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From: Vegard Nossum <vegard.nossum@gmail.com>
Date: Mon, 5 Dec 2016 22:33:14 +0100
Message-ID: <CAOMGZ=H6gAnMHkbLjHmSiCmcqvL7gK=_x0Aj-roErpdB5h8xxQ@mail.gmail.com>
Subject: Re: bio linked list corruption.
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Ingo Molnar <mingo@kernel.org>, Peter Zijlstra <peterz@infradead.org>,
        Dave Jones <davej@codemonkey.org.uk>, Chris Mason <clm@fb.com>,
        Jens Axboe <axboe@fb.com>, Andy Lutomirski <luto@amacapital.net>,
        Andy Lutomirski <luto@kernel.org>, Al Viro <viro@zeniv.linux.org.uk>,
        Josef Bacik <jbacik@fb.com>, David Sterba <dsterba@suse.com>,
        linux-btrfs <linux-btrfs@vger.kernel.org>,
        Linux Kernel <linux-kernel@vger.kernel.org>,
        Dave Chinner <david@fromorbit.com>
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Sender: linux-kernel-owner@vger.kernel.org
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On 5 December 2016 at 21:35, Linus Torvalds
<torvalds@linux-foundation.org> wrote:
> Note for Ingo and Peter: this patch has not been tested at all. But
> Vegard did test an earlier patch of mine that just verified that yes,
> the issue really was that wait queue entries remained on the wait
> queue head just as we were about to return and free it.

The second patch has been running for 1h+ without any problems of any
kind. I should typically have seen 2 crashes by now. I'll let it run
overnight to be sure.


Vegard