[Pkg-libvirt-maintainers] Bug#580956: libvirt-bin: restore of kvm virtual machine is broken

[Andreas Bießmann]

Package: libvirt-bin
Version: 0.8.1-1
Severity: important
Tags: squeeze


Restoring a saved state of any kvm virtualized vm renders the vm unusable.

This error might be in libvirt since 0.7.7 but i have not checked this!
It was at least not available in 0.7.6

The error could reliably reproduced by doing the following steps on a minimal
etch vm:
 - virsh -c qemu:///system save etch ./etch.stat
 - virsh -c qemu:///system restore ./etch.stat

After this the whole virtualized ram seems to be defective. The vm prompted
for login before save/restore. When hitting return after save/restore I get
partly messages from dmesg.

Can anyone else reproduce this issue?

regards,
Andreas Bießmann

-- System Information:
Debian Release: squeeze/sid
  APT prefers testing
  APT policy: (800, 'testing'), (400, 'stable'), (10, 'unstable')
Architecture: i386 (i686)

Kernel: Linux 2.6.32-5-686-bigmem (SMP w/4 CPU cores)
Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash

Versions of packages libvirt-bin depends on:
ii  adduser                   3.112          add and remove users and groups
ii  libavahi-client3          0.6.25-3       Avahi client library
ii  libavahi-common3          0.6.25-3       Avahi common library
ii  libc6                     2.10.2-6       Embedded GNU C Library: Shared lib
ii  libcap-ng0                0.6.3-1        An alternate posix capabilities li
ii  libdevmapper1.02.1        2:1.02.45-1    The Linux Kernel Device Mapper use
ii  libgcrypt11               1.4.5-2        LGPL Crypto library - runtime libr
ii  libgnutls26               2.8.6-1        the GNU TLS library - runtime libr
ii  libparted0debian1         2.2-5          The GNU Parted disk partitioning s
ii  libpciaccess0             0.11.0-2       Generic PCI access library for X
ii  libreadline6              6.1-1          GNU readline and history libraries
ii  libsasl2-2                2.1.23.dfsg1-5 Cyrus SASL - authentication abstra
ii  libudev0                  153-2          libudev shared library
ii  libuuid1                  2.16.2-0       Universally Unique ID library
ii  libvirt0                  0.8.1-1        library for interfacing with diffe
ii  libxenstore3.0            3.4.3~rc3-2    Xenstore communications library fo
ii  libxml2                   2.7.7.dfsg-2   GNOME XML library
ii  logrotate                 3.7.8-6        Log rotation utility

Versions of packages libvirt-bin recommends:
ii  bridge-utils               1.4-5         Utilities for configuring the Linu
ii  dnsmasq-base               2.52-1        A small caching DNS proxy and DHCP
ii  iptables                   1.4.6-2       administration tools for packet fi
ii  netcat-openbsd             1.89-4        TCP/IP swiss army knife
ii  qemu-kvm                   0.12.3+dfsg-4 Full virtualization on x86 hardwar

Versions of packages libvirt-bin suggests:
ii  policykit-1                   0.96-2     framework for managing administrat

-- Configuration Files:
/etc/libvirt/libvirtd.conf changed:
unix_sock_group = "libvirt"
unix_sock_rw_perms = "0770"
auth_unix_ro = "none"
auth_unix_rw = "none"


-- debconf-show failed