[Pkg-virtualbox-devel] Bug#681883: virtualbox: Host to Guest network communications intermittent with rt kernel

[Paul Gammans]

Package: virtualbox
Version: 4.1.18-dfsg-1
Severity: normal


Virtual box drops/looses packets between host and guest network interfaces.


The guest can happly ping both the hosts vboxnet0 interface and the hosts external eth0 interface
address without packet loss.
The host has 90+% packet loss when ping the guest's ip.


The virtual guest is set to use host-only-networking this has been working for some time in
this configuration without issue. This was until I upgraded to the latest kernel image and at the same time
decided to try the RT versions.

This occures when using the RT kernel using linux-image-3.2.0-3-rt-amd64
but works normally with the non RT versions of the same kernel ie linux-image-3.2.0-3-amd64

I am using virtualbox-dkms to build the kernel modules

Let me know if you need me to test anything or more info.

Paul


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

Kernel: Linux 3.2.0-3-amd64 (SMP w/2 CPU cores)
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages virtualbox depends on:
ii  adduser          3.113+nmu3
ii  dpkg             1.16.4.3
ii  libc6            2.13-33
ii  libcurl3         7.26.0-1
ii  libgcc1          1:4.7.1-2
ii  libgsoap2        2.8.7-1
ii  libpng12-0       1.2.49-1
ii  libpython2.7     2.7.3~rc2-2.1
ii  libsdl1.2debian  1.2.15-5
ii  libssl1.0.0      1.0.1c-3
ii  libstdc++6       4.7.1-2
ii  libvncserver0    0.9.9+dfsg-1
ii  libx11-6         2:1.5.0-1
ii  libxcursor1      1:1.1.13-1
ii  libxext6         2:1.3.1-2
ii  libxml2          2.8.0+dfsg1-4
ii  libxmu6          2:1.1.1-1
ii  libxt6           1:1.1.3-1
ii  python           2.7.3~rc2-1
ii  python2.7        2.7.3~rc2-2.1
ii  zlib1g           1:1.2.7.dfsg-13

Versions of packages virtualbox recommends:
ii  libgl1-mesa-glx [libgl1]  8.0.3-1
ii  libqt4-opengl             4:4.8.2-1
ii  libqtcore4                4:4.8.2-1
ii  libqtgui4                 4:4.8.2-1
ii  virtualbox-dkms           4.1.18-dfsg-1
ii  virtualbox-qt             4.1.18-dfsg-1
ii  virtualbox-source         4.1.18-dfsg-1

Versions of packages virtualbox suggests:
ii  vde2                            2.3.2-4
ii  virtualbox-guest-additions-iso  4.1.18-1

-- no debconf information