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From: Chris Mason <clm@fb.com>
To: David Arendt <admin@prnet.org>
Cc: <linux-btrfs@vger.kernel.org>
Subject: Re: btrfs send and kernel 3.17
Date: Tue, 7 Oct 2014 09:19:52 -0400	[thread overview]
Message-ID: <1412687992.2562.2@mail.thefacebook.com> (raw)
In-Reply-To: <DC336054-F307-4A86-AD6D-204E700DE9AA@prnet.org>



On Tue, Oct 7, 2014 at 1:25 AM, David Arendt <admin@prnet.org> wrote:
> I did a revert of this commit. After creating a snapshot, the 
> filesystem was no longer usable, even with kernel 3.16.3 (crashes 10 
> seconds after mount without error message) . Maybe there was some 
> previous damage that just appeared now. This evening, I will restore 
> from backup and report back.
> 
> On October 7, 2014 12:22:11 AM CEST, Chris Mason <clm@fb.com> wrote:
>> On Mon, Oct 6, 2014 at 4:51 PM, David Arendt <admin@prnet.org> wrote:
>>>  I just tried downgrading to 3.16.3 again. In 3.16.3 btrfs send is
>>>  working without any problem. Afterwards I upgraded again to 3.17 
>>> and
>>>  the
>>>  problem reappeared. So the problem seems to be kernel version 
>>> related.
>> 
>> [ backref errors during btrfs-send ]
>> 
>> Ok then, our list of suspects is pretty short.  Can you easily build
>> test kernels?
>> 
>> I'd like to try reverting this commit:
>> 
>> 51f395ad4058883e4273b02fdebe98072dbdc0d2

Oh no!  Reverting this definitely should not have caused corruptions, 
so I think the problem was already there.  Do you still have the 
filesystem image?

Please let us know if you're missing files off the backup, we'll help 
pull them out.

-chris


       reply	other threads:[~2014-10-07 13:20 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <DC336054-F307-4A86-AD6D-204E700DE9AA@prnet.org>
2014-10-07 13:19 ` Chris Mason [this message]
2014-10-07 20:45   ` btrfs send and kernel 3.17 David Arendt
2014-10-07 20:46     ` Chris Mason
2014-10-12 11:11       ` David Arendt
2014-10-12 15:24         ` john terragon
2014-10-12 21:35           ` David Arendt
2014-10-13  4:11             ` David Arendt
2014-10-13 12:40               ` john terragon
2014-10-13 15:40                 ` David Arendt
2014-10-13 17:22         ` Rich Freeman
2014-10-13 20:27           ` btrfs random filesystem corruption in " David Arendt
2014-10-13 20:42             ` Rich Freeman
2014-10-13 22:36               ` Duncan
2014-10-14 11:17                 ` admin
2014-10-14 21:35                   ` Duncan
2014-10-14 22:03                     ` Robert White
2014-10-14 22:55                       ` Duncan
2014-10-14 17:00                 ` David Arendt
2014-10-13 20:48             ` john terragon
2014-10-13 20:55               ` Rich Freeman
2014-10-13 20:57                 ` Rich Freeman
2014-10-13 21:22                 ` john terragon
2014-10-13 21:25                   ` David Arendt
2014-10-13 21:49                     ` Duncan
2014-10-13 23:18                   ` Rich Freeman
2014-10-14  1:30                     ` john terragon
2014-10-13 21:22               ` David Arendt
2014-10-06 18:50 btrfs send and " David Arendt
2014-10-06 19:06 ` Chris Mason
2014-10-06 19:48   ` David Arendt
2014-10-06 20:51   ` David Arendt
2014-10-06 22:22     ` Chris Mason

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