Hi Dave, On Wed, Mar 5, 2014 at 3:35 PM, Dave Chinner <david@xxxxxxxxxxxxx> wrote: > On Wed, Mar 05, 2014 at 03:08:16PM -0800, Austin Schuh wrote: >> Howdy, >> >> I'm running a config_preempt_rt patched version of the 3.10.11 kernel, >> and I'm seeing a couple lockups and crashes which I think are related >> to XFS. > > I think they ar emore likely related to RT issues.... > That very well may be true. > Your usb device has disconnected and gone down the device > removal/invalidate partition route. and it's trying to flush the > device, which is stuck on IO completion which is stuck waiting for > the device error handling to error them out. > > So, this is a block device problem error handling problem caused by > device unplug getting stuck because it's decided to ask the > filesystem to complete operations that can't be completed until the > device error handling progress far enough to error out the IOs that > the filesystem is waiting for completion on. > > Cheers, > > Dave. > -- > Dave Chinner > david@xxxxxxxxxxxxx I unplugged the USB device _after_ the rest of the system started locking up to see if that might unstick things. Austin _______________________________________________ xfs mailing list xfs@xxxxxxxxxxx http://oss.sgi.com/mailman/listinfo/xfs