Re: FS hang when creating snapshots on a UFS SU+J setup

On Wed, Jan 11, 2012 at 10:30:39AM +0100, Yamagi Burmeister wrote:
> Hello,
> I've done some tests to verify that the problem only occures when SU+J
> is used, but not SU without J. In fact, I did run the following two
> loops on different TTYs in parallel:

I also confirm this using a similar technique. The panic is only seen
with SU+J and not with just SU. 

I did a similar cp -R /root /var/tmp ; rm -rf /var/tmp/root and the
panic was trigger with dump -0L...
I got the panic (again in less than a minute of issuing the dump command)
-- I also got the "giving up on dirty" kind of message. 

I took a picture of the screen -- I am not sure if that helps!

http://picpaste.com/11012012519-LF0sWlpw.jpg