Yesterday, I did a few tweaks for my system which uses VGA passthrough.
- I moved virtual CPUs to dedicated CPUs (isolcpus=4-7 kernel boot argument)
- I instructed my windows guest to use MSI IRQ
Sound crackles disappeared, but after a few minutes of playing Starcraft I got first ever reboot of windows 8.1 in virtual machine. When I tried to restart the virtual machine I got the message that qcow2 image is corrupted.
qemu-img check crashes with segfault now on the image.
Any way I can make a useful bug report from this?
I assume the qemu code handling writes to the qcow2 image was a bit stressed with the constraint to use different CPUs for virtual CPUs and actual io threads.
--
Regards,
Ivan