Re: XFS / writeback invoking soft lockup.

2013-12-14 Thread Dave Chinner
On Fri, Dec 13, 2013 at 11:22:28AM -0500, Dave Jones wrote: > On Fri, Dec 13, 2013 at 03:16:39AM -0800, Christoph Hellwig wrote: > > 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 wr

Re: XFS / writeback invoking soft lockup.

2013-12-13 Thread Dave Jones
On Fri, Dec 13, 2013 at 03:16:39AM -0800, Christoph Hellwig wrote: > 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 informati

Re: XFS / writeback invoking soft lockup.

2013-12-13 Thread Christoph Hellwig
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 cau

Re: XFS / writeback invoking soft lockup.

2013-12-13 Thread Dave Chinner
On Fri, Dec 13, 2013 at 02:14:07AM -0500, Dave Jones wrote: > I can hit this pretty reliably on one of my slower test machines. > (8gb ram, 1 slow sata disk) > > the machine is pretty responsive, and recovers after a while. > anything we can do to shut it up ? Actually, I think this indicates a p