On 04/25/11 13:18, Alex Williamson wrote: >>> I don't see this happening on my system, once manually set the mac never >>> changes. I can restart and reset the VM and the host and guest both >>> continue seeing the set mac address. I tested it with both a recent >>> rhel6.1 host kernel as well as upstream 2.6.39-rc4. If I switch to a VF >>> with an unset mac, those will change on each VM reset or restart. >> >> Blacklist igbvf in the host and you will. That must be the difference: I >> was preventing the vf driver from loading in the host -- it's not needed >> there, so why load it? > > I already have it blacklisted. It's not needed if you're using the VFs > they way we are, but there are other uses. > >> I rebooted for a fresh run. Loaded the igbvf driver before starting the >> VM using my tools. With the igbvf driver loaded in the host the MAC >> address for the VF was not reset. >> >> As for why I blacklisted it -- udev. What a PITA with VFs. I saw the >> feature for Fedora 15 which should address this. > > Yes, my VM is up to renaming the VFs eth1340 since the mac changes every > boot. I'm still confused though as I did a whole round of testing after > a reboot where igbvf was never loaded and the set mac address stuck > across VM restarts and resets. > > Alex > The resetting of the VM MAC address is fixed in 2.6.39-rc4, so it's a Fedora 14, 2.6.35.12 problem. David -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
