From: Andrew Morton <akpm@digeo.com>
To: Dave McCracken <dmccr@us.ibm.com>
Cc: Linux Memory Management <linux-mm@kvack.org>
Subject: Re: [PATCH 2.5.48-mm1] Break COW page tables on mmap
Date: Fri, 22 Nov 2002 11:52:18 -0800 [thread overview]
Message-ID: <3DDE8AF2.A5CD2FE3@digeo.com> (raw)
In-Reply-To: <26960000.1037983225@baldur.austin.ibm.com>
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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prev parent reply other threads:[~2002-11-22 19:52 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-11-22 16:40 Dave McCracken
2002-11-22 19:52 ` Andrew Morton [this message]
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