Created attachment 1077877 [details] screenshot after watchdog triggered Description of problem: I'm getting a frequent lockup on an f22 system. The filesystem is dead and nothing is logged, but I captured the attached with watchdog enabled. There is a partial trace into xfs/vm before that. Version-Release number of selected component (if applicable): kernel-4.1.6-201.fc22.x86_64 How reproducible: unsure. Seems to occur under high fs read load. I'm trying to get a crash dump with 4.1.7-200 and will post more details.
*********** MASS BUG UPDATE ************** We apologize for the inconvenience. There is a large number of bugs to go through and several of them have gone stale. Due to this, we are doing a mass bug update across all of the Fedora 22 kernel bugs. Fedora 22 has now been rebased to 4.2.3-200.fc22. Please test this kernel update (or newer) and let us know if you issue has been resolved or if it is still present with the newer kernel. If you have moved on to Fedora 23, and are still experiencing this issue, please change the version to Fedora 23. If you experience different issues, please open a new bug report for those.
*********** MASS BUG UPDATE ************** This bug is being closed with INSUFFICIENT_DATA as there has not been a response in over 4 weeks. If you are still experiencing this issue, please reopen and attach the relevant data from the latest kernel you are running and any data that might have been requested previously.