It seems like I might be affected by this recent qemu 4.1 bug:
https://bugs.archlinux.org/task/64150
https://bugzilla.redhat.com/show_bug.cgi?id=1764721
https://lists.gnu.org/archive/html/qemu-block/2019-10/msg01414.html
I'm not 100% sure. But the second link mentions the easiest way to reproduce
Hello,
I have a Windows 10 guest, when I boot it, it goes in to Automatic
Repair mode, and after some time reports it was unable to repair the PC.
This is from an older snapshot ("snapshot1"), and if I try switching
back to a more recent snapshot ("snapshot2"), libvirt reports that it
can't find
