KVM VM's disappeared

Hi All,

I am in trouble here. I would really appreciate any help you guys an spare.

Scientific Linux 6.2, 64 bit. (Red Hat Enterprise Linux 6.2 clone)

$ rpm -qa \*qemu\*
qemu-kvm-0.12.1.2-2.209.el6_2.4.x86_64
qemu-img-0.12.1.2-2.209.el6_2.4.x86_64
gpxe-roms-qemu-0.9.7-6.9.el6.noarch

$ uname -r
2.6.32-220.23.1.el6.x86_64

When I fired up my KVM Virtual Machine Manager (virt-manager) this morning, four of my seven virtual machines disappeared, including the one is desperately need.

Checking /etc/libvirt/qemu and they are all there. Same attributes too. Checking where I put the virtual hard drives and they are all there too.

Okay, so I try firing up the three that remain, I get the following error message:

Error starting domain: unsupported configuration: spice TLS port set in XML configuration, but TLS is disabled in qemu.conf

Yes, each VM has a different spice port set so I can tell them apart. This has always worked smoothly.

Huh? qemu.conf is the default. The one with everything commented out. I even checked my backup: no change in qemu.conf.

Checking /var/log/libvirt/libvirtd.log gives:

2012-07-09 19:36:41.957+0000: 2821: info : libvirt version: 0.9.10, package: 21.el6 (Scientific Linux, 2012-06-22-02:34:35, sl6.fnal.gov)
2012-07-09 19:36:41.957+0000: 2821: error : virDomainDefParseXML:8871 : Maximum CPUs greater than topology limit
2012-07-09 19:36:41.959+0000: 2821: error : virDomainDefParseXML:8871 : Maximum CPUs greater than topology limit
2012-07-09 19:36:41.959+0000: 2821: error : virDomainDefParseXML:8871 : Maximum CPUs greater than topology limit
2012-07-09 19:36:41.960+0000: 2821: error : virDomainDefParseXML:8871 : Maximum CPUs greater than topology limit
2012-07-09 19:47:59.089+0000: 2811: error : qemuBuildCommandLine:5526 : unsupported configuration: spice TLS port set in XML configuration, but TLS is disabled in qemu.conf

Again with the spice port error.

The only thing I did to my system between working yesterday and not working today was downgrade my flash-plugin.

I tried setting "spice_tls = 1" in qemu.conf, but the other four VM still do not show up. Spice lays an egg on the ones that do show up, so I set spice_tls back to commented out.

I removed qemu-kvm-0.12.1.2-2.209.el6_2.4.x86_64, rebooted, reinstalled, rebooted. No symptom change.

What is the world? I can not find anything wrong!

Many thanks,
-T