linux-kernel - Re: 2.6.18-1.2689.fc6PAE: oops in ext3_clear

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Message-ID: <4521F5DE.7070302@sandeen.net>
Date:	Tue, 03 Oct 2006 00:32:14 -0500
From:	Eric Sandeen <sandeen@...deen.net>
To:	Andrew Morton <akpm@...l.org>
CC:	Jeremy Fitzhardinge <jeremy@...p.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: 2.6.18-1.2689.fc6PAE: oops in ext3_clear_inode+0x52/0x8b

Andrew Morton wrote:
> On Thu, 28 Sep 2006 13:42:26 -0700
> Jeremy Fitzhardinge <jeremy@...p.org> wrote:
> 
>> I just filed this in the Redhat bugzilla, since its from the FC6 distro 
>> kernel.  But since its fairly close to current kernel.org kernels, I 
>> thought it might be relevent.
>>
>> The bug is https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=208488
>>
>> Unfortunately this isn't a very useful report since it was a once-off, 
>> and there's a P-tainting module in there.  But if anyone sees anything 
>> else like this, it's interesting.
>>
>> The oops is:
>>
>> BUG: unable to handle kernel paging request at virtual address 756e6547
> 
> 756e6547 -> uneG.   Matches "GenuineIntel".
> 
> That'll get written into a temporary page by the /proc/cpuinfo handler, so
> it might just be a use-uninitialised.

But strangely enough, it's the second report we've seen with this exact 
backtrace, and the same "Genu" ascii string where the i_default_acl should be.

Both boxes had been through a suspend-to-ram recently, just in case that might 
matter.

Seems like something more than random chance...

-Eric
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