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In-Reply-To: <1494931835-3813-1-git-send-email-mpe@ellerman.id.au>
To: Michael Ellerman <mpe@ellerman.id.au>, linuxppc-dev@ozlabs.org
From: Michael Ellerman <patch-notifications@ellerman.id.au>
Cc: rashmicy@gmail.com
Subject: Re: powerpc/mm: Fix crash in page table dump with huge pages
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Date: Wed, 17 May 2017 19:34:38 +1000 (AEST)
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On Tue, 2017-05-16 at 10:50:35 UTC, Michael Ellerman wrote:
> The page table dump code doesn't know about huge pages, so currently
> it crashes (or walks random memory, usually leading to a crash), if it
> finds a huge page. On Book3S we only see huge pages in the Linux page
> tables when we're using the P9 Radix MMU.
> 
> Teaching the code to properly handle huge pages is a bit more involved,
> so for now just prevent the crash.
> 
> Cc: stable@vger.kernel.org # v4.10+
> Fixes: 8eb07b187000 ("powerpc/mm: Dump linux pagetables")
> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

Applied to powerpc fixes.

https://git.kernel.org/powerpc/c/bfb9956ab4d8242f4594b5f4bee534

cheers