Attachment 308355 Details for Bug 449969 – OOPS file I was able to grab when it went into stage 2

OOPS file I was able to grab when it went into stage 2

OOPS (text/plain), 3.60 KB, created by Andy Lindeberg on 2008-06-04 15:12:26 UTC

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Creator: Andy Lindeberg

Created: 2008-06-04 15:12:26 UTC

Size: 3.60 KB

patch

obsolete

>=======================================================
>[ INFO: possible circular locking dependency detected ]
>2.6.26-0.46.rc4.git2.fc10.x86_64 #1
>-------------------------------------------------------
>loader/534 is trying to acquire lock:
> (events){--..}, at: [<ffffffff81047c6b>] flush_workqueue+0x0/0xa6
>
>but task is already holding lock:
> (rtnl_mutex){--..}, at: [<ffffffff812338a8>] rtnl_lock+0x12/0x14
>
>which lock already depends on the new lock.
>
>
>the existing dependency chain (in reverse order) is:
>
>-> #2 (rtnl_mutex){--..}:
>       [<ffffffff81058364>] __lock_acquire+0xbcf/0xd5f
>       [<ffffffff81058552>] lock_acquire+0x5e/0x78
>       [<ffffffff812ad7cc>] mutex_lock_nested+0xf7/0x295
>       [<ffffffff812338a8>] rtnl_lock+0x12/0x14
>       [<ffffffff81234830>] linkwatch_event+0x9/0x27
>       [<ffffffff810471cc>] run_workqueue+0xfc/0x203
>       [<ffffffff810473b3>] worker_thread+0xe0/0xf1
>       [<ffffffff8104aa17>] kthread+0x49/0x76
>       [<ffffffff8100cec8>] child_rip+0xa/0x12
>       [<ffffffffffffffff>] 0xffffffffffffffff
>
>-> #1 ((linkwatch_work).work){--..}:
>       [<ffffffff81058364>] __lock_acquire+0xbcf/0xd5f
>       [<ffffffff81058552>] lock_acquire+0x5e/0x78
>       [<ffffffff810471c6>] run_workqueue+0xf6/0x203
>       [<ffffffff810473b3>] worker_thread+0xe0/0xf1
>       [<ffffffff8104aa17>] kthread+0x49/0x76
>       [<ffffffff8100cec8>] child_rip+0xa/0x12
>       [<ffffffffffffffff>] 0xffffffffffffffff
>
>-> #0 (events){--..}:
>       [<ffffffff81058267>] __lock_acquire+0xad2/0xd5f
>       [<ffffffff81058552>] lock_acquire+0x5e/0x78
>       [<ffffffff81047cc6>] flush_workqueue+0x5b/0xa6
>       [<ffffffff81047d21>] flush_scheduled_work+0x10/0x12
>       [<ffffffffa0272e10>] tulip_down+0x2c/0x28e [tulip]
>       [<ffffffffa0273aea>] tulip_close+0x32/0x183 [tulip]
>       [<ffffffff8122b290>] dev_close+0x88/0xa9
>       [<ffffffff8122af27>] dev_change_flags+0xab/0x16e
>       [<ffffffff81271fc8>] devinet_ioctl+0x278/0x628
>       [<ffffffff81272f7f>] inet_ioctl+0x92/0xaa
>       [<ffffffff8121d9a0>] sock_ioctl+0x1ed/0x216
>       [<ffffffff810be136>] vfs_ioctl+0x2a/0x78
>       [<ffffffff810be3d5>] do_vfs_ioctl+0x251/0x26b
>       [<ffffffff810be444>] sys_ioctl+0x55/0x79
>       [<ffffffff8100bf8b>] system_call_after_swapgs+0x7b/0x80
>       [<ffffffffffffffff>] 0xffffffffffffffff
>
>other info that might help us debug this:
>
>1 lock held by loader/534:
> #0:  (rtnl_mutex){--..}, at: [<ffffffff812338a8>] rtnl_lock+0x12/0x14
>
>stack backtrace:
>Pid: 534, comm: loader Not tainted 2.6.26-0.46.rc4.git2.fc10.x86_64 #1
>
>Call Trace:
> [<ffffffff810574fa>] print_circular_bug_tail+0x70/0x7b
> [<ffffffff81057312>] ? print_circular_bug_entry+0x48/0x4f
> [<ffffffff81058267>] __lock_acquire+0xad2/0xd5f
> [<ffffffff81056fe6>] ? mark_held_locks+0x5c/0x77
> [<ffffffff812af211>] ? _spin_unlock_irq+0x2b/0x30
> [<ffffffff81011dab>] ? native_sched_clock+0x50/0x6d
> [<ffffffff81058552>] lock_acquire+0x5e/0x78
> [<ffffffff81047c6b>] ? flush_workqueue+0x0/0xa6
> [<ffffffff81047cc6>] flush_workqueue+0x5b/0xa6
> [<ffffffff81047d21>] flush_scheduled_work+0x10/0x12
> [<ffffffffa0272e10>] :tulip:tulip_down+0x2c/0x28e
> [<ffffffff81057177>] ? trace_hardirqs_on+0xf1/0x115
> [<ffffffffa0273aea>] :tulip:tulip_close+0x32/0x183
> [<ffffffff8122b290>] dev_close+0x88/0xa9
> [<ffffffff8122af27>] dev_change_flags+0xab/0x16e
> [<ffffffff81271fc8>] devinet_ioctl+0x278/0x628
> [<ffffffff81272f7f>] inet_ioctl+0x92/0xaa
> [<ffffffff8121d9a0>] sock_ioctl+0x1ed/0x216
> [<ffffffff810be136>] vfs_ioctl+0x2a/0x78
> [<ffffffff810be3d5>] do_vfs_ioctl+0x251/0x26b
> [<ffffffff810be444>] sys_ioctl+0x55/0x79
> [<ffffffff8122c56f>] ? dev_ioctl+0x383/0x636
> [<ffffffff8100bf8b>] system_call_after_swapgs+0x7b/0x80

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Attachments on bug 449969: 308355