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Bug#700075: linux-image-3.2.0-4-amd64: Btrfs kernel bug after removing devices



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On Fri, 2013-02-08 at 10:16 +0100, Ondřej Kunc wrote:
> Package: src:linux
> Version: 3.2.35-2
> Severity: important
> 
> Dear Maintainer,
> 
> I was just playing with btrfs in our sandbox and I'm facing one problem.
> I have created btrfs filesystem on 10 LVs 1,5GB each, just for testing 
> purpose.
> I was trying to add/remove volumes, create files on it (about 1,5M of 1k 
> files).
> Everything worked fine, I tried some balancing, scrubbing and when I 
> tried to remove device from filesystem which was very full, it took very 
> long time and after it refused to remove device. I tried that once more 
> and then I killed btrfs remove command, it did nothing, but now I'm not 
> able to stop btrfs device add ..., it is in D state and hanged. 
> Filesystem is usable, data are visible, but it is not possible to 
> add/remove devices. And in dmesg i have that bug which I attach.
> 
> If you want, I can do some tests on this system as it is our sandbox.
> 
> System was yesterday installed as squeeze and then upgraded to wheezy, 
> then reboot and then btrfs plays.
[...]

Can you test whether this is fixed in Linux 3.7, available in the
experimental suite?

Ben.

-- 
Ben Hutchings
I'm always amazed by the number of people who take up solipsism because
they heard someone else explain it. - E*Borg on alt.fan.pratchett

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