On Fri, 14 Jan 2011, Sergey Senozhatsky wrote:
> Hello,
>
> Acer Aspire 5741g
> 2.6.37-git11
>
> Got this trace today:
>
> [ 0.814609] ACPI: EC: Look up EC in DSDT
> [ 0.825556] BUG: spinlock bad magic on CPU#0, swapper/1
> [ 0.825639] lock: ffffffff8242fa90, .magic: 00000000, .owner: <none>/-1, .owner_cpu: 0
> [ 0.825741] Pid: 1, comm: swapper Not tainted 2.6.37-dbg-git11-07456-gdbc61c6-dirty #359
> [ 0.825841] Call Trace:
> [ 0.825923] [<ffffffff81247919>] ? spin_bug+0x9c/0xa3
> [ 0.826004] [<ffffffff812479e9>] ? do_raw_spin_lock+0x29/0x122
> [ 0.826093] [<ffffffff814867e5>] ? _raw_spin_lock_irqsave+0x56/0x60
> [ 0.826181] [<ffffffff81275e8a>] ? acpi_os_acquire_lock+0x9/0xb
> [ 0.826264] [<ffffffff81275e8a>] ? acpi_os_acquire_lock+0x9/0xb
> [ 0.826350] [<ffffffff81288fad>] ? acpi_ev_acquire_global_lock+0x10b/0x206
> [ 0.826438] [<ffffffff8129620c>] ? acpi_ex_acquire_mutex_object+0xa3/0x11d
> [ 0.826525] [<ffffffff812952e3>] ? acpi_ex_acquire_global_lock+0x61/0xa2
Does the failure go away if you revert this commit?
commit 9cd031441a4fd09273b7c2beb337d0b2683d104c
ACPI / ACPICA: Fix global lock acquisition
thanks,
Len Brown, Intel Open Source Technology Center
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