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From: Andi Kleen <andi@firstfloor.org>
To: Stefan Becker <Stefan.Becker@nokia.com>
Cc: ext Andi Kleen <andi@firstfloor.org>,
	ext Michal Piotrowski <michal.k.k.piotrowski@gmail.com>,
	linux-kernel@vger.kernel.org
Subject: Re: [pre-2.6.23 REGRESSION] 2.6.23-rc3-git1 crash/stuck on VIA CN700 system
Date: Wed, 5 Sep 2007 18:37:24 +0200	[thread overview]
Message-ID: <20070905163724.GC31880@one.firstfloor.org> (raw)
In-Reply-To: <46DECDC9.9050407@nokia.com>

> flags		: fpu vme de pse tsc msr pae mce cx8 apic mtrr pge cmov pat 
> clflush acpi mmx fxsr sse sse2 tm up pni est tm2 rng rng_en ace ace_en 

Hmm, I can't really see anything wrong. This means the original
version of the patch you found had a few problems, but they
were all fixed later and only applied with CONFIG_PARAVIRT enabled anyways.

As a stab in the dark since the CPU has clflush can you please 
comment out the  

  if (cpu_has_clflush)
                asm("clflush (%0) " :: "r" (addr) : "memory");

statement in arch/i386/kernel/alternative.c and see if it makes a difference?
Perhaps your CPU doesn't like that (it seems to have clflush) 

If that doesn't help it might be needed to revert the patch
hunk by hunk to see which text_poke() invocation caused it.

-Andi

  reply	other threads:[~2007-09-05 16:37 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-08-20 17:37 [pre-2.6.23 REGRESSION] 2.6.23-rc3-git1 crash/stuck on VIA CN700 system Stefan Becker
2007-08-28  5:15 ` Stefan Becker
2007-09-03  5:59   ` Stefan Becker
2007-09-03 16:57     ` Randy Dunlap
2007-09-03 23:02 ` Andi Kleen
2007-09-04 18:26   ` Stefan Becker
2007-09-05 10:25     ` Andi Kleen
2007-09-05 15:39       ` Stefan Becker
2007-09-05 16:37         ` Andi Kleen [this message]
2007-09-05 19:24           ` Stefan Becker
2007-09-06  5:36             ` Andi Kleen
2007-09-06 14:19               ` Stefan Becker
2007-09-12 16:59               ` Stefan Becker
2007-09-06 10:41             ` Dave Jones
2007-09-06 10:44               ` Stefan Becker

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