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Message-ID: <19f34abd0807102223s207800b3gc3ac97fb3fb0a222@mail.gmail.com>
Date: Fri, 11 Jul 2008 07:23:15 +0200
From: "Vegard Nossum" <vegard.nossum@gmail.com>
To: "Rafael J. Wysocki" <rjw@sisk.pl>
Subject: Re: v2.6.26-rc9: kernel BUG at kernel/sched.c:5858!
Cc: "Dmitry Adamushko" <dmitry.adamushko@gmail.com>,
       "Pekka Enberg" <penberg@cs.helsinki.fi>,
       "Christoph Lameter" <clameter@sgi.com>,
       Yanmin <yanmin_zhang@linux.intel.com>,
       "Rusty Russell" <rusty@rustcorp.com.au>, "Ingo Molnar" <mingo@elte.hu>,
       "Peter Zijlstra" <a.p.zijlstra@chello.nl>,
       "Dhaval Giani" <dhaval@linux.vnet.ibm.com>,
       "Gautham R Shenoy" <ego@in.ibm.com>,
       "Heiko Carstens" <heiko.carstens@de.ibm.com>, miaox@cn.fujitsu.com,
       "Lai Jiangshan" <laijs@cn.fujitsu.com>, "Avi Kivity" <avi@qumranet.com>,
       linux-kernel@vger.kernel.org
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On Thu, Jul 10, 2008 at 10:20 PM, Rafael J. Wysocki <rjw@sisk.pl> wrote:
>> This looks like it has very much to do with CPU hotplug/unplug. Is
>> there a race between SLUB/hotplug since the CPU slab is used after it
>> has been freed?
>
> I wonder if this is related to the fix at:
> http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=70ff05554f91a1edda1f11684da1dbde09e2feea

Hi,

I thought it might as well, but in fact it happened regardless of this patch.


Vegard

-- 
"The animistic metaphor of the bug that maliciously sneaked in while
the programmer was not looking is intellectually dishonest as it
disguises that the error is the programmer's own creation."
	-- E. W. Dijkstra, EWD1036