linux-kernel - Re: help with diagnosing kernel oops in __mutex_lock

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Date:	Thu, 1 Nov 2012 17:23:48 -0700
From:	Stan Hu <stanhu@...il.com>
To:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: help with diagnosing kernel oops in __mutex_lock_slowpath

Unfortunately, with this board I am using, it would be a significant
effort for me to get 3.6 or 3.7 running.  Do you have any suggestions
of what I should look for in the 3.2 kernel?

For now, I've worked around it by enabling the panic=10 and
panic_on_oops kernel=1 options to reboot when this happens.  The
system seems to come up fine after another try or two.

On Thu, Nov 1, 2012 at 5:14 PM, Greg Kroah-Hartman
<gregkh@...uxfoundation.org> wrote:
> On Thu, Nov 01, 2012 at 03:02:45PM -0700, Stan Hu wrote:
>> Hello,
>>
>> I'm getting this kernel oops sporadically with a custom Cortex-A8 ARM
>> board with a Linux 3.2.28 kernel.  The system is booting off an SD
>> card; interestingly this failure doesn't seem to happen when I boot
>> from NAND flash.   I would say 1 out 10 times it fails with a similar
>> backtrace.  Does anyone have any clue why this might be happening?
>
> Does this also happen on the 3.6 kernel, or 3.7-rc3?
>
> thanks,
>
> greg k-h
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