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From: Peter Zijlstra <peterz@infradead.org>
To: Manfred Spraul <manfred@colorfullife.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
	cboulte@gmail.com, Nadia.Derbey@bull.net,
	linux-kernel@vger.kernel.org, Ingo Molnar <mingo@elte.hu>
Subject: Re: [PATCH] SYSVIPC - Fix the ipc structures initialization
Date: Thu, 13 Nov 2008 09:06:34 +0100	[thread overview]
Message-ID: <1226563594.7685.4394.camel@twins> (raw)
In-Reply-To: <491BC4B8.1050406@colorfullife.com>

On Thu, 2008-11-13 at 07:10 +0100, Manfred Spraul wrote:
> Andrew Morton wrote:
> > Time is starting to press on this one.  Is there something which we can
> > revert which would fix this bug?
> >   
> My previous analysis was bogus, let's start from scratch:
> 
> 1) the initial oops report:
> http://bugzilla.kernel.org/show_bug.cgi?id=11796#c0
> 
> - lockdep is enabled, the oops is somewhere in __lock_acquire
> - the instruction that oopses is

> For me, it reads like an uninitialized spinlock_t:

Yes, most (if not all) oopsen in either __lock_acquire or __lock_release
are stomped on spinlocks, either use after free or otherwise.

  reply	other threads:[~2008-11-13  8:07 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20081028145952.620752409@bull.net>
2008-10-28 14:59 ` Nadia.Derbey
2008-10-28 17:22   ` Manfred Spraul
2008-10-29  9:11   ` cboulte
2008-11-11 22:16     ` Andrew Morton
2008-11-12  6:41       ` Manfred Spraul
2008-11-13  6:10       ` Manfred Spraul
2008-11-13  8:06         ` Peter Zijlstra [this message]
2008-11-13 10:08         ` Nadia Derbey
2008-11-13 17:53           ` Manfred Spraul

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