From: Jean-Denis Girard <jd.girard@sysnux.pf>
To: linux-btrfs@vger.kernel.org
Subject: Re: Stuck btrfs-cleaner on 4.7 and 4.6
Date: Tue, 23 Aug 2016 07:17:16 -1000 [thread overview]
Message-ID: <npi0er$aqo$1@blaine.gmane.org> (raw)
In-Reply-To: <npds64$nu3$1@blaine.gmane.org>
Le 21/08/2016 à 17:39, Jean-Denis Girard a écrit :
> Hi list,
>
> After upgrading my Fedora 23 system from 4.4.12 to 4.7.2, I'm seeing one
> btrfs-cleaner process stuck at 100% CPU. The problem disappears when
> going back to 4.4 kernel (4.4.17), but is also present with Fedora
> kernel 4.6.6-200.fc23.
Just for the archives, I found that the problem was related to
fragmentation. Mounting without autodefrag on 4.7.2 avoided
btrfs-cleaner stuck at 100 % CPU. Then I did manually defragment all
Btrfs volumes, and could then remount with autodefrag. Every thing is ok
after ~12 hours uptime.
Thanks,
--
Jean-Denis Girard
SysNux Systèmes Linux en Polynésie française
https://www.sysnux.pf/ Tél: +689 40.50.10.40 / GSM: +689 87.797.527
prev parent reply other threads:[~2016-08-23 17:17 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-08-22 3:39 Stuck btrfs-cleaner on 4.7 and 4.6 Jean-Denis Girard
2016-08-23 17:17 ` Jean-Denis Girard [this message]
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