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Date: Fri, 22 Nov 2002 11:52:18 -0800
From: Andrew Morton <akpm@digeo.com>
MIME-Version: 1.0
Subject: Re: [PATCH 2.5.48-mm1] Break COW page tables on mmap
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To: Dave McCracken <dmccr@us.ibm.com>
Cc: Linux Memory Management <linux-mm@kvack.org>
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Dave McCracken wrote:
> 
> I found a fairly large hole in my unsharing logic.  Pte page COW behavior
> breaks down when new objects are mapped.  This patch makes sure there
> aren't any COW pte pages in the range of a new mapping at mmap time.
> 
> This should fix the KDE problem.  It fixed it on the test machine I've been
> using.
> 

Fixed it for me too.  Congratulations.
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