<div class="gmail_quote">On Tue, Mar 22, 2011 at 3:25 PM, D G Teed <<a href="mailto:donald.teed@gmail.com">donald.teed@gmail.com</a>> wrote: <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> It sits like this hung for over three minutes. control-C has no impact. kill -9 was required to stop yum update This is pretty much "straight out of the box". Is there still QA being done on Redhat Enterprise? I mean, beyond the Fedora users? --Donald </blockquote></div> This erratic behaviour was related to the parent host KVM being slightly old. Strangely, that had no ill effect on Debian guest hosts, only Redhat. I updated the packages on the parent host and then a new install of RH6 as a VM was much more stable. Here is a bug report discussing the problem as it bit other people: <a href="https://bugzilla.redhat.com/show_bug.cgi?id=607650">https://bugzilla.redhat.com/show_bug.cgi?id=607650</a> This is my first encounter with KVM introducing instability you would have never seen on a regular metal host. Too bad the guest host can't detect the version of libvirt + kernel on the parent and issue a warning. --Donald