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Message-ID: <4AE75283.4040404@qi-hardware.com>
Date:	Wed, 28 Oct 2009 04:05:23 +0800
From:	Xiangfu Liu <xiangfu@qi-hardware.com>
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To:	vinit dhatrak <vinit.dhatrak@gmail.com>
CC:	loody <miloody@gmail.com>, linux-mips <linux-mips@linux-mips.org>,
	Kernel Newbies <kernelnewbies@nl.linux.org>
Subject: Re: kernel panic about kernel unaligned access
References: <3a665c760910270627u784d43b8t2978731110c920a4@mail.gmail.com> <edf0f34e0910271003k66440e9did790c07a0a79919b@mail.gmail.com>
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vinit dhatrak wrote:
>> my questions are:
>> 1. what does "Not tainted" mean?
>> 2. I grep the kernel and I find the above message comes from do_ade in
>> unaligned.c, If I guess correctly.
>>    but from the call trace I cannot find out who call it.
>>    who and how kernel pass the information to do_ade?
>> 3. as far as i know, inode is the data structure we used to record file.
>> From what information in the inode I can find out the file name the
>> writeback_inodes try to write?
>> appreciate your help,
>> miloody
>>
> 
> I can answer your first question. Loading a proprietary or
> non-GPL-compatible module will 'taint' the running kernel—meaning that
> any problems or bugs experienced will be less likely to be
> investigated by the maintainers. See this "Tainted Kernel" document
> from Novell.
> http://www.novell.com/support/viewContent.do?externalId=3582750&sliceId=1
> 
> In your case, it seems that your kernel is not tainted by any external code.
> Also, what you see as call trace is actually just stack dump, not
> exactly a backtrace.

Hi I also got similar panic in my board (ben nanonote). the process is "Process ksoftirqd/0"
Q: how to get the backtrace?