Arch Linux

nobody44

Member

Registered: 2011-08-25

Posts: 29

Qemu and QXL

Hello,

I wanted to test the QXL video model in QEMU (libvirt), but fail to do so. What I have done so far:

- install QXL drivers from AUR on the guest system (xf86-video-qxl)
- install the spice-vdagent from AUR and started it
- changed the video cards memory size with virsh

But what currently happens:

Once the guest X system is started, it freezes from time to time for a random amount of time, e.g. 1 minute. In this minute the *guest* X system is completely frozen, *but* I can still connect through SSH and see, that the actual CPU usage on the guest system is nearly 0. The host system on the other hand has a really high CPU load, and its really just the qemu process that suddenly requires 30% of my CPU resources, although the guest VM only has one vCPU (6 cores, so 30% are about 2 cores).
Both systems are Arch Linux, guest and host are up to date. With other video models this kind of issue does not happen. I like the performance of QXL though... when it is not frozen...

Any ideas what might cause this weird issue?

Thank you very much