[Pkg-libvirt-maintainers] Bug#598149: libvirt-bin: autostart fails on reboot

[Jean-Louis Dupond]

Subject: libvirt-bin: autostart fails on reboot
Package: libvirt-bin
Version: 0.8.3-1
Severity: normal

*** Please type your report below this line ***
I have a routed setup of kvm (with libvirt).

My tun devices are created in /etc/network/interfaces.

auto tap0
iface tap0 inet static
   address xxx.xxx.xxx.xxx
   netmask 255.255.255.255
   tunctl_user libvirt-qemu
   up route add xxx.xxx.xxx.xxx/32 dev tap0

But when I reboot my host server, and libvirt starts, it can't start the 
guests.
I get the following error:
Sep 21 21:28:51 cloud libvirtd: 21:28:51.046: error : 
qemudReadLogOutput:2118 : internal error Process exited while reading 
console log output: char device redirected to /dev/pts/1#012could not 
open /dev/net/tun: Permission denied#012
Sep 21 21:28:51 cloud libvirtd: 21:28:51.047: error : 
qemuAutostartDomain:827 : Failed to autostart VM 'dupondje': internal 
error Process exited while reading console log output: char device 
redirected to /dev/pts/1#012could not open /dev/net/tun: Permission 
denied#012


It seems to fail because the tap0 doesn't exist yet, and libvirt tries 
to make it.

If I restart libvirt-bin after like 30 seconds, the devices get started 
without any issue.
So it seems like there is some race condition, that makes libvirt-bin 
start before the network is initialized.


-- System Information:
Debian Release: squeeze/sid
   APT prefers testing
   APT policy: (500, 'testing')
Architecture: amd64 (x86_64)

Kernel: Linux 2.6.32-5-amd64 (SMP w/8 CPU cores)
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                   3.112          add and remove users and groups
ii  libavahi-client3          0.6.27-2       Avahi client library
ii  libavahi-common3          0.6.27-2       Avahi common library
ii  libblkid1                 2.17.2-3.1     block device id library
ii  libc6                     2.11.2-6       Embedded GNU C Library: 
Shared lib
ii  libcap-ng0                0.6.4-1        An alternate posix 
capabilities li
ii  libdevmapper1.02.1        2:1.02.48-3    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  libnl1                    1.1-5          library for dealing with 
netlink s
ii  libparted0debian1         2.3-2          The GNU Parted disk 
partitioning s
ii  libpciaccess0             0.12.0-1       Generic PCI access library 
for X
ii  libreadline6              6.1-3          GNU readline and history 
libraries
ii  libsasl2-2                2.1.23.dfsg1-6 Cyrus SASL - authentication 
abstra
ii  libudev0                  160-1          libudev shared library
ii  libuuid1                  2.17.2-3.1     Universally Unique ID library
ii  libvirt0                  0.8.3-1        library for interfacing 
with diffe
ii  libxenstore3.0            4.0.1-1        Xenstore communications 
library fo
ii  libxml2                   2.7.7.dfsg-4   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               2.55-2        A small caching DNS proxy 
and DHCP
pn  gawk                       <none>        (no description available)
ii  iptables                   1.4.8-3       administration tools for 
packet fi
pn  libxml2-utils              <none>        (no description available)
ii  netcat-openbsd             1.89-4        TCP/IP swiss army knife
ii  qemu                       0.12.5+dfsg-2 fast processor emulator
ii  qemu-kvm                   0.12.5+dfsg-3 Full virtualization on x86 
hardwar

Versions of packages libvirt-bin suggests:
ii  policykit-1                   0.96-3     framework for managing 
administrat