[virt-tools-list] why -no-kvm flag?

Dan Bar Dov bardov at gmail.com
Tue Feb 9 09:03:56 UTC 2010


I tried, but for whatever reason it seems virsh cannot connect - here's what
I get:

[dan at gennady-dt ~]$ virsh dumpxml zzzzz
error: failed to get domain 'zzzzz'
error: Domain not found: no domain with matching name 'zzzzz'

[dan at gennady-dt ~]$ virsh list
 Id Name                 State
----------------------------------

[dan at gennady-dt ~]$ ps aux | grep qemu
qemu      3741  6.2  0.6 3311476 26604 ?       S    10:52   0:00
/usr/bin/qemu-system-x86_64 -S -M pc-0.12 -no-kvm -m 2048 -smp
2,sockets=2,cores=1,threads=1 -name zzzzz -uuid
de43e524-21a7-0131-d7df-8c9d2b56e570 -nodefaults -chardev
socket,id=monitor,path=/var/lib/libvirt/qemu/zzzzz.monitor,server,nowait
-mon chardev=monitor,mode=readline -boot c -drive
file=/var/lib/libvirt/images/zzzzz.img,if=none,id=drive-ide0-0-0,boot=on,format=raw
-device ide-drive,bus=ide.0,unit=0,drive=drive-ide0-0-0,id=ide0-0-0 -drive
if=none,media=cdrom,id=drive-ide0-1-0 -device
ide-drive,bus=ide.1,unit=0,drive=drive-ide0-1-0,id=ide0-1-0 -device
rtl8139,vlan=0,id=net0,mac=52:54:00:7c:ec:38,bus=pci.0,addr=0x4 -net
tap,fd=19,vlan=0,name=hostnet0 -chardev pty,id=serial0 -device
isa-serial,chardev=serial0 -usb -device usb-tablet,id=input0 -vnc
127.0.0.1:0 -k en-us -vga cirrus -device
virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3

BTW, I've also updated to:
libvirt-0.7.6-1.fc12.x86_64.rpm
libvirt-client-0.7.6-1.fc12.x86_64.rpm
libvirt-python-0.7.6-1.fc12.x86_64.rpm

Dan

On Mon, Feb 8, 2010 at 9:40 PM, Cole Robinson <crobinso at redhat.com> wrote:

> On 02/08/2010 12:30 PM, Dan Bar Dov wrote:
> > I've upgraded qemu-kvm to 0.12.2, (as well as virt-manager: 0.8.2, and
> > virtinst 0.500.1) and noticed
> > all virtual machines are extremely slow.
> > I noticed the qemu is now started using /usr/bin/qemu-system-x86_64 with
> > -no-kvm switch.
> >
> > I'm guessing this is working in full emulation mode and no hardware
> support,
> > which explains
> > the slowness.
> >
> > What affects the selection of the -no-kvm switch? What do I need to do to
> > get it working
> > properly again?
> >
>
> Are these newly created VMs, or existing ones that worked fine before
> the update? Can you post the output of 'virsh dumpxml $vmname' for an
> affected VM?
>
> Thanks,
> Cole
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://listman.redhat.com/archives/virt-tools-list/attachments/20100209/4eaa4454/attachment.htm>


More information about the virt-tools-list mailing list