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From: Roman Mamedov <rm@romanrm.ru>
To: Gabriel de Perthuis <g2p.code@gmail.com>
Cc: linux-btrfs@vger.kernel.org
Subject: Re: Permanent uncancellable balance
Date: Sat, 2 Mar 2013 17:12:37 +0600	[thread overview]
Message-ID: <20130302171237.00afdc78@natsu> (raw)
In-Reply-To: <kgsj1h$oo1$1@ger.gmane.org>

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On Sat, 2 Mar 2013 10:07:45 +0000 (UTC)
Gabriel de Perthuis <g2p.code@gmail.com> wrote:

> Hello,
> I have a filesystem that has become unusable because of a balance I can't 
> stop. It is very close to full, and the balance is preventing me from 
> growing it.
> 
> It was started like this:
> sudo btrfs filesystem balance start -v -musage=60 -dusage=60 /srv/backups
> 
> It has been stuck at 0% across reboots and kernel upgrades (currently on 
> 3.8.1), and cancelling it had no effect:
> 
> Balance on '/srv/backups' is running
> 0 out of about 5 chunks balanced (95 considered), 100% left
> 
> According to atop it is writing but not reading anything.
> Unmounting never terminates, so does remounting ro, the only way to 
> temporarilly kill it is to reboot. SIGKILL has no effect either. Is there 
> *any* way I can get rid of it?
> 
> --
> To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html

Mount with the "skip_balance" option
https://btrfs.wiki.kernel.org/index.php/Mount_options
then you can issue "btrfs fi balance cancel" and it will succeed.

-- 
With respect,
Roman

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  reply	other threads:[~2013-03-02 11:12 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-03-02 10:07 Permanent uncancellable balance Gabriel de Perthuis
2013-03-02 11:12 ` Roman Mamedov [this message]
2013-03-02 12:45   ` Gabriel de Perthuis

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