[Pkg-libvirt-maintainers] Bug#706069: virt-manager 0.9.1 hangs on "create new VM" over network connexion with 22 images within an active pool

[Mathieu Desnoyers]

Package: virt-manager
Version: 0.9.1-4
Severity: important

Dear Maintainer,

When using virt-manager through ssh network connexion (120ms latency),
with about 22 volumes in an active pool, virt-manager "create new VM"
window hangs after about 5 seconds of interaction. While it is hung, the
remote libvirt-bin server issues a lot of stat/open system calls on the
volume's files (verified with strace). My remote libvirt-bin is a
0.9.8-2ubuntu17.8, running on Ubuntu 12.04.2. This issue appears to be
fixed in virt-manager 0.9.4-2 (unstable), but given that 0.9.1-4
(testing) has this issue, I think it might be worthwhile to consider
backporting the fix. I tested the "vol-list" command though virsh, both
locally (on the server), and through the network link: locally, it
returns the listing almost immediately. Remotely, it takes about 5
seconds to return the listing. It looks like virt-manager 0.9.1 issues a
timeout too quickly on this command and retry endlessly, thus making the
GUI hang. From a user point of view, having the GUI hanging starting
from the 22nd pool image, depending on network latency and throughput,
can be quite frustrating, as the cause of the hang is not easy to
pinpoint.

-- System Information:
Debian Release: 7.0
  APT prefers testing
  APT policy: (900, 'testing')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 3.5-trunk-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_CA.UTF-8, LC_CTYPE=en_CA.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages virt-manager depends on:
ii  gconf2                   3.2.5-1+build1
ii  librsvg2-common          2.36.1-1
ii  python                   2.7.3-4
ii  python-dbus              1.1.1-1
ii  python-glade2            2.24.0-3+b1
ii  python-gnome2            2.28.1+dfsg-1
ii  python-gtk-vnc           0.5.0-3.1
ii  python-gtk2              2.24.0-3+b1
ii  python-ipy               1:0.75-1
ii  python-libvirt           0.9.12-11
ii  python-spice-client-gtk  0.12-5
ii  python-support           1.0.15
ii  python-urlgrabber        3.9.1-4
ii  python-vte               1:0.28.2-5
ii  virtinst                 0.600.1-3

Versions of packages virt-manager recommends:
ii  gnome-icon-theme  3.4.0-2
ii  libvirt-bin       0.9.12-11

Versions of packages virt-manager suggests:
ii  gnome-keyring        3.4.1-5
pn  hal                  <none>
ii  python-gnomekeyring  2.32.0+dfsg-2+b1
pn  python-guestfs       <none>
pn  ssh-askpass          <none>
ii  virt-viewer          0.5.3-1

-- no debconf information