On Fri, Feb 24, 2017 at 01:22:42PM -0700, Jens Axboe wrote: > Bart, I pushed a fix here: > > http://git.kernel.dk/cgit/linux-block/commit/?h=for-linus&id=61febef40bfe8ab68259d8545257686e8a0d91d1 Yeah, this looks fine to me. It was broken on blk-mq before, but basically impossible to hit. I wonder if we should have a debug mode where we set requests to a known pattern after they are freed to catch these sort of bugs.