[SOLVED] all qmp commands fail

[harmgsn]

Hello,

I'm trying to do a qm suspend on a VM and each and every VM I have fails with qmp timeouts. Example:

VM 201 qmp command 'stop' failed - got timeout

In journalctl -e I see the following timeouts:
May 21 18:52:56 vms qm[577016]: VM 201 qmp command failed - VM 201 qmp command 'stop' failed - got timeout
May 21 18:53:04 vms pvestatd[1557]: VM 201 qmp command failed - VM 201 qmp command 'query-proxmox-support' failed - got timeout

# pveversion -v | grep -E "proxmox-ve|kvm|backup-client"
proxmox-ve: 8.2.0 (running kernel: 6.8.4-3-pve)
proxmox-backup-client: 3.2.2-1
pve-qemu-kvm: 8.1.5-6

Even running the qm stop or qm suspend command from command-line directly fails.

I only have 3 guest VMs and it fails on all 3. Ubuntu, Debian and FreeBSD.

I've rebooted the guests, the host, and ensured both are fully up to date... doesn't matter. The commands fail.

Any help/insight here would be wonderful. Thank you!

 

[harmgsn]

I thought this was an issue with Proxmox Backup being in the picture, it's not. I can't do anything with snapshots, backups, copies. All "qmp" commands time out breaking any attempt at trying to backup VMs on this host.

 

[harmgsn]

vmxnet3 NIC driver was the culprit, apparently. Switched NICs to VIRTO and suddenly qmp commands all succeed and backup, suspend, snapshot - all operations function.

Why is this not mentioned in the documentation anywhere?