Message-ID: <5342BCB1.9010109@oracle.com>
Date: Mon, 07 Apr 2014 10:56:49 -0400
From: Sasha Levin <sasha.levin@oracle.com>
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To: "Kirill A. Shutemov" <kirill@shutemov.name>,
        Hugh Dickins <hughd@google.com>
CC: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>,
        Andrew Morton <akpm@linux-foundation.org>,
        David Rientjes <rientjes@google.com>,
        Andrea Arcangeli <aarcange@redhat.com>,
        "H. Peter Anvin" <hpa@zytor.com>, Mel Gorman <mgorman@suse.de>,
        Dave Jones <davej@redhat.com>, linux-mm <linux-mm@kvack.org>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: mm: BUG in do_huge_pmd_wp_page
References: <51559150.3040407@oracle.com> <515D882E.6040001@oracle.com> <533F09F0.1050206@oracle.com> <20140407144835.GA17774@node.dhcp.inet.fi>
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Sender: linux-kernel-owner@vger.kernel.org

On 04/07/2014 10:48 AM, Kirill A. Shutemov wrote:
> On Fri, Apr 04, 2014 at 03:37:20PM -0400, Sasha Levin wrote:
>> > And another ping exactly a year later :)
> I think we could "fix" this false positive with the patch below
> (untested), but it's ugly and doesn't add much value.

I could carry that patch myself and not complain about it
any more if there's no intent to produce a "real" fix, but
I doubt that that's really the path we want to take in the
long run.

We'll end up with a bunch of broken paths when enabling
debug, making any sort of debugging slow and useless, which
isn't a desirable result to say the least.


Thanks,
Sasha
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