Comment 3 for bug 845764

I have a similar problem so I think the bug is still there. I can provide more info if you want.

I'm running libvirt in a rackspace server.

00:49:55.700: 3071: info : libvirt version: 0.9.2
00:49:55.700: 3071: error : virCommandWait:1393 : internal error Child process (/sbin/iptables --table mangle --delete POSTROUTING --out-interface virbr0 --protocol udp --destination-port 68 --jump CHECKSUM --checksum-fill) status unexpected: exit status 1
00:49:55.732: 3071: error : virCommandWait:1393 : internal error Child process (/sbin/iptables --table mangle --insert POSTROUTING --out-interface virbr0 --protocol udp --destination-port 68 --jump CHECKSUM --checksum-fill) status unexpected: exit status 1
00:49:55.732: 3071: warning : networkAddGeneralIptablesRules:1199 : Could not add rule to fixup DHCP response checksums on network 'default'.
00:49:55.732: 3071: warning : networkAddGeneralIptablesRules:1200 : May need to update iptables package & kernel to support CHECKSUM rule.
00:49:55.789: 3071: error : udevDeviceMonitorStartup:1620 : Failed to initialize libpciaccess: No such file or directory
00:49:55.789: 3071: error : virStateInitialize:830 : Initialization of udev state driver failed
00:49:55.834: 3071: error : main:3390 : Driver state initialization failed
00:49:55.834: 3072: warning : qemudDispatchSignalEvent:424 : Shutting down on signal 3

Installed packages:
ii libvirt-bin 0.9.2-4ubuntu13 the programs for the libvirt library
ii libvirt0 0.9.2-4ubuntu13 library for interfacing with different virtualization systems
ii libpciaccess0 0.12.1-1 Generic PCI access library for X

Architecture: x86_64