linux-kernel - Re: v2.6.26-rc9: kernel BUG at kernel/sched.c:5858!

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Message-ID: <19f34abd0807102223s207800b3gc3ac97fb3fb0a222@mail.gmail.com>
Date:	Fri, 11 Jul 2008 07:23:15 +0200
From:	"Vegard Nossum" <vegard.nossum@...il.com>
To:	"Rafael J. Wysocki" <rjw@...k.pl>
Cc:	"Dmitry Adamushko" <dmitry.adamushko@...il.com>,
	"Pekka Enberg" <penberg@...helsinki.fi>,
	"Christoph Lameter" <clameter@....com>,
	Yanmin <yanmin_zhang@...ux.intel.com>,
	"Rusty Russell" <rusty@...tcorp.com.au>,
	"Ingo Molnar" <mingo@...e.hu>,
	"Peter Zijlstra" <a.p.zijlstra@...llo.nl>,
	"Dhaval Giani" <dhaval@...ux.vnet.ibm.com>,
	"Gautham R Shenoy" <ego@...ibm.com>,
	"Heiko Carstens" <heiko.carstens@...ibm.com>, miaox@...fujitsu.com,
	"Lai Jiangshan" <laijs@...fujitsu.com>,
	"Avi Kivity" <avi@...ranet.com>, linux-kernel@...r.kernel.org
Subject: Re: v2.6.26-rc9: kernel BUG at kernel/sched.c:5858!

On Thu, Jul 10, 2008 at 10:20 PM, Rafael J. Wysocki <rjw@...k.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
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