I had been experiencing a similar bug that we reported to Red Hat after being stumped. It started occurring out of the middle of nowhere but it would happen onl

I had been experiencing a similar bug that we reported to Red Hat after being stumped. It started occurring out of the middle of nowhere but it would happen only in .01% of our jobs we launched into a batch farm. We launch about 15k batch jobs a day, and it was enough to be a problem. Before a job was launched, a daemon pre-staged some job contents (logfiles, env, etc..) and started writing out to a job summary file. Then the job would start, continue writing to one of the files, which would become corrupted. It ended up being this bug: https://www.spinics.net/lists/linux-nfs/msg41335.html https://www.spinics.net/lists/linux-nfs/msg41335.html