linux-kernel - Re: [BUG] Page table corruption from commit 9542ada803198e6eba29d3289abb39ea82047b92.

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Message-ID: <20090122083149.GB7438@elte.hu>
Date:	Thu, 22 Jan 2009 09:31:49 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Jeff Mahoney <jeffm@...e.com>
Cc:	Suresh Siddha <suresh.b.siddha@...el.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Venkatesh Pallipadi <venkatesh.pallipadi@...el.com>,
	"H. Peter Anvin" <hpa@...or.com>,
	Thomas Gleixner <tglx@...utronix.de>
Subject: Re: [BUG] Page table corruption from commit
	9542ada803198e6eba29d3289abb39ea82047b92.


* Jeff Mahoney <jeffm@...e.com> wrote:

> 
> Hi Suresh -
> 
> I'm running into the following dump on one of my development nodes. I've 
> bisected it down to commit 9542ada803198e6eba29d3289abb39ea82047b92. The 
> SUSE hwinfo tool can reproduce this readily, at least on my system. I'd 
> be happy to try any test fixes.
> 
> Here's from the bisection run, 2.6.27-rc6.

Could you try the current -tip tree please?

  http://people.redhat.com/mingo/tip.git/README

There's a number of fixes in there that i think will fix your crash. In 
particular:

  9597134: x86: fix PTE corruption issue while mapping RAM using /dev/mem

	Ingo
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