Error NIC adding

Community Support
1

Hi,

When I `m trying to add a NIC to existing VM, get this error.
What Is the problem?

Sat Mar 19 14:37:17 2016 [Z0][VMM][I]: ExitCode: 0
Sat Mar 19 14:37:17 2016 [Z0][VMM][I]: Successfully execute network driver operation: pre.
Sat Mar 19 14:37:18 2016 [Z0][VMM][I]: Command execution fail: /var/tmp/one/vmm/kvm/attach_nic 'one-626' '02:00:5b:69:ef:35' 'brbond0' '-' 'dummy' 626 KVMServer-1
Sat Mar 19 14:37:18 2016 [Z0][VMM][E]: attach_nic: Command "virsh --connect qemu:///system attach-device one-626 <(
Sat Mar 19 14:37:18 2016 [Z0][VMM][I]: cat <<EOT
Sat Mar 19 14:37:18 2016 [Z0][VMM][I]: <interface type='bridge'>
Sat Mar 19 14:37:18 2016 [Z0][VMM][I]: <source bridge='brbond0'/>
Sat Mar 19 14:37:18 2016 [Z0][VMM][I]: <mac address='02:00:5b:69:ef:35'/>
Sat Mar 19 14:37:18 2016 [Z0][VMM][I]: 
Sat Mar 19 14:37:18 2016 [Z0][VMM][I]: 
Sat Mar 19 14:37:18 2016 [Z0][VMM][I]: </interface>
Sat Mar 19 14:37:18 2016 [Z0][VMM][I]: EOT
Sat Mar 19 14:37:18 2016 [Z0][VMM][I]: )" failed: error: Failed to attach device from /dev/fd/63
Sat Mar 19 14:37:18 2016 [Z0][VMM][I]: error: internal error: No more available PCI slots
Sat Mar 19 14:37:18 2016 [Z0][VMM][E]: Could not attach () to one-626
Sat Mar 19 14:37:18 2016 [Z0][VMM][I]: ExitCode: 1
Sat Mar 19 14:37:18 2016 [Z0][VMM][I]: Failed to execute virtualization driver operation: attach_nic.
Sat Mar 19 14:37:18 2016 [Z0][VMM][E]: Error attaching new VM NIC: Could not attach () to one-626
2

Problem doesn`t solved. Libvirt log when i try to add new network interface.

ен 20 14:36:48 KVMServer-1 libvirtd[3212654]: internal error: No more available PCI slots
сен 20 14:48:08 KVMServer-1 libvirtd[3212654]: internal error: No more available PCI slots
сен 20 14:59:59 KVMServer-1 libvirtd[3212654]: internal error: No more available PCI slots
сен 20 15:00:10 KVMServer-1 libvirtd[3212654]: internal error: No more available PCI slots
сен 20 15:04:57 KVMServer-1 libvirtd[3212654]: internal error: No more available PCI slots
3

Try to use MODEL = virtio in the NIC. The problem is that the PCI has a max number of devices it can have, while the virtio bus is capable of handling more.

2 Likes
4

Thanks, it solved my problem.

5

Hmmm… The problem reappeared with the same error.
All interfaces at VM are with virtio drivers.

$ libvirtd -V
libvirtd (libvirt) 2.0.0


Tue Aug 1 11:08:05 2017 [Z0][VM][I]: New LCM state is HOTPLUG_NIC
Tue Aug 1 11:08:06 2017 [Z0][VMM][I]: ExitCode: 0
Tue Aug 1 11:08:06 2017 [Z0][VMM][I]: Successfully execute network driver operation: pre.
Tue Aug 1 11:08:06 2017 [Z0][VMM][I]: Command execution fail: cat << EOT | /var/tmp/one/vmm/kvm/attach_nic 'one-38' '02:00:c3:d1:3a:18' 'br2068' 'virio' 'dummy' 'one-38-27' 38 vCloud-3
Tue Aug 1 11:08:06 2017 [Z0][VMM][E]: attach_nic: Command "virsh --connect qemu:///system attach-device one-38 <(
Tue Aug 1 11:08:06 2017 [Z0][VMM][I]: cat <Tue Aug 1 11:08:06 2017 [Z0][VMM][I]: 
Tue Aug 1 11:08:06 2017 [Z0][VMM][I]: 
Tue Aug 1 11:08:06 2017 [Z0][VMM][I]: 
Tue Aug 1 11:08:06 2017 [Z0][VMM][I]: 
Tue Aug 1 11:08:06 2017 [Z0][VMM][I]: 
Tue Aug 1 11:08:06 2017 [Z0][VMM][I]: 
Tue Aug 1 11:08:06 2017 [Z0][VMM][I]: 
Tue Aug 1 11:08:06 2017 [Z0][VMM][I]: EOT
Tue Aug 1 11:08:06 2017 [Z0][VMM][I]: )" failed: error: Failed to attach device from /dev/fd/63
Tue Aug 1 11:08:06 2017 [Z0][VMM][I]: error: internal error: No more available PCI slots
Tue Aug 1 11:08:06 2017 [Z0][VMM][E]: Could not attach (one-38-27) to one-38
Tue Aug 1 11:08:06 2017 [Z0][VMM][I]: ExitCode: 1
Tue Aug 1 11:08:06 2017 [Z0][VMM][I]: Failed to execute virtualization driver operation: attach_nic.
Tue Aug 1 11:08:06 2017 [Z0][VMM][E]: Error attaching new VM NIC: Could not attach (one-38-27) to one-38
Tue Aug 1 11:08:06 2017 [Z0][VM][I]: New LCM state is RUNNING