On Thu, Feb 22, 2018 at 09:10:23PM +0000, Bart Van Assche wrote: > Hello Omar, > > I/O hangs if I run the following command on top of kernel v4.16-rc2 + the > ib_srpt patch that adds RDMA/CM support: > > srp-test/run_tests -c -d -r 10 -t 02-mq -e kyber > > This does not happen with the deadline scheduler nor without a scheduler. > This test passed a few months ago. I have attached the output of the following > command to this e-mail: > > (cd /sys/kernel/debug/block && grep -r .) | grep -v /poll_stat > > Can you have a look? The following 2 patch fixes one IO hang on kyber in my test on USB, could you test it and see if your case can be fixed? https://marc.info/?l=linux-block&m=151940022831994&w=2 BTW, from your attached log, looks it belongs to domain token leak issue too, so it should have been addressed by above patches. Thanks, Ming
