Re: How to lock up a VirtualBox host machine with a guest using tracepath over virtio-net network interface

[Źmicier Januszkiewicz <gauri () tut by>]

Well, I cannot reproduce the issue on 4.2.14, but there is nothing in
change logs for that version that can be related to virtio-net. They might
have done a silent fix for 4.1.x branch as well.

Cheers,
Z.


2013/6/27 Nick Boyce <nick.boyce () gmail com>

> On 6/21/13, Thomas Dreibholz <dreibh () simula no> wrote:
>
> > I have discovered a problem with the VirtualBox virtio-net network driver
> > that leads to a lockup of the host machine's kernel and the need for a
> > hard reset to make it working again. The bug had been reported to the
> > VirtualBox bug tracker 8 days ago
> > (https://www.virtualbox.org/ticket/11863), with the usual reaction from
> > Oracle support (i.e. none).
>
> FWIW: *not* confirmed for :
> 64-bit Linux host = Debian Squeeze 6.0.7 amd64
> 32-bit Linux guest = Debian Squeeze 6.0.7 i386
> VirtualBox = 4.1.26 (guest network adapter set to virtio for the test)
>
> '$ tracepath 8.8.8.8' run in the guest works fine, and no unpleasant
> effects are noticed on either host or guest.
>
> I note that VirtualBox 4.1.26 (latest update to 4.1 series) was
> released on the same day as 4.2.14 (latest update to 4.2 series) -
> specifically 21st.June.2013 - which happens to be the same day you
> reported the problem here after getting apparently zero response from
> Oracle Support for 8 days.  Maybe they just silently fixed the bug
> during those 8 days - in which case they should have had the manners
> to let you know.
>
> Cheers
> Nick Boyce
> --
> I can't watch TV longer than five minutes without praying for nuclear
> holocaust ~~ Bill Hicks
>
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