[Bug 268794] Simultaneous vcpu_lock_all() and vm_handle_rendezvous() can deadlock vmm

From: <bugzilla-noreply_at_freebsd.org>
Date: Sat, 21 Jan 2023 21:58:47 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=268794

--- Comment #4 from Robert Crowston <crowston@protonmail.com> ---
I was able to apply your patch and compile it. Windows boots, and non-GPU
passthrough works correctly. However, the GPU only runs for a few seconds
showing the Windows logo before the screen goes blank. Device manager (via
Remote Desktop) shows "device cannot start".

I'll keep experimenting.

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