Messages in this thread | | | Date | Thu, 24 Apr 2008 01:00:34 +0200 | From | "Zdenek Kabelac" <> | Subject | BUG: bad unlock balance detected iwl3945/1438 is trying to release lock |
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Hello
This stacktrace is with git 8876b8ed5fc9e996918cac4a553b8bc40d5605d7 (compiled few minutes ago)
(Unsure how it's related to other bugs around iwl driver)
Happens when wifi network is enabled/disabled
Zdenek
ACPI: PCI interrupt for device 0000:03:00.0 disabled ACPI: PCI Interrupt 0000:03:00.0[A] -> GSI 17 (level, low) -> IRQ 17 PM: Writing back config space on device 0000:03:00.0 at offset 1 (was 100102, writing 100106)
===================================== [ BUG: bad unlock balance detected! ] ------------------------------------- iwl3945/1438 is trying to release lock (&priv->mutex) at: [<ffffffff812ed439>] mutex_unlock+0x9/0x10 but there are no more locks to release!
other info that might help us debug this: 2 locks held by iwl3945/1438: #0: ((name)){--..}, at: [<ffffffff8105107a>] run_workqueue+0xaa/0x230 #1: (&ifsta->work){--..}, at: [<ffffffff8105107a>] run_workqueue+0xaa/0x230
stack backtrace: Pid: 1438, comm: iwl3945 Not tainted 2.6.25 #61
Call Trace: [<ffffffff810669d5>] print_unlock_inbalance_bug+0x105/0x130 [<ffffffff81013458>] ? native_sched_clock+0x78/0x80 [<ffffffff81065434>] ? __lock_acquire+0x364/0x11d0 [<ffffffff81065434>] ? __lock_acquire+0x364/0x11d0 [<ffffffff81066b18>] lock_release_non_nested+0x118/0x1a0 [<ffffffff812ed439>] ? mutex_unlock+0x9/0x10 [<ffffffff81066c66>] lock_release+0xc6/0x230 [<ffffffff812ed336>] __mutex_unlock_slowpath+0x86/0x180 [<ffffffff812ed439>] mutex_unlock+0x9/0x10 [<ffffffffa0189d34>] :iwl3945:iwl3945_mac_config_interface+0x44/0x420 [<ffffffff81062aca>] ? get_lock_stats+0x2a/0x70 [<ffffffffa014ac46>] :mac80211:__ieee80211_if_config+0x86/0xe0 [<ffffffffa014b67a>] :mac80211:ieee80211_if_config+0x3a/0x70 [<ffffffffa0151f52>] :mac80211:ieee80211_sta_set_bssid+0xb2/0xd0 [<ffffffffa01577be>] :mac80211:ieee80211_sta_work+0x158e/0x19b0 [<ffffffff81062aca>] ? get_lock_stats+0x2a/0x70 [<ffffffff81062aca>] ? get_lock_stats+0x2a/0x70 [<ffffffff81062b1e>] ? put_lock_stats+0xe/0x30 [<ffffffff81059311>] ? hrtimer_start+0xe1/0x1a0 [<ffffffff81013458>] ? native_sched_clock+0x78/0x80 [<ffffffff81065434>] ? __lock_acquire+0x364/0x11d0 [<ffffffff81062b1e>] ? put_lock_stats+0xe/0x30 [<ffffffff8105107a>] ? run_workqueue+0xaa/0x230 [<ffffffff8105107a>] ? run_workqueue+0xaa/0x230 [<ffffffffa0156230>] ? :mac80211:ieee80211_sta_work+0x0/0x19b0 [<ffffffff810510c6>] run_workqueue+0xf6/0x230 [<ffffffff810512a7>] worker_thread+0xa7/0x120 [<ffffffff81055810>] ? autoremove_wake_function+0x0/0x40 [<ffffffff81051200>] ? worker_thread+0x0/0x120 [<ffffffff81055479>] kthread+0x49/0x90 [<ffffffff8100d548>] child_rip+0xa/0x12 [<ffffffff8100cc33>] ? restore_args+0x0/0x30 [<ffffffff81055430>] ? kthread+0x0/0x90 [<ffffffff8100d53e>] ? child_rip+0x0/0x12
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