linux-kernel - Re: kernel BUG at fs/btrfs/delayed-inode.c:1466!

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Date:	Fri, 9 Mar 2012 16:32:48 +0100
From:	Jacek Luczak <difrost.kernel@...il.com>
To:	dave@...os.cz, Jacek Luczak <difrost.kernel@...il.com>,
	Liu Bo <liubo2009@...fujitsu.com>,
	linux-btrfs <linux-btrfs@...r.kernel.org>,
	LKML <linux-kernel@...r.kernel.org>, josef@...hat.com
Subject: Re: kernel BUG at fs/btrfs/delayed-inode.c:1466!

2012/3/9 David Sterba <dave@...os.cz>:
> On Fri, Mar 09, 2012 at 03:33:24PM +0100, Jacek Luczak wrote:
>> > Those two issues go inline. After a longer while of WARN_ON the BUG_ON
>> > hit again.
>>
>> One more observation. Host is running builds from CI system. After
>> BUG_ON pop up all builds take 50% more time to complete.
>
> After a BUG_ON the system is in an inconsistent state and will
> misbehave.
>
>> Also I see that current load average stall at value of 7 even if host
>> is completely idle.
>
> That's probably because some process is stuck in a D-state after the
> crash.
>

Now when I've tried to bring CI back I had to clean the broken builds
from BUG_ON run. The svn up fails:

open("/btrfs/project1/.svn/lock", O_WRONLY|O_CREAT|O_EXCL, 0666) = -1
ENOSPC (No space left on device)

-Jacek
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