Arch Linux

nphuracm

Member

From: China

Registered: 2022-07-16

Posts: 69

Libvirt: Shutting down VM freezes host

I have a PCI passthrough’d Windows VM configured in Libvirt for gaming purposes.
I had recently changed the USB forwarding method for the VM’s keyboard and mouse from directly passing the keyboard and mouse through to the VM to passing one of my onboard USB controllers (specifically an xHCI one) through via PCI passthrough.
After that change my PC began to work funny. Whenever I shut down the Windows VM, my Arch host would freeze after a noticeable delay from the shutdown (although still below 1s).
It does not seem to be a kernel panic though, as I do not see the flashing CAPSLOCK and SCROLLLOCK behavior that is usually used to signify a kernel panic. But that likelihood remains.
I also pacman -Syu’d but no luck.
How do I fix this issue? I will give as much information as requested if possible.

My kernel command line is as follows:

root=UUID=5a64015c-7770-4fa8-9f8a-d440879421e5 amd_iommu=on iommu=pt radeon.si_support=0 amdgpu.si_support=1 radeon.cik_support=0 amdgpu.cik_support=1 systemd.unit=graphical.target rw quiet splash

Last edited by nphuracm (2023-02-18 02:53:21)