[Pkg-libvirt-maintainers] Bug#732229: Bug#732229: libvirt-bin: Use of macvtap (via virt-manager interface) results in XP guest dieing with not warning on network activity

[Guido Günther]

On Sun, Dec 15, 2013 at 03:40:30PM -0500, Daniel Dickinson wrote:
> Package: libvirt-bin
> Version: 0.9.12-11+deb7u4
> Severity: normal
> 
> Using macvtap (configured via virt-manager and resulting in the xml below), results in an XP guest terminating abruptly, with no warning, on attempts to access windows update or even just browse http://mozilla.org
> 
> Ping and DHCP seem to work, so really small amounts of network activity aren't enough to trigger the bug.
> 
> The VM dies quite thoroughly so it might be an underlying qemu-kvm issue with the macvtap device (qemu-kvm used it like a tun/tap devices, perhaps there is a mismatch between the expected API/ABI).
> 
> XML: This is the only part that is different from an working NAT network interface guest VM
> 
>     <interface type='direct'>
>       <mac address='52:54:00:6a:ae:53'/>
>       <source dev='eth2' mode='bridge'/>
>       <model type='pcnet'/>
>       <address type='pci' domain='0x0000' bus='0x00' slot='0x0b' function='0x0'/>
>     </interface>

This looks more like a qemu problem. Check the VMs log as suggested in
the debugging help.
Cheers,
 -- Guido

> 
> -- System Information:
> Debian Release: 7.2
>   APT prefers stable-updates
>   APT policy: (500, 'stable-updates'), (500, 'stable')
> Architecture: amd64 (x86_64)
> Foreign Architectures: i386
> 
> Kernel: Linux 3.2.0-4-amd64 (SMP w/8 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 libvirt-bin depends on:
> ii  adduser             3.113+nmu3
> ii  gettext-base        0.18.1.1-9
> ii  libavahi-client3    0.6.31-2
> ii  libavahi-common3    0.6.31-2
> ii  libblkid1           2.20.1-5.3
> ii  libc6               2.13-38
> ii  libcap-ng0          0.6.6-2
> ii  libdbus-1-3         1.6.8-1+deb7u1
> ii  libdevmapper1.02.1  2:1.02.74-8
> ii  libgcrypt11         1.5.0-5+deb7u1
> ii  libgnutls26         2.12.20-7
> ii  libnetcf1           0.1.9-2
> ii  libnl1              1.1-7
> ii  libnuma1            2.0.8~rc4-1
> ii  libparted0debian1   2.3-12
> ii  libpcap0.8          1.3.0-1
> ii  libpciaccess0       0.13.1-2
> ii  libreadline6        6.2+dfsg-0.1
> ii  libsasl2-2          2.1.25.dfsg1-6+deb7u1
> ii  libudev0            175-7.2
> ii  libvirt0            0.9.12-11+deb7u4
> ii  libxenstore3.0      4.1.4-3+deb7u1
> ii  libxml2             2.8.0+dfsg1-7+nmu2
> ii  libyajl2            2.0.4-2
> ii  logrotate           3.8.1-4
> 
> Versions of packages libvirt-bin recommends:
> ii  bridge-utils    1.5-6
> ii  dmidecode       2.11-9
> ii  dnsmasq-base    2.62-3+deb7u1
> ii  ebtables        2.0.10.4-1
> ii  gawk            1:4.0.1+dfsg-2.1
> ii  iproute         20120521-3+b3
> ii  iptables        1.4.14-3.1
> ii  libxml2-utils   2.8.0+dfsg1-7+nmu2
> ii  netcat-openbsd  1.105-7
> ii  parted          2.3-12
> ii  qemu            1.1.2+dfsg-6a
> ii  qemu-kvm        1.1.2+dfsg-6
> 
> Versions of packages libvirt-bin suggests:
> ii  policykit-1  0.105-3
> ii  radvd        1:1.8.5-1
> 
> -- Configuration Files:
> /etc/libvirt/qemu.conf [Errno 13] Permission denied: u'/etc/libvirt/qemu.conf'
> 
> -- no debconf information
> 
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