From: corbet@lwn.net (Jonathan Corbet)
To: Mikael Pettersson <mikpe@csd.uu.se>
Cc: linux-kernel@vger.kernel.org, ak@suse.de
Subject: Re: [BUG] 2.6.6-rc2-bk5 mm/slab.c change broke x86-64 SMP
Date: Fri, 30 Apr 2004 12:21:38 -0600 [thread overview]
Message-ID: <20040430182138.8758.qmail@lwn.net> (raw)
In-Reply-To: Your message of "Fri, 30 Apr 2004 18:11:46 +0200." <200404301611.i3UGBkdK026345@harpo.it.uu.se>
> The change to mm/slab.c between 2.6.6-rc2-bk4 and -bk5
> broke x86-64 SMP. The symptoms are general protection
> faults in __switch_to shortly after init starts, and
> then the machine is dead. (Can't be more specific, my
> box can't log early boot oopses.)
>
> I'm only seeing this with x86-64 SMP; x86-64 UP and i386
> SMP on the same machine (Athlon64 UP) have no problems.
FWIW, this sure looks a lot like the boot-time crash I'm seeing; I get the
same __switch_to oopses once init starts. *But* I'm running a UP,
no-preempt kernel. And I get it with -rc1 as well. Might reverting the
later slab change be concealing a different problem?
jon
next prev parent reply other threads:[~2004-04-30 18:23 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-04-30 16:11 Mikael Pettersson
2004-04-30 18:21 ` Jonathan Corbet [this message]
2004-04-30 18:27 ` Andrew Morton
2004-04-30 19:29 ` Jonathan Corbet
2004-04-30 20:31 ` Andrew Morton
2004-04-30 19:33 ` R. J. Wysocki
2004-04-30 20:24 ` Andrew Morton
2004-05-01 1:48 ` Andi Kleen
2004-05-01 2:01 ` Andrew Morton
2004-05-01 2:02 ` Andi Kleen
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