Try one more time to get wrapping turned off. Sorry!
2.6.32-rc5-git1 #1
-------------------------------------------------------
events/0/9 is trying to acquire lock:
(&rfkill->sync_work){+.+.+.}, at: [<c1039083>]
__cancel_work_timer+0x81/0x181
but task is already holding lock:
(&ehotk->hotplug_lock){+.+.+.}, at: [<f8587708>]
eeepc_rfkill_hotplug+0x45/0xda [eeepc_laptop]
which lock already depends on the new lock.
the existing dependency chain (in reverse order) is:
-> #2 (&ehotk->hotplug_lock){+.+.+.}:
[<c104ac60>] __lock_acquire+0x9fb/0xb6d
[<c104ae2e>] lock_acquire+0x5c/0x73
[<c129e223>] __mutex_lock_common+0x39/0x375
[<c129e5ee>] mutex_lock_nested+0x2b/0x33
[<f8587708>] eeepc_rfkill_hotplug+0x45/0xda [eeepc_laptop]
[<f858787c>] eeepc_rfkill_set+0x1d/0x2d [eeepc_laptop]
[<f83f4a9f>] rfkill_set_block+0x6f/0xb1 [rfkill]
[<f83f4b78>] __rfkill_switch_all+0x2e/0x51 [rfkill]
[<f83f4c12>] rfkill_switch_all+0x33/0x41 [rfkill]
[<f83f51b0>] rfkill_op_handler+0xf0/0x11e [rfkill]
[<c1038965>] worker_thread+0x161/0x233
[<c103b883>] kthread+0x5f/0x64
[<c1003613>] kernel_thread_helper+0x7/0x10
-> #1 (rfkill_global_mutex){+.+.+.}:
[<c104ac60>] __lock_acquire+0x9fb/0xb6d
[<c104ae2e>] lock_acquire+0x5c/0x73
[<c129e223>] __mutex_lock_common+0x39/0x375
[<c129e5ee>] mutex_lock_nested+0x2b/0x33
[<f83f4c36>] rfkill_sync_work+0x16/0x35 [rfkill]
[<c1038965>] worker_thread+0x161/0x233
[<c103b883>] kthread+0x5f/0x64
[<c1003613>] kernel_thread_helper+0x7/0x10
-> #0 (&rfkill->sync_work){+.+.+.}:
[<c104ab62>] __lock_acquire+0x8fd/0xb6d
[<c104ae2e>] lock_acquire+0x5c/0x73
[<c10390ab>] __cancel_work_timer+0xa9/0x181
[<c103919a>] cancel_work_sync+0xa/0xc
[<f83f4e55>] rfkill_unregister+0x37/0x93 [rfkill]
[<f84d95bc>] wiphy_unregister+0x21/0x14c [cfg80211]
[<f885a0ed>] ieee80211_unregister_hw+0xa7/0xc5 [mac80211]
[<f89805d9>] ath_detach+0x73/0x11b [ath9k]
[<f898068c>] ath_cleanup+0xb/0x35 [ath9k]
[<f8987305>] ath_pci_remove+0x15/0x17 [ath9k]
[<c112c7a7>] pci_device_remove+0x19/0x39
[<c11c5076>] __device_release_driver+0x59/0x9d
[<c11c5157>] device_release_driver+0x18/0x23
[<c11c470b>] bus_remove_device+0x71/0x7e
[<c11c3425>] device_del+0xf0/0x131
[<c11c3471>] device_unregister+0xb/0x15
[<c1128d11>] pci_stop_bus_device+0x45/0x61
[<c1128d91>] pci_remove_bus_device+0xd/0x90
[<f8587780>] eeepc_rfkill_hotplug+0xbd/0xda [eeepc_laptop]
[<f858787c>] eeepc_rfkill_set+0x1d/0x2d [eeepc_laptop]
[<f83f4a9f>] rfkill_set_block+0x6f/0xb1 [rfkill]
[<f83f4b78>] __rfkill_switch_all+0x2e/0x51 [rfkill]
[<f83f4c12>] rfkill_switch_all+0x33/0x41 [rfkill]
[<f83f51b0>] rfkill_op_handler+0xf0/0x11e [rfkill]
[<c1038965>] worker_thread+0x161/0x233
[<c103b883>] kthread+0x5f/0x64
[<c1003613>] kernel_thread_helper+0x7/0x10
other info that might help us debug this:
4 locks held by events/0/9:
#0: (events){+.+.+.}, at: [<c1038923>] worker_thread+0x11f/0x233
#1: ((rfkill_op_work).work){+.+.+.}, at: [<c1038923>]
worker_thread+0x11f/0x233
#2: (rfkill_global_mutex){+.+.+.}, at: [<f83f4bfd>]
rfkill_switch_all+0x1e/0x41 [rfkill]
#3: (&ehotk->hotplug_lock){+.+.+.}, at: [<f8587708>]
eeepc_rfkill_hotplug+0x45/0xda [eeepc_laptop]
stack backtrace:
Pid: 9, comm: events/0 Not tainted 2.6.32-rc5-git1 #1
Call Trace:
[<c129d1e0>] ? printk+0xf/0x17
[<c1049f29>] print_circular_bug+0x8a/0x96
[<c104ab62>] __lock_acquire+0x8fd/0xb6d
[<c104ae2e>] lock_acquire+0x5c/0x73
[<c1039083>] ? __cancel_work_timer+0x81/0x181
[<c10390ab>] __cancel_work_timer+0xa9/0x181
[<c1039083>] ? __cancel_work_timer+0x81/0x181
[<c104974c>] ? mark_lock+0x1e/0x1e2
[<c1049953>] ? mark_held_locks+0x43/0x5b
[<c108b0d1>] ? kfree+0xbf/0xcb
[<c103919a>] cancel_work_sync+0xa/0xc
[<f83f4e55>] rfkill_unregister+0x37/0x93 [rfkill]
[<f84d95bc>] wiphy_unregister+0x21/0x14c [cfg80211]
[<c1038d10>] ? destroy_workqueue+0x72/0x77
[<f885a0ed>] ieee80211_unregister_hw+0xa7/0xc5 [mac80211]
[<f89805d9>] ath_detach+0x73/0x11b [ath9k]
[<f898068c>] ath_cleanup+0xb/0x35 [ath9k]
[<f8987305>] ath_pci_remove+0x15/0x17 [ath9k]
[<c112c7a7>] pci_device_remove+0x19/0x39
[<c11c5076>] __device_release_driver+0x59/0x9d
[<c11c5157>] device_release_driver+0x18/0x23
[<c11c470b>] bus_remove_device+0x71/0x7e
[<c11c3425>] device_del+0xf0/0x131
[<c11c3471>] device_unregister+0xb/0x15
[<c1128d11>] pci_stop_bus_device+0x45/0x61
[<c1128d91>] pci_remove_bus_device+0xd/0x90
[<f8587780>] eeepc_rfkill_hotplug+0xbd/0xda [eeepc_laptop]
[<f858787c>] eeepc_rfkill_set+0x1d/0x2d [eeepc_laptop]
[<f83f4a9f>] rfkill_set_block+0x6f/0xb1 [rfkill]
[<f83f4b78>] __rfkill_switch_all+0x2e/0x51 [rfkill]
[<f83f4c12>] rfkill_switch_all+0x33/0x41 [rfkill]
[<f83f51b0>] rfkill_op_handler+0xf0/0x11e [rfkill]
[<c1038965>] worker_thread+0x161/0x233
[<c1038923>] ? worker_thread+0x11f/0x233
[<f83f50c0>] ? rfkill_op_handler+0x0/0x11e [rfkill]
[<c103ba7d>] ? autoremove_wake_function+0x0/0x2f
[<c1038804>] ? worker_thread+0x0/0x233
[<c103b883>] kthread+0x5f/0x64
[<c103b824>] ? kthread+0x0/0x64
[<c1003613>] kernel_thread_helper+0x7/0x10
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