Now that qemu-system-x86 1:2.8+dfsg-6+deb9u3 has been released, I have upgraded and tested.
So far, so good! The CPU and RAM utilization of the `qemu-system-i386` process seems very normal: ~4% CPU usage and ~9% RAM usage. The HVM domU is booted and active. If it goes comatose again, I will let everyone know but, preliminarily, it looks like the upstream fix worked. -Michael
