linux-kernel - Re: Oops with strace

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Message-ID: <87k5ifgvse.fsf@basil.nowhere.org>
Date:	Wed, 30 Apr 2008 18:19:29 +0200
From:	Andi Kleen <andi@...stfloor.org>
To:	Eric Sesterhenn <snakebyte@....de>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: Oops with strace_test

Eric Sesterhenn <snakebyte@....de> writes:

> hi,
>
> running the strace_test from ltp 20080229 (ltp.sf.net) gives me
> two different oopses, so far i was not able to pinpoint to a specific
> testcase (propably because the strace uses the rng to decided what fails
> and what not) one oops is in iret_exc()

It is actually somewhere in the woods afterwards, iret_exc is just 
the last symbol before it.


>, the other in __copy_from_user_ll()
> The oopses dont happen with 2.6.24 so this appears to be a regression, i am starting
> a git-bisect, but this might take some time

I would try reverting the last two changesets of arch/x86/lib/usercopy_32.c

-Andi

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