Attachment 277661 Details for Bug 411581 – Kernel message about circular lock dependency

Kernel message about circular lock dependency

log.txt (text/plain), 8.89 KB, created by Petr Tuma on 2007-12-05 06:14:35 UTC

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Creator: Petr Tuma

Created: 2007-12-05 06:14:35 UTC

Size: 8.89 KB

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obsolete

>Dec  5 06:54:28 kalessin kernel: =======================================================
>Dec  5 06:54:28 kalessin kernel: [ INFO: possible circular locking dependency detected ]
>Dec  5 06:54:28 kalessin kernel: 2.6.24-0.62.rc3.git5.fc9 #1
>Dec  5 06:54:28 kalessin kernel: -------------------------------------------------------
>Dec  5 06:54:28 kalessin kernel: iwl4965/0/1233 is trying to acquire lock:
>Dec  5 06:54:28 kalessin kernel:  (&priv->mutex){--..}, at: [<ffffffff8819b96c>] iwl4965_bg_init_alive_start+0x35/0x577 [iwl4965]
>Dec  5 06:54:28 kalessin kernel: 
>Dec  5 06:54:28 kalessin kernel: but task is already holding lock:
>Dec  5 06:54:28 kalessin kernel:  (&(&priv->init_alive_start)->work){--..}, at: [<ffffffff81046c6c>] run_workqueue+0x95/0x1df
>Dec  5 06:54:28 kalessin kernel: 
>Dec  5 06:54:28 kalessin kernel: which lock already depends on the new lock.
>Dec  5 06:54:28 kalessin kernel: 
>Dec  5 06:54:28 kalessin kernel: 
>Dec  5 06:54:28 kalessin kernel: the existing dependency chain (in reverse order) is:
>Dec  5 06:54:28 kalessin kernel: 
>Dec  5 06:54:28 kalessin kernel: -> #1 (&(&priv->init_alive_start)->work){--..}:
>Dec  5 06:54:28 kalessin kernel:        [<ffffffff81056e0a>] __lock_acquire+0xacf/0xce5
>Dec  5 06:54:28 kalessin kernel:        [<ffffffff8819d86a>] iwl4965_bg_restart+0x0/0x54 [iwl4965]
>Dec  5 06:54:28 kalessin kernel:        [<ffffffff8105743f>] lock_acquire+0x5a/0x73
>Dec  5 06:54:28 kalessin kernel:        [<ffffffff81047462>] __cancel_work_timer+0x93/0x1b5
>Dec  5 06:54:28 kalessin kernel:        [<ffffffff81047497>] __cancel_work_timer+0xc8/0x1b5
>Dec  5 06:54:28 kalessin kernel:        [<ffffffff81055cd8>] mark_held_locks+0x49/0x67
>Dec  5 06:54:28 kalessin kernel:        [<ffffffff81277388>] _spin_unlock_irqrestore+0x3e/0x44
>Dec  5 06:54:28 kalessin kernel:        [<ffffffff8819d86a>] iwl4965_bg_restart+0x0/0x54 [iwl4965]
>Dec  5 06:54:28 kalessin kernel:        [<ffffffff81055eca>] trace_hardirqs_on+0x12e/0x151
>Dec  5 06:54:28 kalessin kernel:        [<ffffffff81040310>] try_to_del_timer_sync+0x51/0x5a
>Dec  5 06:54:28 kalessin kernel:        [<ffffffff8819d86a>] iwl4965_bg_restart+0x0/0x54 [iwl4965]
>Dec  5 06:54:28 kalessin kernel:        [<ffffffff81055eca>] trace_hardirqs_on+0x12e/0x151
>Dec  5 06:54:28 kalessin kernel:        [<ffffffff8819d86a>] iwl4965_bg_restart+0x0/0x54 [iwl4965]
>Dec  5 06:54:28 kalessin kernel:        [<ffffffff88196a23>] __iwl4965_down+0x9a/0x806 [iwl4965]
>Dec  5 06:54:28 kalessin kernel:        [<ffffffff8819d86a>] iwl4965_bg_restart+0x0/0x54 [iwl4965]
>Dec  5 06:54:28 kalessin kernel:        [<ffffffff8819d89c>] iwl4965_bg_restart+0x32/0x54 [iwl4965]
>Dec  5 06:54:28 kalessin kernel:        [<ffffffff81046cb6>] run_workqueue+0xdf/0x1df
>Dec  5 06:54:28 kalessin kernel:        [<ffffffff81047783>] worker_thread+0x0/0xe7
>Dec  5 06:54:28 kalessin kernel:        [<ffffffff81047860>] worker_thread+0xdd/0xe7
>Dec  5 06:54:28 kalessin kernel:        [<ffffffff8104ad0a>] autoremove_wake_function+0x0/0x2e
>Dec  5 06:54:28 kalessin kernel:        [<ffffffff8104abec>] kthread+0x47/0x73
>Dec  5 06:54:28 kalessin kernel:        [<ffffffff812769e8>] trace_hardirqs_on_thunk+0x35/0x3a
>Dec  5 06:54:28 kalessin kernel:        [<ffffffff8100cdd8>] child_rip+0xa/0x12
>Dec  5 06:54:28 kalessin kernel:        [<ffffffff8100c4ef>] restore_args+0x0/0x30
>Dec  5 06:54:28 kalessin kernel:        [<ffffffff811e90f8>] menu_reflect+0x0/0x75
>Dec  5 06:54:28 kalessin kernel:        [<ffffffff8104aa75>] kthreadd+0x115/0x13a
>Dec  5 06:54:28 kalessin kernel:        [<ffffffff8104aba5>] kthread+0x0/0x73
>Dec  5 06:54:28 kalessin kernel:        [<ffffffff8100cdce>] child_rip+0x0/0x12
>Dec  5 06:54:28 kalessin kernel:        [<ffffffffffffffff>] 0xffffffffffffffff
>Dec  5 06:54:28 kalessin kernel: 
>Dec  5 06:54:28 kalessin kernel: -> #0 (&priv->mutex){--..}:
>Dec  5 06:54:28 kalessin kernel:        [<ffffffff810555c7>] print_circular_bug_header+0xcc/0xd3
>Dec  5 06:54:28 kalessin kernel:        [<ffffffff81056d0f>] __lock_acquire+0x9d4/0xce5
>Dec  5 06:54:28 kalessin kernel:        [<ffffffff8819b96c>] iwl4965_bg_init_alive_start+0x35/0x577 [iwl4965]
>Dec  5 06:54:28 kalessin kernel:        [<ffffffff8105743f>] lock_acquire+0x5a/0x73
>Dec  5 06:54:28 kalessin kernel:        [<ffffffff8819b96c>] iwl4965_bg_init_alive_start+0x35/0x577 [iwl4965]
>Dec  5 06:54:28 kalessin kernel:        [<ffffffff810538e1>] debug_mutex_lock_common+0x16/0x23
>Dec  5 06:54:28 kalessin kernel:        [<ffffffff81275c7a>] mutex_lock_nested+0x11c/0x2d0
>Dec  5 06:54:28 kalessin kernel:        [<ffffffff81056e2d>] __lock_acquire+0xaf2/0xce5
>Dec  5 06:54:28 kalessin kernel:        [<ffffffff8819b937>] iwl4965_bg_init_alive_start+0x0/0x577 [iwl4965]
>Dec  5 06:54:28 kalessin kernel:        [<ffffffff8819b96c>] iwl4965_bg_init_alive_start+0x35/0x577 [iwl4965]
>Dec  5 06:54:28 kalessin kernel:        [<ffffffff8819b937>] iwl4965_bg_init_alive_start+0x0/0x577 [iwl4965]
>Dec  5 06:54:28 kalessin kernel:        [<ffffffff8819b937>] iwl4965_bg_init_alive_start+0x0/0x577 [iwl4965]
>Dec  5 06:54:28 kalessin kernel:        [<ffffffff81046cb6>] run_workqueue+0xdf/0x1df
>Dec  5 06:54:28 kalessin kernel:        [<ffffffff81047783>] worker_thread+0x0/0xe7
>Dec  5 06:54:28 kalessin kernel:        [<ffffffff81047860>] worker_thread+0xdd/0xe7
>Dec  5 06:54:28 kalessin kernel:        [<ffffffff8104ad0a>] autoremove_wake_function+0x0/0x2e
>Dec  5 06:54:28 kalessin kernel:        [<ffffffff8104abec>] kthread+0x47/0x73
>Dec  5 06:54:28 kalessin kernel:        [<ffffffff812769e8>] trace_hardirqs_on_thunk+0x35/0x3a
>Dec  5 06:54:28 kalessin kernel:        [<ffffffff8100cdd8>] child_rip+0xa/0x12
>Dec  5 06:54:28 kalessin kernel:        [<ffffffff8100c4ef>] restore_args+0x0/0x30
>Dec  5 06:54:28 kalessin kernel:        [<ffffffff811e90f8>] menu_reflect+0x0/0x75
>Dec  5 06:54:28 kalessin kernel:        [<ffffffff8104aa75>] kthreadd+0x115/0x13a
>Dec  5 06:54:28 kalessin kernel:        [<ffffffff8104aba5>] kthread+0x0/0x73
>Dec  5 06:54:28 kalessin kernel:        [<ffffffff8100cdce>] child_rip+0x0/0x12
>Dec  5 06:54:28 kalessin kernel:        [<ffffffffffffffff>] 0xffffffffffffffff
>Dec  5 06:54:28 kalessin kernel: 
>Dec  5 06:54:28 kalessin kernel: other info that might help us debug this:
>Dec  5 06:54:28 kalessin kernel: 
>Dec  5 06:54:28 kalessin kernel: 2 locks held by iwl4965/0/1233:
>Dec  5 06:54:28 kalessin kernel:  #0:  (iwl4965){--..}, at: [<ffffffff81046c6c>] run_workqueue+0x95/0x1df
>Dec  5 06:54:28 kalessin kernel:  #1:  (&(&priv->init_alive_start)->work){--..}, at: [<ffffffff81046c6c>] run_workqueue+0x95/0x1df
>Dec  5 06:54:28 kalessin kernel: 
>Dec  5 06:54:28 kalessin kernel: stack backtrace:
>Dec  5 06:54:28 kalessin kernel: Pid: 1233, comm: iwl4965/0 Not tainted 2.6.24-0.62.rc3.git5.fc9 #1
>Dec  5 06:54:28 kalessin kernel: 
>Dec  5 06:54:28 kalessin kernel: Call Trace:
>Dec  5 06:54:28 kalessin kernel:  [<ffffffff810551b7>] print_circular_bug_tail+0x69/0x72
>Dec  5 06:54:28 kalessin kernel:  [<ffffffff810555c7>] print_circular_bug_header+0xcc/0xd3
>Dec  5 06:54:28 kalessin kernel:  [<ffffffff81056d0f>] __lock_acquire+0x9d4/0xce5
>Dec  5 06:54:28 kalessin kernel:  [<ffffffff8819b96c>] :iwl4965:iwl4965_bg_init_alive_start+0x35/0x577
>Dec  5 06:54:28 kalessin kernel:  [<ffffffff8105743f>] lock_acquire+0x5a/0x73
>Dec  5 06:54:28 kalessin kernel:  [<ffffffff8819b96c>] :iwl4965:iwl4965_bg_init_alive_start+0x35/0x577
>Dec  5 06:54:28 kalessin kernel:  [<ffffffff810538e1>] debug_mutex_lock_common+0x16/0x23
>Dec  5 06:54:28 kalessin kernel:  [<ffffffff81275c7a>] mutex_lock_nested+0x11c/0x2d0
>Dec  5 06:54:28 kalessin kernel:  [<ffffffff81056e2d>] __lock_acquire+0xaf2/0xce5
>Dec  5 06:54:28 kalessin kernel:  [<ffffffff8819b937>] :iwl4965:iwl4965_bg_init_alive_start+0x0/0x577
>Dec  5 06:54:28 kalessin kernel:  [<ffffffff8819b96c>] :iwl4965:iwl4965_bg_init_alive_start+0x35/0x577
>Dec  5 06:54:28 kalessin kernel:  [<ffffffff8819b937>] :iwl4965:iwl4965_bg_init_alive_start+0x0/0x577
>Dec  5 06:54:28 kalessin kernel:  [<ffffffff8819b937>] :iwl4965:iwl4965_bg_init_alive_start+0x0/0x577
>Dec  5 06:54:28 kalessin kernel:  [<ffffffff81046cb6>] run_workqueue+0xdf/0x1df
>Dec  5 06:54:28 kalessin kernel:  [<ffffffff81047783>] worker_thread+0x0/0xe7
>Dec  5 06:54:28 kalessin kernel:  [<ffffffff81047860>] worker_thread+0xdd/0xe7
>Dec  5 06:54:28 kalessin kernel:  [<ffffffff8104ad0a>] autoremove_wake_function+0x0/0x2e
>Dec  5 06:54:28 kalessin kernel:  [<ffffffff8104abec>] kthread+0x47/0x73
>Dec  5 06:54:28 kalessin kernel:  [<ffffffff812769e8>] trace_hardirqs_on_thunk+0x35/0x3a
>Dec  5 06:54:28 kalessin kernel:  [<ffffffff8100cdd8>] child_rip+0xa/0x12
>Dec  5 06:54:28 kalessin kernel:  [<ffffffff8100c4ef>] restore_args+0x0/0x30
>Dec  5 06:54:28 kalessin kernel:  [<ffffffff811e90f8>] menu_reflect+0x0/0x75
>Dec  5 06:54:28 kalessin kernel:  [<ffffffff8104aa75>] kthreadd+0x115/0x13a
>Dec  5 06:54:28 kalessin kernel:  [<ffffffff8104aba5>] kthread+0x0/0x73
>Dec  5 06:54:28 kalessin kernel:  [<ffffffff8100cdce>] child_rip+0x0/0x12
>Dec  5 06:54:28 kalessin kernel: 
>Dec  5 06:54:28 kalessin kernel: iwl4965: Tunable channels: 13 802.11bg, 19 802.11a channels

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Attachments on bug 411581: 277661 | 280181