Hello!
I encountered a problem with kernels 7.0.x
Windows VMs (mostly win10, but also win11) can randomly freeze, with cpu usage about 60-70%.
This happens only on newer (faster?) cpus, to be exact: i7-13 gen and i9-12 gen
I don't observe this behavior on any older hardware which spans from multiple types of xeons to i5-7400, i7-6700, etc etc.
What is troubling - there is nothing in logs, like it never happened. Only guest agent ping timeouts.
Can't strace kvm process for now because I have to revert to kernel 6.17.
I used cpu-affinity on those machines to place vms on p-cored and e-cores respectively, so I removed it - didn't help.
Qemu machine versions are set to 10.1, all virtio drivers are the newest possible - didn't help.
Machine type set to i440fx, i don't know if it happens on q35.
This is a preliminary report because I can't reproduce this on demand to strace the kvm process.
I encountered a problem with kernels 7.0.x
Windows VMs (mostly win10, but also win11) can randomly freeze, with cpu usage about 60-70%.
This happens only on newer (faster?) cpus, to be exact: i7-13 gen and i9-12 gen
I don't observe this behavior on any older hardware which spans from multiple types of xeons to i5-7400, i7-6700, etc etc.
What is troubling - there is nothing in logs, like it never happened. Only guest agent ping timeouts.
Can't strace kvm process for now because I have to revert to kernel 6.17.
I used cpu-affinity on those machines to place vms on p-cored and e-cores respectively, so I removed it - didn't help.
Qemu machine versions are set to 10.1, all virtio drivers are the newest possible - didn't help.
Machine type set to i440fx, i don't know if it happens on q35.
This is a preliminary report because I can't reproduce this on demand to strace the kvm process.