From: Anton Blanchard <anton@samba.org>
To: Andrew Morton <akpm@osdl.org>
Cc: Hugh Dickins <hugh@veritas.com>,
torvalds@osdl.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] mm: poison struct page for ptlock
Date: Mon, 7 Nov 2005 04:59:43 +1100 [thread overview]
Message-ID: <20051106175943.GJ12353@krispykreme> (raw)
In-Reply-To: <20051106112838.0d524f65.akpm@osdl.org>
> This patch makes the ppc64 crash. See
> http://www.zip.com.au/~akpm/linux/patches/stuff/dsc02976.jpg
>
> I don't know what the access address was (ia32 nicely tells you), but if
> it's `DAR' then we have LIST_POISON1. Which would indicate that the slab
> page which backs the mm_struct itself is getting freed-up-pte-page
> treatment, which is deeply screwed up.
Yep on a 300 exception the DAR is the faulting address.
We should spit out a line like x86 does at the start of the oops to make
it clear.
Anton
next prev parent reply other threads:[~2005-11-06 19:37 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-11-03 19:26 Hugh Dickins
2005-11-05 5:32 ` Andrew Morton
2005-11-05 6:40 ` Hugh Dickins
2005-11-05 7:17 ` Andrew Morton
2005-11-06 19:28 ` Andrew Morton
2005-11-06 17:59 ` Anton Blanchard [this message]
2005-11-06 19:34 ` Olof Johansson
2005-11-06 22:39 ` Paul Mackerras
2005-11-06 22:57 ` Andrew Morton
2005-11-06 22:58 ` Hugh Dickins
2005-11-06 23:13 ` Andrew Morton
2005-11-06 23:36 ` David S. Miller
2005-11-06 23:48 ` Hugh Dickins
2005-11-07 0:00 ` Andrew Morton
2005-11-07 0:15 ` Hugh Dickins
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