I had to do it manually with `dmsetup remove loop?p?` I am using kernel 4.15.0-24-generic on ubuntu 18.04. I don't know if it's a bug introduce by ubuntu or a bug in kprtx 0.7.4 (may be alredy fixed ?) I don't know if I need to remort this as a bug ? where ? -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel