On 1/23/18 10:54 AM, David Zarzycki wrote: > Hi Jens, > > The bug still reproduces with this change. How confident are we that > kernel objects are properly reference counted while they are > throttled? I would be surprised if it made a change, thanks for checking. Since you're not pulling devices out of your system, is really nothing that needs ref counting here. You don't have something running turning wbt on/off during the run, I assume? The whole thing is very odd. You do have lots of processes exiting with segfaults and similar. The only thing I can think of is the wait queue entry becoming invalid since it's on the stack, but I don't see how that can happen. We should exit the wait path normally and remove ourselves from the list. -- Jens Axboe
