Ubuntu
qemu-kvm package

  1. Bug #795717
  2. Comment #41

Comment 41 for bug 795717

Revision history for this message
nutznboltz (nutznboltz-deactivatedaccount) wrote :

Since I promised to test on Natty too:

VM host details:
AMD Phenom(tm) II X6 1100T Processor
$ lsb_release -sd
Ubuntu 11.04
$ uname -srvm
Linux 2.6.38-12-generic #51-Ubuntu SMP Wed Sep 28 14:27:32 UTC 2011 x86_64
$ dpkg -l | egrep 'qemu|libvirt|bios'
ii libvirt-bin 0.8.8-1ubuntu6.5 the programs for the libvirt library
ii libvirt0 0.8.8-1ubuntu6.5 library for interfacing with different virtualization systems
ii python-libvirt 0.8.8-1ubuntu6.5 libvirt Python bindings
ii qemu-arm-static 0.12.5+noroms-0ubuntu7.2 dummy transitional package for qemu-kvm-extras-static
ii qemu-common 0.14.0+noroms-0ubuntu4.4 qemu common functionality (bios, documentation, etc)
ii qemu-keymaps 0.14.50-2011.03-1-0ubuntu2 QEMU keyboard maps
ii qemu-kvm 0.14.0+noroms-0ubuntu4.4 Full virtualization on i386 and amd64 hardware
ii qemu-kvm-extras 0.14.50-2011.03-1-0ubuntu2 QEMU system and user mode emulation (transitional package)
ii qemu-kvm-extras-static 0.14.50-2011.03-1-0ubuntu2 QEMU static user mode emulation binaries (transitional package)
ii qemu-system 0.14.50-2011.03-1-0ubuntu2 QEMU full system emulation binaries
ii qemu-user 0.14.50-2011.03-1-0ubuntu2 QEMU user mode emulation binaries
ii qemu-user-static 0.14.50-2011.03-1-0ubuntu2 QEMU user mode emulation binaries (static version)
ii qemulator 0.5-3.2ubuntu1 a solution for easy setup and management of qemu
ii seabios 0.6.1.2-0ubuntu1 legacy BIOS implementation which can be used as a coreboot payload
ii vgabios 0.6c-2ubuntu3 VGA BIOS software for the Bochs and Qemu emulated VGA card

VM guest details:
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.
With 1 CPU it boots fine.
With 2 CPUs it hangs.
See attached screenshot of virt-manager plus virt-top. The disk and network activity in virt-top are always zeros when the VM is hung while the CPU activity is high. Note VM host has 6-cpu cores so 5.7% CPU is averaged across them. Regular /usr/bin/top shows /usr/bin/kvm getting 100% for this guest while it is hug.