Hello,
I'm hitting a hard wall with qemu and efi.
I'm running multiple windows server 2019 vms which usually reboot on updates.
The issue is, efi breaks on reboot.
It randomly(race condition?, does not occur consistently) ends up in a blackscreen: no bootloader, no efi screen and the only way to get out of that state is to destroy the vm.
moving the host mouse cursor above the console in virt-manager results in a flashing mouse cursor.
there are no physical devices attached and there is currently no virtio attachment in use (os has virtio drivers installed)
Machine is Q35 with tianocore/ovmf efi.
I managed to reproduce the same behaviour on rhel 8.3 as well as voidlinux (kernel 5.11)
gdb output of qemu is showing nothing worrisome, else ive compiled ovmf manually for debug output.
libvirt logs don't show any issues.