Turned out to be a buggy test -- hammer is missing an infernalis commit f217865cf7c4 ("test_librbd_fsx: invalidate before discard in krbd mode").
I gave it a try; please take a look: * https://github.com/ceph/ceph/pull/13230 Nathan -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html