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Date: Wed, 19 Aug 2009 21:29:56 +0200
From: Giangiacomo Mariotti <gg.mariotti@...il.com>
To: linux-kernel@...r.kernel.org
Subject: [BUG] 2.6.30.5: inconsistent lock state
I just got this message from dmesg(notice that I was just rebooting
after my system got totally freezed and I had to manually reboot by
powering-off, but I don't know if the 2 things are related):
[ 910.030251] Freeing unused kernel memory: 2616k freed
[ 910.031662] Write protecting the kernel read-only data: 6572k
[ 910.145394] irq 18: nobody cared (try booting with the "irqpoll" option)
[ 910.145545] Pid: 0, comm: swapper Not tainted 2.6.30.5-my001 #1
[ 910.145690] Call Trace:
[ 910.145828] <IRQ> [<ffffffff802b1da7>] __report_bad_irq+0x45/0xab
[ 910.146007] [<ffffffff802b1f2f>] note_interrupt+0x122/0x19f
[ 910.146152] [<ffffffff802b27a2>] handle_fasteoi_irq+0xb4/0xf4
[ 910.146300] [<ffffffff80229a48>] handle_irq+0x95/0xb5
[ 910.146445] [<ffffffff80676db2>] ? trace_hardirqs_off_thunk+0x3a/0x3c
[ 910.146593] [<ffffffff80228fe6>] do_IRQ+0x6a/0xe9
[ 910.146736] [<ffffffff80227893>] ret_from_intr+0x0/0xf
[ 910.146879] <EOI> [<ffffffff8022f07c>] ? mwait_idle+0xa3/0xd2
[ 910.147055] [<ffffffff8022f073>] ? mwait_idle+0x9a/0xd2
[ 910.147200] [<ffffffff80225e7d>] ? enter_idle+0x33/0x49
[ 910.147344] [<ffffffff80225f42>] ? cpu_idle+0xaf/0xf2
[ 910.147490] [<ffffffff8066f9ca>] ? start_secondary+0x197/0x1b2
[ 910.147635] handlers:
[ 910.147772] [<ffffffff805274ef>] (usb_hcd_irq+0x0/0xac)
[ 910.147971] Disabling IRQ #18
[ 910.247005]
[ 910.247005] =================================
[ 910.247282] [ INFO: inconsistent lock state ]
[ 910.247423] 2.6.30.5-my001 #1
[ 910.247562] ---------------------------------
[ 910.247703] inconsistent {IN-HARDIRQ-W} -> {HARDIRQ-ON-W} usage.
[ 910.247849] swapper/0 [HC0[0]:SC1[1]:HE1:SE0] takes:
[ 910.247992] (&irq_desc_lock_class){?.-...}, at:
[<ffffffff802b1b7a>] try_one_irq+0x32/0x132
[ 910.248331] {IN-HARDIRQ-W} state was registered at:
[ 910.248474] [<ffffffffffffffff>] 0xffffffffffffffff
[ 910.248645] irq event stamp: 244386
[ 910.248785] hardirqs last enabled at (244386):
[<ffffffff806772f3>] _spin_unlock_irq+0x3a/0x56
[ 910.249070] hardirqs last disabled at (244385):
[<ffffffff806776b0>] _spin_lock_irq+0x23/0x8f
[ 910.249353] softirqs last enabled at (152262):
[<ffffffff8026d59a>] __do_softirq+0x193/0x1c1
[ 910.249637] softirqs last disabled at (244379):
[<ffffffff8022803c>] call_softirq+0x1c/0x82
[ 910.249920]
[ 910.249920] other info that might help us debug this:
[ 910.250197] 1 lock held by swapper/0:
[ 910.250336] #0: (kernel/irq/spurious.c:21){+.-...}, at:
[<ffffffff8027268e>] run_timer_softirq+0x15c/0x294
[ 910.250703]
[ 910.250704] stack backtrace:
[ 910.250976] Pid: 0, comm: swapper Not tainted 2.6.30.5-my001 #1
[ 910.251120] Call Trace:
[ 910.251257] <IRQ> [<ffffffff80292765>] valid_state+0x187/0x1ae
[ 910.251433] [<ffffffff80293205>] ? check_usage_backwards+0x0/0x76
[ 910.251579] [<ffffffff802928ae>] mark_lock+0x122/0x255
[ 910.251723] [<ffffffff80293be8>] __lock_acquire+0x2c2/0xc17
[ 910.251868] [<ffffffff802b1b7a>] ? try_one_irq+0x32/0x132
[ 910.252013] [<ffffffff802b1b7a>] ? try_one_irq+0x32/0x132
[ 910.252158] [<ffffffff80294609>] lock_acquire+0xcc/0x104
[ 910.252302] [<ffffffff802b1b7a>] ? try_one_irq+0x32/0x132
[ 910.252448] [<ffffffff806775b6>] _spin_lock+0x40/0x89
[ 910.252592] [<ffffffff802b1b7a>] ? try_one_irq+0x32/0x132
[ 910.252736] [<ffffffff802b1b7a>] try_one_irq+0x32/0x132
[ 910.252881] [<ffffffff8027268e>] ? run_timer_softirq+0x15c/0x294
[ 910.253027] [<ffffffff802b1ce7>] ? poll_spurious_irqs+0x0/0x49
[ 910.253173] [<ffffffff802b1cbb>] poll_all_shared_irqs+0x41/0x6d
[ 910.253319] [<ffffffff802b1d03>] poll_spurious_irqs+0x1c/0x49
[ 910.253464] [<ffffffff8027271f>] run_timer_softirq+0x1ed/0x294
[ 910.253610] [<ffffffff8027268e>] ? run_timer_softirq+0x15c/0x294
[ 910.253756] [<ffffffff80289655>] ? clocksource_read+0x1d/0x33
[ 910.253902] [<ffffffff8026d4ce>] __do_softirq+0xc7/0x1c1
[ 910.254048] [<ffffffff8022803c>] call_softirq+0x1c/0x82
[ 910.254193] [<ffffffff802297bc>] do_softirq+0x48/0xb0
[ 910.254337] [<ffffffff8026cffa>] irq_exit+0x61/0xb7
[ 910.254482] [<ffffffff8023d7cc>] smp_apic_timer_interrupt+0x94/0xba
[ 910.254629] [<ffffffff80227a53>] apic_timer_interrupt+0x13/0x20
[ 910.254773] <EOI> [<ffffffff8022f07c>] ? mwait_idle+0xa3/0xd2
[ 910.254948] [<ffffffff8022f073>] ? mwait_idle+0x9a/0xd2
[ 910.255093] [<ffffffff80225e7d>] ? enter_idle+0x33/0x49
[ 910.255237] [<ffffffff80225f42>] ? cpu_idle+0xaf/0xf2
[ 910.255382] [<ffffffff8066f9ca>] ? start_secondary+0x197/0x1b2
[ 910.278258] usb usb1: uevent
If you need more info, just ask.
Giangiacomo
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