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From: Ilari Stenroth <ilari.stenroth@gmail.com>
To: linux-btrfs@vger.kernel.org
Subject: Re: kernel BUG at fs/btrfs/ctree.c:2964!
Date: Fri, 08 Nov 2013 01:35:07 +0200	[thread overview]
Message-ID: <l5h830$qog$1@ger.gmane.org> (raw)
In-Reply-To: <20131102013433.GF16855@localhost.localdomain>

On 2.11.2013 3.34, Josef Bacik wrote:
> 
> On this box can you run
> 
> gdb btrfs.ko
> list *(__btrfs_drop_extents+0x59d)
> 
> I want to know where exactly this is coming from so I can start trying to figure
> out how it's happening.  Thanks,

Hi,

I've got the same issue. Btrfs FS crashes on my box running Linux 3.11.7.

It seems that the crash happens when I start collectd daemon. Maybe a
corrupted RRD file somewhere.
I don't have time for debugging this issue further so I'm going to
re-format this box to ext4. Btrfs is statically compiled in kernel so
I'm unable to gdb btrfs.ko. No debug info in kernel image. Sorry not
being able to help.

/dev/sda2 on / type btrfs (rw,noatime,nodiratime,ssd,space_cache)

Mount options used to have also autodefrag but I removed it while hoping
it would make the box more stable.

# btrfs fi show
Label: 'root'  uuid: 87943e37-a134-4b8d-bcf2-989334d23b75
	Total devices 2 FS bytes used 6.22GB
	devid    2 size 10.00GB used 9.98GB path /dev/sdb2
	devid    1 size 10.00GB used 10.00GB path /dev/sda2


# btrfs fi df /
Data, RAID1: total=8.97GB, used=5.99GB
Data: total=8.00MB, used=0.00
System, RAID1: total=8.00MB, used=4.00KB
System: total=4.00MB, used=0.00
Metadata, RAID1: total=1.00GB, used=234.92MB
Metadata: total=8.00MB, used=0.00

A screen grab from the console after the crash happened:
http://s3-eu-west-1.amazonaws.com/ilari.stenroth/btrfs-crash-201311/Screen+Shot+2013-11-07+at+9.19.27.png

--
Ilari Stenroth



      reply	other threads:[~2013-11-07 23:40 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <9213759.7842.1374769206286.JavaMail.root@mail.placs.net>
2013-07-25 16:32 ` Fwd: Cloning a Btrfs partition BJ Quinn
2013-07-29  8:21   ` Jan Schmidt
2013-07-29 15:32     ` BJ Quinn
2013-07-30 10:28       ` Jan Schmidt
2013-08-19 20:45         ` BJ Quinn
2013-08-20  9:59           ` Xavier Bassery
2013-08-20 15:43             ` BJ Quinn
2013-11-02  0:28               ` kernel BUG at fs/btrfs/ctree.c:2964! BJ Quinn
2013-11-02  1:34                 ` Josef Bacik
2013-11-07 23:35                   ` Ilari Stenroth [this message]

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