On Fri, Feb 19 2016 at 2:42pm -0500, Mike Snitzer <snitzer@xxxxxxxxxx> wrote: > On Fri, Feb 19 2016 at 3:37am -0500, > Junichi Nomura <j-nomura@xxxxxxxxxxxxx> wrote: > > > On 02/19/16 09:33, Nomura Junichi wrote: > > > On 02/19/16 02:17, Mike Snitzer wrote: > > >> What is the last kernel version that your scripts have worked on? > > > > > > v4.4 worked fine. I'll check with v4.5-rc4 when I get a machine. > > > > v4.5-rc4 works fine, too. > > Have you been running with blk-mq? > Either by setting CONFIG_DM_MQ_DEFAULT or: > echo Y > /sys/module/dm_mod/parameters/use_blk_mq > > I'm seeing test_02_sdev_delete fail with blk-mq enabled. I only see failure if I stack dm-mq ontop of old non-mq scsi devices with: echo N > /sys/module/scsi_mod/parameters/use_blk_mq echo Y > /sys/module/dm_mod/parameters/use_blk_mq If I use scsi-mq for the underlying devices all works fine (been testing the latest dm-4.6 branch though, I'll go back and try stock 4.5-rc4 just to double check). But this makes me think the novelty of having dm-mq support stacking on non-blk-mq devices was misplaced. It is a senseless config. I'll probably remove support for such stacking soon (next week). -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
