Re: 2.3.42: Strange memory corruption

From: Manfred Spraul (manfreds@colorfullife.com)
Date: Wed Feb 02 2000 - 12:43:28 EST


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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