Hi Dennis, This is indeed useful. Is there any chance you could re-run your test with this patch applied please? https://github.com/jthornber/linux-2.6/commit/64197a3802320c7a7359ff4a3e592e2bc5bb73dc - Joe -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel