Date: Fri, 26 Mar 2004 04:26:36 -0800
From: William Lee Irwin III <wli@holomorphy.com>
To: Andrea Arcangeli <andrea@suse.de>
Cc: Rajesh Venkatasubramanian <vrajesh@umich.edu>, akpm@osdl.org,
       torvalds@osdl.org, hugh@veritas.com, mbligh@aracnet.com,
       riel@redhat.com, mingo@elte.hu, linux-kernel@vger.kernel.org,
       linux-mm@kvack.org
Subject: Re: [RFC][PATCH 1/3] radix priority search tree - objrmap complexity fix
Message-ID: <20040326122636.GX791@holomorphy.com>
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	Andrea Arcangeli <andrea@suse.de>,
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	torvalds@osdl.org, hugh@veritas.com, mbligh@aracnet.com,
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On Thu, Mar 25, 2004 at 11:59:19PM +0100, Andrea Arcangeli wrote:
> btw, the truncate of hugetlbfs didn't serialize correctly against the
> do_no_page page faults, that's fixed too.

If a fault on hugetlb ever got as far as do_no_page() on ia32, the
kernel would oops on the bogus struct page it gets out of the bogus
pte.  I believe the way faults are handled in out-of-tree patches if by
calling hugetlb-specific fault handling stacks instead of
handle_mm_fault() if hugetlb vmas are found by arch code.


-- wli
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