From: Chris Mason <clm@fb.com>
To: <dsterba@suse.cz>, 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 13:19:20 -0400 [thread overview]
Message-ID: <55805A98.9020609@fb.com> (raw)
In-Reply-To: <20150616171443.GS6761@suse.cz>
On 06/16/2015 01:14 PM, David Sterba wrote:
> 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.
>
That one is in my integration-4.2 branch if you want to give it a shot.
-chris
next prev parent reply other threads:[~2015-06-16 17:19 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
2015-06-16 17:19 ` Chris Mason [this message]
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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