On 10/7/24 03:29, Michael Tokarev wrote:
The highlights:
-machine pc-q35-8.1
-cpu host -- what is your CPU anyway?
It's an AMD Ryzen 7 7840U w/ Radeon 780M Graphics. The machine is a 13'
Framework, I've had it for a year, running Debian testing without many
issues.
-smp 8
- ahci (sata) drive
- qxl
- e1000 nic
- intel hda audio
- sandbox
Still, I can't reproduce this behavior here, no matter how I try.
My VMs Just Work (tm).
I'm jealous...
I upgraded again to 9.1.0+ds-8, changed the video setting from QXL to
Virtio and fired up Windows. I ran it for over half an hour with no
freeze up, so it's something to do with the QXL video display. Does this
give you any ideas?
It is definitely worth the effort to check, even without re-enabling
ping -
ping this system from any other machine on the network, - it wont
respond,
but you'll see if the said machine gets an ARP entry (visible in `ip
neigh`
output) - if its entry is there and gets refreshed regularly, it means
your system kernel is working at least, and the problem might be due to
display freezing.
I pinged the Windows VM after the display froze (using Video QXL) and it
actually responds. I got the IP address from 'virsh domifaddr
Windows10', I assume that's the right one to ping.
BTW, does qemu process respond to anything during the freeze? I don't
know libvirt, it has a way to get to the qemu monitor and issue some
commands there, - like, eg, `info cpu`, `info block` etc. Does it work?
Also, is qemu doing something during the freeze, like, for example,
spinning up one or more CPU cores to 100%, or is it idling?
I don't think I ever saw any of the cores spinning up to 100% use during
the freeze up; it's frozen now (using QXL Video device) and there is
hardly any CPU activity in the guest or the host and the guest usage is
flat. While frozen, 'virsh domstate Windows10' says 'running'; I tried
several 'virsh domXXX' commands and they all returned something
indicating activity behind the UI freeze.
Hope this helps.
Hank
--
Hank Knox, FRSC
Schulich School of Music of
McGill University (retired)
Montreal, QC
