linux-kernel - Re: btrfs extents related oops.

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Message-ID: <20140805015758.GA9831@redhat.com>
Date:	Mon, 4 Aug 2014 21:57:58 -0400
From:	Dave Jones <davej@...hat.com>
To:	Chris Mason <clm@...com>,
	Linux Kernel <linux-kernel@...r.kernel.org>
Subject: Re: btrfs extents related oops.

On Mon, Aug 04, 2014 at 09:28:45PM -0400, Dave Jones wrote:
 > Possibly related to some changes I've been making to my fuzz tester today
 > to operate on the same file from multiple threads.
 > This was on v3.16-829-g98959948a7ba, but probably exists on earlier trees too
 > given the lack of btrfs specific commits so far this merge window.

reproducer:

trinity -q -l off -c lseek -c write

(Things also go very, very bad if you then try to umount that
 partition - endless oopses, too mangled to parse).

	Dave

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