From: Dave Jones <davej@redhat.com>
To: Andrea Arcangeli <aarcange@redhat.com>
Cc: linux-mm@kvack.org, Andrew Morton <akpm@linux-foundation.org>,
Johannes Weiner <hannes@cmpxchg.org>,
Mel Gorman <mgorman@suse.de>, Hugh Dickins <hughd@google.com>,
Larry Woodman <lwoodman@redhat.com>,
Rik van Riel <riel@redhat.com>,
Ulrich Obergfell <uobergfe@redhat.com>
Subject: Re: [PATCH] mm: thp: fix pmd_bad() triggering in code paths holding mmap_sem read mode
Date: Thu, 15 Mar 2012 13:16:28 -0400 [thread overview]
Message-ID: <20120315171627.GB22255@redhat.com> (raw)
In-Reply-To: <1331822671-21508-1-git-send-email-aarcange@redhat.com>
On Thu, Mar 15, 2012 at 03:44:31PM +0100, Andrea Arcangeli wrote:
> At some point prior to the panic, a "bad pmd ..." message similar to the
> following is logged on the console:
>
> mm/memory.c:145: bad pmd ffff8800376e1f98(80000000314000e7).
Hmm, I wonder if this could explain some of the many bad page state bug
reports we've seen in Fedora recently. (See my recent mail to linux-mm)
> Reported-by: Ulrich Obergfell <uobergfe@redhat.com>
> Signed-off-by: Andrea Arcangeli <aarcange@redhat.com>
Should probably go to stable too ? How far back does this bug go ?
Dave
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next prev parent reply other threads:[~2012-03-15 17:16 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-03-15 14:44 Andrea Arcangeli
2012-03-15 16:01 ` Rik van Riel
2012-03-15 16:13 ` Larry Woodman
2012-03-15 17:16 ` Dave Jones [this message]
2012-03-15 17:41 ` Andrea Arcangeli
2012-03-15 22:30 ` Andrew Morton
2012-03-15 18:08 ` Johannes Weiner
2012-03-15 22:45 ` Andrew Morton
2012-03-15 23:15 ` Andrea Arcangeli
2012-03-15 23:27 ` Andrew Morton
2012-03-16 8:05 ` Naoya Horiguchi
2012-03-16 11:54 ` Andrea Arcangeli
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