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Date: Tue, 15 Jan 2008 23:35:35 +0100
From: Ingo Molnar <mingo@elte.hu>
To: Jeremy Fitzhardinge <jeremy@goop.org>
Cc: LKML <linux-kernel@vger.kernel.org>, Andi Kleen <ak@suse.de>,
       Glauber de Oliveira Costa <glommer@gmail.com>,
       Jan Beulich <jbeulich@novell.com>
Subject: Re: [PATCH 0 of 4] x86: some more patches
Message-ID: <20080115223534.GA20484@elte.hu>
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* Jeremy Fitzhardinge <jeremy@goop.org> wrote:

> Hi Ingo,
> 
> More patches:
> 
> - rearrange paravirt.h to remove duplicate code, and to make it easy
>   to drop in 4th level pagetable functions.
> - fix a warning I got from clear_bit in pgtable.h
> - fix up some bogosity in pte_modify
> - mask NX from pte_pfn
> 
> The last two may help with the problem that Andi's seeing.

unfortunately they dont solve it:

 [   92.042586] Freeing unused kernel memory: 328k freed
 [   92.091838] khelper used greatest stack depth: 6244 bytes left
 [   92.281738] init[1]: segfault at 00000004 ip 49471cbb sp bff8dbb0 error 4
 [   92.288761] init[1]: segfault at 00000004 ip 49471cbb sp bff8dbb0 error 4
 [   92.295763] init[1]: segfault at 00000004 ip 49471cbb sp bff8dbb0 error 4
 [...]
 [   97.312484] printk: 611046 messages suppressed.

32-bit, PAE and RAM above 4GB seems to be enough to trigger that bug.

	Ingo