From: David Sterba <dsterba@suse.cz>
To: Chris Mason <clm@fb.com>
Cc: Dave Jones <davej@codemonkey.org.uk>,
jbacik@fb.com, Linux Kernel <linux-kernel@vger.kernel.org>
Subject: Re: [4.1-rc7] btrfs related VM_BUG_ON in filemap.c
Date: Tue, 16 Jun 2015 19:14:43 +0200 [thread overview]
Message-ID: <20150616171443.GS6761@suse.cz> (raw)
In-Reply-To: <55787743.4070308@fb.com>
On Wed, Jun 10, 2015 at 01:43:31PM -0400, Chris Mason wrote:
> On 06/10/2015 09:40 AM, Dave Jones wrote:
> > Found this on serial console this morning. The machine had rebooted itself shortly
> > afterwards (surprising, given I don't have panic-on-oops or similar set).
> >
>
> We had one other report of this a few months ago. Josef and I read
> through all of this and decided it was impossible, so someone else must
> be holding on to that page and unlocking it.
>
> (that someone else could easily be btrfs, just not in this code path)
https://patchwork.kernel.org/patch/6478941/ looks like the fix, bug
symptoms match the "keywords", I haven't inspected it closely.
next prev parent reply other threads:[~2015-06-16 17:14 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-06-10 13:40 [4.1-rc7] btrfs related VM_BUG_ON in filemap.c Dave Jones
2015-06-10 17:43 ` Chris Mason
2015-06-10 18:42 ` Dave Jones
2015-06-16 17:14 ` David Sterba [this message]
2015-06-16 17:19 ` Chris Mason
2015-06-17 13:35 ` Dave Jones
2015-06-30 19:20 ` Dave Jones
2015-06-30 19:23 ` Josef Bacik
2015-06-30 19:28 ` Dave Jones
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