[et-mgmt-tools] import existing vms into virt-manager

Daniel P. Berrange berrange at redhat.com
Wed Aug 22 01:36:05 UTC 2007


On Tue, Aug 21, 2007 at 09:19:25PM -0400, Bryan Kearney wrote:
> Thanks.. that worked like a champ. One last question. After I loaded a 
> couple of files, I noticed that interface commands like this:
> 
>       <interface type='bridge'>
>          <source bridge='br0'/>
>          <mac address='52:54:60:12:34:78'/>
>        </interface>
> 
> with different mac addresses still result in collisions on the fd=10
> 
> /usr/bin/qemu-kvm -M pc -m 250 -smp 1 -monitor pty -no-acpi -boot c -hda 
> /dev/mapper/VolGroup00-f7kde -net nic,macaddr=52:54:60:12:34:78,vlan=0 
> -net tap,fd=10,script=,vlan=0 -usb -vnc 127.0.0.1:-5899
> 
> which means I can not launch more then one at a time. Is there a way to 
> control this?

This isn't a libvirt problem, this is a bug in KVM/QEMU's emulatiuon of the
rtl8139 NIC card. If you have more than one it mis-handles the MMIO reads
so they all end up being directed at the same card. There's a BZ about it
somewhere and we'll fix it in a future update.

Dan.
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