On Thu, 2017-02-02 at 14:13 -0500, Mike Snitzer wrote: > On Thu, Feb 02 2017 at 1:43pm -0500, Bart Van Assche <Bart.VanAssche@xxxxxxxxxxx> wrote: > > On Thu, 2017-02-02 at 13:33 -0500, Mike Snitzer wrote: > > > I'll go back over hch's changes to see if I can spot anything. But is > > > this testing using dm_mod.use_bk_mq=Y or are you testing old .request_fn > > > dm-multipath? > > > > The srp-test software tests multiple configurations: dm-mq on scsi-mq, dm-sq > > on scsi-mq and dm-sq on scsi-sq. I have not yet checked which of these > > three configurations triggers the kernel crash. > > OK, such info is important to provide for crashes like this. Please let > me know once you do. Hello Mike, Apparently it's the large I/O test (using dm-mq on scsi-mq) that triggers the crash: # ~bart/software/infiniband/srp-test/run_tests -r 10 [ ... ] Test /home/bart/software/infiniband/srp-test/tests/02-sq-on-mq succeeded Running test /home/bart/software/infiniband/srp-test/tests/03 ... Test large transfer sizes with cmd_sg_entries=255 removing /dev/mapper/mpatht: [ CRASH ] The source code of the test I ran is available at https://github.com/bvanassche/srp-test. Bart.-- To unsubscribe from this list: send the line "unsubscribe linux-block" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html