Hi Daniel, On Tue, Jun 29, 2010 at 02:06:32AM +0200, Daniel Friesel wrote: > Package: libvirt0 > Version: 0.8.1-2 > Severity: normal > > > Setup: > libvirt with qemu, network managed by libvirt. > > Problem: > When starting libvirt VMs when no working DNS is available, virsh is unable to > connect to libvirt and simply hangs without saying anything. > Adding the IPs configured for the VMs and corresponding (fake) hostnames to > /etc/hosts and then restating libvirt fixes this issue. > > It looks like this is because the iptables calls made by libvirt to set up VM > routing do not use the -n option. So, if all DNS servers for one (or more) VM > IPs are unreachable, iptables waits a long time until reaching a timeout, and > in this time libvirt is completely unusable. > > I propose to use "iptables -n" every time iptables is called by libvirt. It > should not have any negative effects and would save a lot of trouble and > debugging in case of DNS fuckups. Could you check with strace where your libvirtd actually hangs? -- Guido
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