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Date: Tue, 15 Jun 2010 14:24:34 +0300
From: Sergey Senozhatsky <sergey.senozhatsky@...il.com>
To: Alexander Viro <viro@...iv.linux.org.uk>
Cc: Andrew Morton <akpm@...ux-foundation.org>,
Peter Zijlstra <a.p.zijlstra@...llo.nl>,
Sage Weil <sage@...dream.net>, linux-fsdevel@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: inconsistent lock state
Hello,
kernel: [ 3272.351191]
kernel: [ 3272.351194] =================================
kernel: [ 3272.351199] [ INFO: inconsistent lock state ]
kernel: [ 3272.351204] 2.6.35-rc3-dbg-00106-ga75e02b-dirty #15
kernel: [ 3272.351206] ---------------------------------
kernel: [ 3272.351210] inconsistent {IN-HARDIRQ-W} -> {HARDIRQ-ON-W} usage.
kernel: [ 3272.351215] X/3827 [HC0[0]:SC0[0]:HE1:SE1] takes:
kernel: [ 3272.351218] (&(&new->fa_lock)->rlock){?.-...}, at: [<c10aefb4>] kill_fasync+0x37/0x71
kernel: [ 3272.351232] {IN-HARDIRQ-W} state was registered at:
kernel: [ 3272.351235] [<c104e95c>] __lock_acquire+0x281/0xbe1
kernel: [ 3272.351243] [<c104f652>] lock_acquire+0x59/0x70
kernel: [ 3272.351248] [<c12c6c48>] _raw_spin_lock+0x25/0x34
kernel: [ 3272.351255] [<c10aefb4>] kill_fasync+0x37/0x71
kernel: [ 3272.351261] [<fd220c81>] evdev_event+0x135/0x190 [evdev]
kernel: [ 3272.351275] [<c1232003>] input_pass_event+0x6f/0xae
kernel: [ 3272.351283] [<c1232ef5>] input_handle_event+0x38d/0x396
kernel: [ 3272.351288] [<c1232fbf>] input_event+0x4f/0x62
kernel: [ 3272.351293] [<c12368e4>] input_sync+0xe/0x11
kernel: [ 3272.351299] [<c1236d72>] atkbd_interrupt+0x48b/0x541
kernel: [ 3272.351304] [<c122ecb2>] serio_interrupt+0x35/0x68
kernel: [ 3272.351309] [<c122fbff>] i8042_interrupt+0x264/0x26e
kernel: [ 3272.351314] [<c106bb02>] handle_IRQ_event+0x1d/0x98
kernel: [ 3272.351321] [<c106d506>] handle_edge_irq+0xc0/0x107
kernel: [ 3272.351326] [<c10045ca>] handle_irq+0x1a/0x20
kernel: [ 3272.351332] [<c100435f>] do_IRQ+0x43/0x8d
kernel: [ 3272.351337] [<c1002d75>] common_interrupt+0x35/0x3c
kernel: [ 3272.351342] [<c124723d>] cpuidle_idle_call+0x6a/0xa0
kernel: [ 3272.351349] [<c100170d>] cpu_idle+0x89/0xbe
kernel: [ 3272.351354] [<c12b6d11>] rest_init+0xb5/0xba
kernel: [ 3272.351361] [<c148a7bf>] start_kernel+0x33b/0x340
kernel: [ 3272.351368] [<c148a0c9>] i386_start_kernel+0xc9/0xd0
kernel: [ 3272.351374] irq event stamp: 54104917
kernel: [ 3272.351377] hardirqs last enabled at (54104917): [<c12c70f2>] _raw_spin_unlock_irqrestore+0x36/0x5b
kernel: [ 3272.351384] hardirqs last disabled at (54104916): [<c12c6ced>] _raw_spin_lock_irqsave+0x13/0x42
kernel: [ 3272.351391] softirqs last enabled at (54104732): [<c1032cf2>] __do_softirq+0xfd/0x10c
kernel: [ 3272.351398] softirqs last disabled at (54104703): [<c1032d30>] do_softirq+0x2f/0x47
kernel: [ 3272.351404]
kernel: [ 3272.351405] other info that might help us debug this:
kernel: [ 3272.351409] 3 locks held by X/3827:
kernel: [ 3272.351412] #0: (rcu_read_lock){.+.+..}, at: [<c124fdfa>] rcu_read_lock+0x0/0x26
kernel: [ 3272.351423] #1: (rcu_read_lock){.+.+..}, at: [<c124d5d9>] rcu_read_lock+0x0/0x26
kernel: [ 3272.351432] #2: (rcu_read_lock){.+.+..}, at: [<c10ae429>] rcu_read_lock+0x0/0x26
kernel: [ 3272.351442]
kernel: [ 3272.351443] stack backtrace:
kernel: [ 3272.351448] Pid: 3827, comm: X Not tainted 2.6.35-rc3-dbg-00106-ga75e02b-dirty #15
kernel: [ 3272.351451] Call Trace:
kernel: [ 3272.351456] [<c12c4ff1>] ? printk+0xf/0x11
kernel: [ 3272.351462] [<c104e51a>] valid_state+0x133/0x141
kernel: [ 3272.351468] [<c104e5f7>] mark_lock+0xcf/0x1b3
kernel: [ 3272.351473] [<c104e54e>] ? mark_lock+0x26/0x1b3
kernel: [ 3272.351479] [<c104dfd2>] ? check_usage_backwards+0x0/0x68
kernel: [ 3272.351484] [<c104e9d0>] __lock_acquire+0x2f5/0xbe1
kernel: [ 3272.351489] [<c104ea44>] ? __lock_acquire+0x369/0xbe1
kernel: [ 3272.351495] [<c104ea44>] ? __lock_acquire+0x369/0xbe1
kernel: [ 3272.351502] [<c102ab40>] ? try_to_wake_up+0x2a8/0x2bb
kernel: [ 3272.351508] [<c104f652>] lock_acquire+0x59/0x70
kernel: [ 3272.351513] [<c10aefb4>] ? kill_fasync+0x37/0x71
kernel: [ 3272.351519] [<c12c6c48>] _raw_spin_lock+0x25/0x34
kernel: [ 3272.351524] [<c10aefb4>] ? kill_fasync+0x37/0x71
kernel: [ 3272.351529] [<c10aefb4>] kill_fasync+0x37/0x71
kernel: [ 3272.351534] [<c124d694>] sock_wake_async+0x77/0x83
kernel: [ 3272.351540] [<c124fe4d>] sk_wake_async+0x2d/0x32
kernel: [ 3272.351545] [<c1250004>] sock_def_readable+0x45/0x51
kernel: [ 3272.351551] [<c12b0247>] unix_stream_sendmsg+0x1e2/0x269
kernel: [ 3272.351557] [<c124fe6e>] ? rcu_read_unlock+0x1c/0x1e
kernel: [ 3272.351562] [<c124cf1a>] __sock_sendmsg+0x51/0x5a
kernel: [ 3272.351567] [<c124cff7>] sock_aio_write+0xd4/0xdd
kernel: [ 3272.351575] [<c10a4d95>] do_sync_readv_writev+0x84/0xb7
kernel: [ 3272.351582] [<c10a4288>] ? copy_from_user+0x8/0xa
kernel: [ 3272.351587] [<c10a4e69>] ? rw_copy_check_uvector+0x55/0xc7
kernel: [ 3272.351594] [<c1164082>] ? security_file_permission+0xf/0x11
kernel: [ 3272.351599] [<c10a47e5>] ? rw_verify_area+0x90/0xac
kernel: [ 3272.351605] [<c10a4f58>] do_readv_writev+0x7d/0xdf
kernel: [ 3272.351610] [<c124cf23>] ? sock_aio_write+0x0/0xdd
kernel: [ 3272.351615] [<c1164082>] ? security_file_permission+0xf/0x11
kernel: [ 3272.351621] [<c10a47e5>] ? rw_verify_area+0x90/0xac
kernel: [ 3272.351626] [<c10a4ff3>] vfs_writev+0x39/0x42
kernel: [ 3272.351632] [<c10a5102>] sys_writev+0x3b/0x8c
kernel: [ 3272.351637] [<c10027d3>] sysenter_do_call+0x12/0x32
Sergey
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