[Pkg-libvirt-maintainers] Bug#748703: Bug#748703: libvirt-bin: libvirtd version 1.2.4-3 cannot probe backing volume format

[Guido Günther]

severity 748703 important
thanks

On Mon, May 19, 2014 at 04:29:07PM -0400, Bob Weber wrote:
> Package: libvirt-bin
> Version: 1.2.4-3
> Severity: grave
> Justification: renders package unusable
> 
> 
> After upgrading to 1.2.4-3 libvirtd reports:
> 
> kern.log.1:May 17 19:20:06 bob libvirtd[11315]: internal error: cannot probe backing volume format: Debian-7.4-base.img
> 
> This happens for every VM that I have that uses a qcow2 backing image file.  A google search only found anything related 
> to backing files on a much earlier version of libvirtd.  I have downgraded the libvirt-bin and libvirt0 to 1.2.1-1 to temporarily
> resolve the issue.

This looks rather like a incomplete pool defnition but you didn't
bother to attach any XML.
Cheers,
 -- Guido

> 
> 
> The script:
> 
> for f in *.img ; do
>   echo
>   echo "=================================="
>   qemu-img info $f
> done
> 
> gives this output:
> 
> ==================================
> image: Debian-7.4-base.img
> file format: qcow2
> virtual size: 30G (32212254720 bytes)
> disk size: 5.3G
> cluster_size: 65536
> Format specific information:
>     compat: 1.1
>     lazy refcounts: false
> 
> ==================================
> image: Debian-7.4.img
> file format: qcow2
> virtual size: 30G (32212254720 bytes)
> disk size: 1.7G
> cluster_size: 65536
> backing file: Debian-7.4-base.img
> Format specific information:
>     compat: 1.1
>     lazy refcounts: false
> 
> 
> -- System Information:
> Debian Release: jessie/sid
>   APT prefers testing
>   APT policy: (500, 'testing')
> Architecture: amd64 (x86_64)
> Foreign Architectures: i386
> 
> Kernel: Linux 3.12.9-desktop-low-latency-amd64 (SMP w/6 CPU cores; PREEMPT)
> Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
> Shell: /bin/sh linked to /bin/dash
> 
> Versions of packages libvirt-bin depends on:
> ii  adduser              3.113+nmu3
> ii  gettext-base         0.18.3.2-1
> ii  init-system-helpers  1.18
> ii  libapparmor1         2.8.0-5+b1
> ii  libaudit1            1:2.3.6-1
> ii  libavahi-client3     0.6.31-4
> ii  libavahi-common3     0.6.31-4
> ii  libblkid1            2.20.1-5.7
> ii  libc6                2.18-5
> ii  libcap-ng0           0.7.3-1+b1
> ii  libdbus-1-3          1.8.2-1
> ii  libdevmapper1.02.1   2:1.02.83-2
> ii  libfuse2             2.9.3-10
> ii  libgcrypt11          1.5.3-4
> ii  libgnutls26          2.12.23-15
> ii  libnetcf1            1:0.2.3-4
> ii  libnl-3-200          3.2.24-2
> ii  libnl-route-3-200    3.2.24-2
> ii  libnuma1             2.0.9~rc5-1
> ii  libparted0debian1    2.3-20
> ii  libpcap0.8           1.5.3-2
> ii  libpciaccess0        0.13.2-1
> ii  librados2            0.72.2-3
> ii  librbd1              0.72.2-3
> ii  libreadline6         6.3-6
> ii  libsasl2-2           2.1.26.dfsg1-9
> ii  libselinux1          2.2.2-2
> ii  libssh2-1            1.4.3-2
> ii  libudev1             204-8
> pn  libvirt0             <none>
> ii  libxen-4.3           4.3.0-3+b1
> ii  libxenstore3.0       4.3.0-3+b1
> ii  libxml2              2.9.1+dfsg1-3
> ii  libyajl2             2.1.0-1
> ii  logrotate            3.8.7-1
> 
> Versions of packages libvirt-bin recommends:
> ii  bridge-utils    1.5-7
> ii  dmidecode       2.12-2
> ii  dnsmasq-base    2.69-1
> ii  ebtables        2.0.10.4-3
> ii  iproute         1:3.14.0-1
> ii  iptables        1.4.21-1
> ii  libxml2-utils   2.9.1+dfsg1-3
> ii  netcat-openbsd  1.105-7
> ii  parted          2.3-20
> ii  pm-utils        1.4.1-14
> ii  qemu            2.0.0+dfsg-4+b1
> ii  qemu-kvm        2.0.0+dfsg-4+b1
> 
> Versions of packages libvirt-bin suggests:
> pn  apparmor     <none>
> pn  auditd       <none>
> ii  policykit-1  0.105-5
> pn  radvd        <none>
> ii  systemd      204-8
> pn  systemtap    <none>
> 
> -- Configuration Files:
> /etc/default/libvirt-guests changed:
> ON_SHUTDOWN=shutdown
> SHUTDOWN_TIMEOUT=60
> 
> /etc/libvirt/qemu/networks/default.xml [Errno 2] No such file or directory: u'/etc/libvirt/qemu/networks/default.xml'
> 
> -- no debconf information
> 
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