See the comment near the top of the patch ... This is a proposed fix for: https://bugzilla.redhat.com/show_bug.cgi?id=566511 https://bugzilla.redhat.com/show_bug.cgi?id=566512 It needs testing on a wider range of bash versions, eg. bash <= 3.1 and bash < 4.0, and whatever bash was included in RHEL 5. Rich. -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones virt-top is 'top' for virtual machines. Tiny program with many powerful monitoring features, net stats, disk stats, logging, etc. http://et.redhat.com/~rjones/virt-top