XFS / writeback invoking soft lockup.

Fri Dec 13 05:16:39 CST 2013

On Fri, Dec 13, 2013 at 09:48:53PM +1100, Dave Chinner wrote:
> All I can say is that there doesn't look to be any obvious signs
> that this is a XFS or writeback problem fom the stack trace, and
> without more information or a reproducable test case I'm not going
> to be able to understand the cause.
> 
> Is the problem reproducable, or is it just a one-off?

If it's reproducable it would be good to enable the xfs_writepage
tracepoint and get a trace-cmd log of it.