[dm-devel] good dm-mpath test setup?

[Christoph Hellwig]

I've been looking into support blk-mq/scsi-mq in dm-mpath, but I'm
already running into issues with mainline.  I created a couple luns
(without second path) using iet, and then using the iscsi initiator
to access them.  But it seems like no I/O is possible through dm-mpath
for this simple setup as the kpartx processes spawned by udev already
hang.  Is dm-mpath (default config, no multipath.conf) support to work
for a single path setup, or is this expected behavior?

Does anyone have a good default iet or maybe lio config for dm-mpath
testing?