Re: libvirt-daemon: bridged nets:Cannot get interface MAC on 'vnet%d' for second vm/adapter
On 06/05/2018 21:12, Ben Hutchings wrote:
On Fri, 2018-05-04 at 03:08 +0200, Jakob Bohm wrote:
Package: libvirt-daemon
Version: 3.0.0-4+deb9u2~bpo8+1
Severity: important
NOTICE: This is for regular bridged networks, not the SR-IOV kind that
had a similar looking issue on Redhat systems sometime before 3.9.0.?
After upgrading from 3.0.0-4~bpo8+1 to 3.0.0-4+deb9u2~bpo8+1 starting
most VMs fail to start with the following error (as reported in
libvirtd.log):
error : virNetDevSetMAC:248 : Cannot get interface MAC on 'vnet%d': No
such device
[...]
I think this is kernel bug #897427.
Ben.
Looks weirdly similar, except that multiple tap devices work fine
when using qemu outside libvirt.
Also, libvirt outputs the same error message from the command
"virsh domxml-to-native qemu-argv example.xml", which isn't
supposed to affect the system in any way (such as telling the
kernel to configure tap devices).
But I will try with a kernel downgrade, although I would still
like a way to try the old libvirt backport too.
Enjoy
Jakob
--
Jakob Bohm, CIO, Partner, WiseMo A/S. http://www.wisemo.com
Transformervej 29, 2860 Soborg, Denmark. Direct +45 31 13 16 10
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