On Thu, Feb 24, 2011 at 10:20:28AM +0000, A. James Lewis
wrote:> I''ve been running BTRFS for a while testing out various stuff, and
I''ve
> found it to be quite stable (although reading this list makes me realize
> how much activity there really is).. I just hit my first bump in the
> road, and I wondered if someone could give me a hint how I can gather
> enough information to be useful here.
>
> Basically, the filesystem I''m running is a 2 disk stripe, with
mirrored
> metadata.. I have default subvolume set, and I''m using 2
subvolumes. I
> have created a few snapshots of those subvolumes by mounting with -o
> subvolid=0 and creating snapshots of the mounted subvolumes.
>
> Recently (I think it started when I updated from .38rc1 to .38rc5 but
> that could be coincidental)... when I mount subvolid=0, if I do a
''ls''
> of that mount point, the filesystem hangs, and the system becomes
> unusable. Otherwise mounting and using the subvolumes is not affected.
> At one point I got a Segfault from ls, but I''ve not been able to
repeat
> that.
>
> Any suggestions would be interesting... I tried updating to rc6, but as
> expected, (since there didn''t seem to be much in the way of BTRFS
> changes in that release) not much difference.
>
Do a sysrq+w when it hangs, that will tell us what the box is doing. Thanks,
Josef
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