On Fri, 2017-04-14 at 00:40 -0700, Omar Sandoval wrote: > On Thu, Apr 13, 2017 at 11:05:32PM +0000, Bart Van Assche wrote: > > On Thu, 2017-04-13 at 16:01 -0700, Omar Sandoval wrote: > > > Looking at this, I think we have similar issues with most of the other > > > debugfs files. Should we move the debugfs cleanup earlier? > > > > That's a good question. However, while I was debugging it was very > > convenient > > to be able to access the queue state after it had reached the "dead" state. > > Performing the cleanup earlier would be an alternative solution but would > > make debugging a bit harder ... > > What useful information were you getting out of debugfs once the queue > was already dead? Wasn't the interesting stuff freed at that point?
Hello Omar, I'm currently chasing a stall of dm-rq + dm-mpath that occurs after the queues below it have reached the "dead" state. I will look for another way to obtain the information I need such that we can remove the block layer queue debugfs information before these queues reach the "dead" state. Bart.
