File system remain unresponsive until the system is rebooted.

[Dave Chinner]

On Tue, Jan 31, 2012 at 10:34:10AM +0530, Supratik Goswami wrote:
> We are using Amazon EC2 instances.
> 
> ubuntu at ip-10-0-0-10:~$ uname -aLinux ip-10-0-0-10 2.6.32-318-ec2
> #38-Ubuntu SMP Thu Sep 1 18:09:30 UTC 2011 x86_64 GNU/Linux

The growfs hang problem was fixed in 2.6.34.

On earlier kernels, if you do a grow while the system is under
allocation load it could deadlock. growing on a mostly idle
filesystem was generally OK, but under heavy load problems could
occur. This hang is what xfstests 104 exercises...

Cheers,

Dave.
-- 
Dave Chinner
david at fromorbit.com