On Fri, Mar 22, 2013 at 10:15:49PM -0700, Darrick J. Wong wrote: > Interesting ... if I set up this: > # echo "0 67108864 linear /dev/sda 0" | dmsetup create origin > And then repeat the test, but using /dev/mapper/origin as the origin instead > of /dev/sda, the problem goes away. So that looks like an easy and correct workaround for now. Alasdair -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel