Windows 11 Guest 100% CPU-Load after hours

[rh-xZa2W]

Hi everyone,

we have multiple Windows 11 VMs on different PVE's with sometime 100% CPU load after hours of inactivity. The only solution to return to normal CPU load is to restart the VM.

Any ideas or improvements recommendations?

VM Config:

root@pve:~# qm config 905
agent: 1
balloon: 0
bios: ovmf
boot: order=virtio0;net0;ide2
cores: 2
cpu: host
machine: pc-i440fx-5.2
memory: 4096
name: name
net0: virtio=mac,bridge=vmbr1,firewall=1
numa: 0
onboot: 1
ostype: win10
scsihw: virtio-scsi-pci
smbios1: uuid=9b5bc3c7-d3e3-42c7-8d7b-e36b5ca2540e
sockets: 1
virtio0: local:905/vm-905-disk-0.qcow2,cache=writeback,size=100G
vmgenid: 34ea6cc5-f370-4922-82be-aeedd1044cb6

proxmox-ve: 7.2-1 (running kernel: 5.15.39-3-pve)
pve-manager: 7.2-7 (running version: 7.2-7/d0dd0e85)
pve-kernel-5.15: 7.2-8
pve-kernel-helper: 7.2-8
pve-kernel-5.4: 6.4-16
pve-kernel-5.15.39-3-pve: 5.15.39-3
pve-kernel-5.15.35-1-pve: 5.15.35-3
pve-kernel-5.4.178-1-pve: 5.4.178-1
pve-kernel-5.4.162-1-pve: 5.4.162-2
ceph-fuse: 14.2.21-1
corosync: 3.1.5-pve2
criu: 3.15-1+pve-1
glusterfs-client: 9.2-1
ifupdown: residual config
ifupdown2: 3.1.0-1+pmx3
libjs-extjs: 7.0.0-1
libknet1: 1.24-pve1
libproxmox-acme-perl: 1.4.2
libproxmox-backup-qemu0: 1.3.1-1
libpve-access-control: 7.2-4
libpve-apiclient-perl: 3.2-1
libpve-common-perl: 7.2-2
libpve-guest-common-perl: 4.1-2
libpve-http-server-perl: 4.1-3
libpve-storage-perl: 7.2-7
libqb0: 1.0.5-1
libspice-server1: 0.14.3-2.1
lvm2: 2.03.11-2.1
lxc-pve: 5.0.0-3
lxcfs: 4.0.12-pve1
novnc-pve: 1.3.0-3
proxmox-backup-client: 2.2.5-1
proxmox-backup-file-restore: 2.2.5-1
proxmox-mini-journalreader: 1.3-1
proxmox-widget-toolkit: 3.5.1
pve-cluster: 7.2-2
pve-container: 4.2-2
pve-docs: 7.2-2
pve-edk2-firmware: 3.20210831-2
pve-firewall: 4.2-5
pve-firmware: 3.5-1
pve-ha-manager: 3.4.0
pve-i18n: 2.7-2
pve-qemu-kvm: 7.0.0-3
pve-xtermjs: 4.16.0-1
pve-zsync: 2.2.3
qemu-server: 7.2-4
smartmontools: 7.2-pve3
spiceterm: 3.2-2
swtpm: 0.7.1~bpo11+1
vncterm: 1.7-1
zfsutils-linux: 2.1.5-pve1

 

[rh-xZa2W]

ostype: win10

has already been updated to win11.

 

[dcsapak]

any interesting logs from either the host, or from inside the vm ?

 

[rh-xZa2W]

any interesting logs from either the host, or from inside the vm ?

Nothing special in the logs on both sides. We have this on different hosts, with different Win11 machines (But only Win11).

CPU History is looking like this (Drops in load are while and after restart):

 

[dcsapak]

can you try a different cpu model than 'host' ?

 

[rh-xZa2W]

can you try a different cpu model than 'host' ?

Yes, we normally run kvm64 and switched to host but the problem persists with host type enabled.