I'm running it on my TR box with GPU passthrough, and I ended up opening a ticket with support because it just looked like a random crash unrelated to the VM. But then on a hunch I changed my CPU topology and RAM and that... fixed it?
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I haven't bisected it yet, but I went from 1s8c16t 32G unpinned to 1s8c8t 16G properly NUMA pinned and cores pinned to 8 physical cores on the die the GPU is attached to. But, like, all of this should be a performance thing only?
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Or is there some nontransparent stuff about hyperthreads that can crash software when they aren't where the OS thinks they should be?
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Anyway, >400 combo on Beat Saber says this VR gaming in a VM idea works perfectly fine, once it works.
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The VM alone makes me suspect DRM or some sort of anticheat.
Thanks. Twitter will use this to make your timeline better. UndoUndo
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would you mind sharing the secret sauce that makes this configuration work? (presumably qemu command line)
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Here is the libvirt config: https://mrcn.st/p/NwNat7sM This is a Threadripper 1950X with the memory in channel interleave mode (so proper NUMA exposed to the OS). The VM runs on node 0, which is attached to the big GPU. Using a recent nightly OVMF firmware.
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