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List: linuxppc-embedded
Subject: Re: [PATCH] Fix DEBUG_PAGEALLOC on 603/e300
From: Benjamin Herrenschmidt <benh () kernel ! crashing ! org>
Date: 2010-04-28 22:29:50
Message-ID: 1272493790.24542.109.camel () pasglop
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On Wed, 2010-04-28 at 14:15 -0500, Xianghua Xiao wrote:
> This change works me on a 834x(e300) platform, tested with lmbench and
> a production-ready application with 2.6.33.3.
But have you tested that DEBUG_PAGEALLOC actually works ? :-)
A way to do that is to
- get_free_pages a page
- read from it
- free it
- write to it
It should oops on the write, and I suspect that without my patch it
doesn't.
Cheers,
Ben.
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