip+0xa/0x11
[ 5394.063727] [<ffffffff80231966>] ? finish_task_switch+0x0/0xb9
[ 5394.063730] [<ffffffff8020bd98>] ? restore_args+0x0/0x30
[ 5394.063734] [<ffffffff8024a1a0>] ? kthread+0x0/0x76
[ 5394.063737] [<ffffffff8020c89f>] ? child_rip+0x0/0x11
[ 5394.063741] xfsbufd D ffff880005138740 6032 695 2
[ 5394.063748] ffff88007cf35c80 0000000000000046 ffff88007cf35bf0
ffffffff80255c61
[ 5394.063754] ffffffff80930740 ffffffff80930740 ffff88007cf70000
ffff88007dfa4a80
[ 5394.063760] ffff88007cf70348 0000000380255c61 ffff88007cf70000
ffff88007cf70348
[ 5394.063765] Call Trace:
[ 5394.063770] [<ffffffff80255c61>] ? get_lock_stats+0x2d/0x5c
[ 5394.063773] [<ffffffff80255c9e>] ? put_lock_stats+0xe/0x27
[ 5394.063777] [<ffffffff802300af>] ? get_parent_ip+0x11/0x41
[ 5394.063781] [<ffffffff80525a88>] io_schedule+0x2d/0x39
[ 5394.063786] [<ffffffff803a8cec>] get_request_wait+0x10a/0x1a6
[ 5394.063790] [<ffffffff8024a5db>] ? autoremove_wake_function+0x0/0x38
[ 5394.063794] [<ffffffff803a51c5>] ? elv_merge+0x16d/0x19e
[ 5394.063798] [<ffffffff803a913b>] __make_request+0x3b3/0x4b1
[ 5394.063802] [<ffffffff80277502>] ? mempool_alloc+0x56/0x10e
[ 5394.063806] [<ffffffff803a792c>] generic_make_request+0x2f4/0x337
[ 5394.063810] [<ffffffff80231acf>] ? sub_preempt_count+0xb0/0xc4
[ 5394.063813] [<ffffffff803a7a08>] submit_bio+0x99/0xa2
[ 5394.063818] [<ffffffff803939fa>] _xfs_buf_ioapply+0x215/0x243
[ 5394.063822] [<ffffffff8039477d>] xfs_buf_iorequest+0x44/0x75
[ 5394.063826] [<ffffffff803983c7>] xfs_bdstrat_cb+0x19/0x3e
[ 5394.063830] [<ffffffff803947c0>] xfs_buf_iostrategy+0x12/0x1b
[ 5394.063833] [<ffffffff803949e6>] xfsbufd+0xa8/0xe9
[ 5394.063837] [<ffffffff8039493e>] ? xfsbufd+0x0/0xe9
[ 5394.063840] [<ffffffff8024a1e9>] kthread+0x49/0x76
[ 5394.063844] [<ffffffff8020c8a9>] child_rip+0xa/0x11
[ 5394.063848] [<ffffffff80231966>] ? finish_task_switch+0x0/0xb9
[ 5394.063856] [<ffffffff8020bd98>] ? restore_args+0x0/0x30
[ 5394.063858] [<ffffffff8024a1a0>] ? kthread+0x0/0x76
[ 5394.063861] [<ffffffff8020c89f>] ? child_rip+0x0/0x11
[ 5394.063863] bash D ffff880004d9a740 5240 2028 2015
[ 5394.063868] ffff8800730f1a88 0000000000000046 0000000000000001
ffff88007ca26430
[ 5394.063872] ffffffff80930740 ffffffff80930740 ffff88007ca25d20
ffff88007df62540
[ 5394.063876] ffff88007ca26068 0000000180aacde0 ffff8800730f1a38
ffff88007ca26068
[ 5394.063880] Call Trace:
[ 5394.063883] [<ffffffff803a8721>] ? generic_unplug_device+0x1d/0x46
[ 5394.063885] [<ffffffff80525a88>] io_schedule+0x2d/0x39
[ 5394.063888] [<ffffffff80275742>] sync_page+0x69/0x70
[ 5394.063890] [<ffffffff80275757>] sync_page_killable+0xe/0x46
[ 5394.063893] [<ffffffff80525cf1>] __wait_on_bit_lock+0x45/0x79
[ 5394.063895] [<ffffffff80275749>] ? sync_page_killable+0x0/0x46
[ 5394.063897] [<ffffffff802755ed>] __lock_page_killable+0x63/0x6a
[ 5394.063900] [<ffffffff8024a613>] ? wake_bit_function+0x0/0x2a
[ 5394.063902] [<ffffffff80275510>] ? find_get_page+0x75/0x85
[ 5394.063905] [<ffffffff80275626>] lock_page_killable+0x32/0x3a
[ 5394.063907] [<ffffffff80276de8>] generic_file_aio_read+0x39d/0x581
[ 5394.063910] [<ffffffff8037646b>] ? xfs_ilock+0x44/0x79
[ 5394.063913] [<ffffffff80399285>] xfs_read+0x17b/0x1f2
[ 5394.063915] [<ffffffff8039576a>] xfs_file_aio_read+0x51/0x53
[ 5394.063919] [<ffffffff8029e678>] do_sync_read+0xe7/0x12d
[ 5394.063921] [<ffffffff80231acf>] ? sub_preempt_count+0xb0/0xc4
[ 5394.063924] [<ffffffff8024a5db>] ? autoremove_wake_function+0x0/0x38
[ 5394.063926] [<ffffffff80255d69>] ? lock_release_holdtime+0xb2/0xb7
[ 5394.063929] [<ffffffff8029ef37>] vfs_read+0xa4/0xde
[ 5394.063932] [<ffffffff802a3692>] kernel_read+0x43/0x5b
[ 5394.063935] [<ffffffff80283f31>] ? might_fault+0x4d/0xa1
[ 5394.063937] [<ffffffff802a3787>] prepare_binprm+0xdd/0xe1
[ 5394.063939] [<ffffffff802a3ddc>] do_execve+0xde/0x1da
[ 5394.063942] [<ffffffff80209ce6>] sys_execve+0x3e/0x60
[ 5394.063944] [<ffffffff8020bb8a>] stub_execve+0x6a/0xc0
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