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From: Wang Shilong <wangsl.fnst@cn.fujitsu.com>
To: Marc MERLIN <marc@merlins.org>
Cc: linux-btrfs@vger.kernel.org
Subject: Re: 3.14.0-rc3 btrfs scrub is preventing my laptop from going to sleep
Date: Mon, 03 Mar 2014 11:17:51 +0800	[thread overview]
Message-ID: <5313F45F.9090709@cn.fujitsu.com> (raw)
In-Reply-To: <20140301152235.GA26926@merlins.org>

Hi Marc,

On 03/01/2014 11:22 PM, Marc MERLIN wrote:
> On Fri, Feb 28, 2014 at 09:09:37PM -0800, Marc MERLIN wrote:
>> On Fri, Feb 28, 2014 at 09:18:06AM +0800, Wang Shilong wrote:
>>> Could you run the following command when scrub is blocked, we can know more
>>> why scrub is blocked here.
>>>
>>> # echo w >  /proc/sysrq-trigger
>>> # dmesg
> Yes, there you go:
>
> (attached because it's too big for the list)
>
> http://marc.merlins.org/tmp/btrfs_nofreeze.txt
Could you please try the following patch, and let's see if it helps:

https://patchwork.kernel.org/patch/3680431/

This patch addressed a deadlock for device replace, but i guess scrub 
may also
trigger this problem if there are errors related to the disk.

BTW, is there  some errors related to scrub device, something like:

# btrfs device stat <device>

Thanks,
Wang
>
> Marc


  reply	other threads:[~2014-03-03  3:19 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-02-27 19:06 3.14.0-rc3 btrfs scrub is preventing my laptop from going to sleep Marc MERLIN
2014-02-27 23:30 ` Marc MERLIN
2014-02-28  1:18 ` Wang Shilong
     [not found]   ` <20140301050937.GD18300@merlins.org>
2014-03-01 15:22     ` Marc MERLIN
2014-03-03  3:17       ` Wang Shilong [this message]
2014-03-03  5:21         ` Marc MERLIN
2014-03-03  6:50           ` Wang Shilong
2014-03-03 15:10             ` Marc MERLIN
2014-03-03 16:56 ` Josef Bacik
2014-03-03 17:09   ` Josef Bacik
2014-03-03 22:05     ` Marc MERLIN
2014-03-03 22:18       ` Josef Bacik
2014-03-03 23:13         ` Marc MERLIN

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