linux-kernel - Re: Problem with global_flush_tlb() on i386 (x86

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Date:	Wed, 20 Jun 2007 11:01:20 +0200
From:	Andi Kleen <ak@...e.de>
To:	Mathieu Desnoyers <compudj@...stal.dyndns.org>
Cc:	linux-kernel@...r.kernel.org, akpm@...ux-foundation.org,
	mingo@...hat.com, mbligh@...gle.com
Subject: Re: Problem with global_flush_tlb() on i386 (x86_64? too) in 2.6.22-rc4-mm2

On Tuesday 19 June 2007 22:01:36 Mathieu Desnoyers wrote:
> Looking more closely into the code to find the cause of the
> change_page_addr()/global_flush_tlb() inconsistency, I see where the
> problem could be:

Yes it's a known problem. I have a hack queued for .22 and there
are proposed patches for .23 too.

ftp://ftp.firstfloor.org/pub/ak/x86_64/late-merge/patches/cpa-flush

-ANdi
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