linux-kernel - Re: [3.10-rc6] WARNING: at fs/btrfs/inode.c:7961 btrfs_destroy

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Message-ID: <20130619180233.5430.5764@localhost.localdomain>
Date:	Wed, 19 Jun 2013 14:02:33 -0400
From:	Chris Mason <chris.mason@...ionio.com>
To:	Dave Jones <davej@...hat.com>
CC:	Linux Kernel <linux-kernel@...r.kernel.org>,
	<linux-btrfs@...r.kernel.org>
Subject: Re: [3.10-rc6] WARNING: at fs/btrfs/inode.c:7961
 btrfs_destroy_inode+0x265/0x2e0 [btrfs]()

Quoting Dave Jones (2013-06-17 14:58:10)
> On Mon, Jun 17, 2013 at 02:42:27PM -0400, Chris Mason wrote:
>  > Quoting Dave Jones (2013-06-17 14:20:06)
>  > > On Mon, Jun 17, 2013 at 01:39:42PM -0400, Chris Mason wrote:
>  > >  > Quoting Dave Jones (2013-06-17 09:49:55)
>  > >  > > Hit this while running this script in a loop..
>  > >  > > https://github.com/kernelslacker/io-tests/blob/master/setup.sh
>  > >  > > [34385.251507] ------------[ cut here ]------------
>  > >  > > [34385.254068] WARNING: at fs/btrfs/inode.c:7961 btrfs_destroy_inode+0x265/0x2e0 [btrfs]()
>  > >  > 
>  > >  > Thanks Dave, how long did you have to run the script to trigger it?
>  > >  > 
>  > >  > -chris
>  > > 
>  > > Judging by the timestamp, about 9 hours.  This is on a 3 disk (sata)
>  > > (oldish) quad opteron. Might repro faster on a more modern machine.
>  > 
>  > Exactly how did you run it?  I want to make sure I'm matching your
>  > config.
> 
> while [ 1 ];
> do
>   setup.sh
> done
> 
> You'll need to set DISK1 etc variables at the top of the script to point to
> at least 3 disks for it to scribble over.
> 
> you'll also need fsx and fsstress in /usr/local/bin.

I've tried with and without memory pressure, and let it run for about 30
hours.  So far, nothing here.  Have you seen this again?

-chris

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