On Thu, Sep 24 2015 at 5:27pm -0400, Bart Van Assche <bart.vanassche@xxxxxxxxxxx> wrote: > On 09/24/2015 02:18 PM, Mike Snitzer wrote: > >p.s. Bart, why is your test destroying the DM mpath device while it is > >issuing IO to the device? ;) > > Removing SCSI device instances created by the SRP initiator while > I/O is being submitted is a great way to stress-test the SRP > initiator driver but apparently the test I'm running triggers bugs > in other drivers than the SRP initiator driver ... I'm not referring to the removal of a DM mpath device's underlying SRP paths. The __dm_destroy() path is only used when destroying a DM device. The only DM device used by multipath is the DM mpath device. So somehow your test is running the equivalent of: dmsetup remove <toplevel_DM_mpath_device> While IO is being issued directly to that device. -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
