KVM Workstation Error on startup - “Error starting domain: Unable to write to ‘/sys/fs/cgroup/machine/qemu-5-Whonix-Workstation.libvirt-qemu/emulator/cpuset.cpus’: Numerical result out of range”

KVM
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Hello, I have recently attempted to install Whonix for KVM and am experiencing an error I can’t figure out. I am able to run the Whonix Gateway just fine from virt manager, but upon trying to launch the Workstation I get the error:
“Error starting domain: Unable to write to ‘/sys/fs/cgroup/machine/qemu-5-Whonix-Workstation.libvirt-qemu/emulator/cpuset.cpus’: Numerical result out of range”

All of my software is up to date and I am trying to run Whonix 17.2.8.5
Any assistance would be appreciated, thank you.

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Try Virtualizer Generic Bug Reproduction.

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I installed a Debian virtual machine to test and it worked perfectly fine. The gateway runs perfectly fine as well, it’s only the workstation that’s throwing errors.

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4

Check cpuset KVM xml setting and play with it, modify, remove.

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5

what is your host? kvm version?

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My host is Artix linux and I am using Qemu 9.1.2-1, libvirtd 10.10.0

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extraextra had the right answer. Turns out the whonix workstation was mapped to a cpu that doesn’t exist on my machine. Thanks for the help everybody.

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Can you elaborate your issue and fix (add as much details as possible) here?

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