netdev - Re: RFC: Reproducible oops with lockdep on count_matching

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Message-ID: <84144f020711050423r7a1f0e55g36c8c5ad29bfc700@mail.gmail.com>
Date:	Mon, 5 Nov 2007 14:23:50 +0200
From:	"Pekka Enberg" <penberg@...helsinki.fi>
To:	"Peter Zijlstra" <peterz@...radead.org>
Cc:	"Michael Buesch" <mb@...sch.de>,
	"Luis R. Rodriguez" <mcgrof@...il.com>,
	"Michael Wu" <flamingice@...rmilk.net>,
	linux-wireless <linux-wireless@...r.kernel.org>,
	"John W. Linville" <linville@...driver.com>,
	"Ingo Molnar" <mingo@...hat.com>,
	"Johannes Berg" <johannes@...solutions.net>,
	linux-kernel@...r.kernel.org, "Michael Chan" <mchan@...adcom.com>,
	netdev@...r.kernel.org, "Christoph Lameter" <clameter@....com>
Subject: Re: RFC: Reproducible oops with lockdep on count_matching_names()

Hi Michael,

On Sat, 2007-11-03 at 21:06 +0100, Michael Buesch wrote:
> Who is responsible for slab btw?
> I mean, someone should be interested in getting this bug fixed. :)
> When using slab I see random corruptions. I think related to rmmod, but
> I'm not sure. I don't see this with slub.

Is CONFIG_DEBUG_SLAB enabled? Usually these kind of random corruptions
are caused by someone passing a bad pointer to kfree() or
kmem_cache_free().

                                  Pekka
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