Re: kernel panic when reboot

From: Wanlong Gao
Date: Fri Dec 14 2012 - 08:20:42 EST


On 12/14/2012 07:02 PM, Borislav Petkov wrote:
> On Fri, Dec 14, 2012 at 05:29:09PM +0800, Wanlong Gao wrote:
>> Hi,
>>
>> I hit the kernel panic when reboot the system today, just system reboot can cause kernel panic.
>>
>> $ git describe
>> v3.7-7784-g7313264
>>
>> The config file is attached.
>> And the crash screen is uploaded here http://www.tiikoni.com/tis/view/?id=e187047
>
> AFAICT, it looks like list corruption in the mutex_lock path when
> trying to grab the watchdog->lock, when we're coming down from
> mei_watchdog_unregister().
>
> Is it reproducible?

It's panicked every time I reboot the system.

Thanks,
Wanlong Gao

>
> Btw, this is pre -rc1 kernel so I wouldn't take any issues it has too
> seriously before Linus hasn't done -rc1 at least. Testing arbitrary
> points in the history is known to lead to all kinds of issues which
> aren't reproducible later in my experience.
>
> Adding a MEI guy to CC just in case.
>
> HTH.
>

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