From: Manfred Spraul <manfreds@colorfullife.com>
To: Rik van Riel <riel@nl.linux.org>
Cc: Patrick Mau <patrick@oscar.prima.de>,
Linux Kernel <linux-kernel@vger.rutgers.edu>,
Linux MM <linux-mm@kvack.org>
Subject: Re: 2.3.42: Strange memory corruption
Date: Wed, 02 Feb 2000 18:43:28 +0100 [thread overview]
Message-ID: <38986CC0.EA285023@colorfullife.com> (raw)
In-Reply-To: <Pine.LNX.4.10.10002021439170.462-100000@mirkwood.dummy.home>
Rik van Riel wrote:
>
> This looks a bit like there might be a race with the
> pagetable mapping or read()ing of the file. It would
> explain the three `suspicious' segfaults I've seen in
> the last few days...
>
The TLB flush code contains various races if IPI's are sent between
switch_mm() and switch_to(). I and Ingo have written patches that fix
these problems, and we are waiting for Linus' reply.
I've posted my patch and a longer description to linux-kernel last
Friday "[PATCH] new tlb flush code".
--
Manfred
--
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prev parent reply other threads:[~2000-02-02 17:43 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20000202051433.A298@tony.dorf.wh.uni-dortmund.de>
2000-02-02 13:41 ` Rik van Riel
2000-02-02 17:43 ` Manfred Spraul [this message]
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