Comment 38 for bug 795717

I build a 32-bit RHEL 5 compatible Qemu/KVM guest, really Scientific Linux 5.7. The guest was built from SL.57.090911.DVD.i386.disc1.iso plus today's updates.

The guest runs fine with 1 CPU defined and hangs trying to boot with 2 CPUs defined so I can reproduce this 100% with the following VM host:

$ lsb_release -ds
Ubuntu 10.04.3 LTS
$ uname -srvm
Linux 2.6.38-12-server #51~lucid1-Ubuntu SMP Thu Sep 29 20:09:53 UTC 2011 x86_64

Qemu/KVM/Libvirt is the one from Natty backported to Lucid via PPA:
https://launchpad.net/~nutznboltz/+archive/kvm-libvirt-lts

$ dpkg -l | grep 0.14.0+noroms-0ubuntu4.4~ppa1
ii qemu-common 0.14.0+noroms-0ubuntu4.4~ppa1 qemu common functionality (bios, documentati
ii qemu-kvm 0.14.0+noroms-0ubuntu4.4~ppa1 Full virtualization on i386 and amd64 hardwa

$ dpkg -l | grep 0.8.8-1ubuntu6.5~ppa1
ii libvirt-bin 0.8.8-1ubuntu6.5~ppa1 the programs for the libvirt library
ii libvirt0 0.8.8-1ubuntu6.5~ppa1 library for interfacing with different virtu
ii python-libvirt 0.8.8-1ubuntu6.5~ppa1 libvirt Python bindings

When the 2.6.38-12 backport kernel plus the kvm clock patch finishes compiling I will install it and test to see if the 32-bit RHELish guest still hangs or not.

I will also test on regular x86_64 Natty soon.