Fedora 15 guest suspends, doesn't wake up
by Richard W.M. Jones
I've not observed this before. I installed an F15 guest, completely
normal installation except I was trying out SPICE (rather than VNC).
After first boot, the guest suspended itself, probably after being
idle for some time. Needless to say it didn't resume properly. qemu
is using 10-15% of CPU constantly, but the guest is completely
unresponsive -- blank SPICE console, no response to keyboard or mouse,
and no network.
The only thing available are the kernel messages (via virt-dmesg)
which aren't very helpful. See attachment.
I've never seen a guest suspend before ...
Guest: Fedora 15 fresh install with SPICE
Host:
qemu-0.14.0-9.fc16.x86_64
kernel-2.6.38.7-30.fc15.x86_64
libvirt-0.9.2-3.fc16.x86_64
Rich.
--
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
Read my programming blog: http://rwmj.wordpress.com
Fedora now supports 80 OCaml packages (the OPEN alternative to F#)
http://cocan.org/getting_started_with_ocaml_on_red_hat_and_fedora
12 years, 9 months
Windows 7 guest dying
by Ian Pilcher
I'm having a problem with my Windows 7 guest dying (the VM itself, not
the guest OS). The only thing in the log is:
qemu-kvm: virtio: trying to map MMIO memory
2011-07-03 10:40:19.033: shutting down
Is there any way to figure out what is happening?
Thanks!
--
========================================================================
Ian Pilcher arequipeno(a)gmail.com
"If you're going to shift my paradigm ... at least buy me dinner first."
========================================================================
12 years, 9 months
qemu-kvm, virtio and arguments for best performance
by Peter G.
My physical system is a Fedora 15 x86_64 system with an Intel Core2
Duo E6320 processor that supports virtualization.
I have Windows Xp installed onto a qcow2 virtual machine. I call it
like so:
qemu-kvm -enable-kvm -cpu core2duo -m 1024 -boot c -vga std -soundhw
pcspk,es1370 -localtime -hda win-c.img -hdb win-e.img -cdrom /dev/sr0
1. Do I need the -enable-kvm argument in the line above?
2. qemu-kvm -cpu ? mentions the arguments -cpu core2duo, kvm64, qemu64
and others, but, from the list provided, it is unclear which I am to
use. I have been using core2duo. Does this refer to my physical or
virtual computer? Which should I choose? I want my virtual machine to
be as close as possible to a clone of my real machine, for the
purposes of running the virtual machine.
3. I read about getting better performance using the virtio driver.
Can it be used with qemu-kvm or only with libvirt? If I can use it,
how would I do so? I don't see any mention of it in the qemu
documentation, nor does there appear to be anywhere in the virtual
system's device manager where I can select a different driver for the
hard drive.
12 years, 9 months
