Hi Neel,

On Mon, Feb 24, 2014 at 05:40:38PM -0800, Neel Natu wrote:
> Hi Paul,
> 
> On Sun, Feb 23, 2014 at 7:57 AM, Paul Schenkeveld <free...@psconsult.nl> 
> wrote:
> > Hi,
> >
> > I tried to get bhyve to run on my home server but got consistent
> > crashes as soon as I touch the network.
> >
> > Hardware: Supermicro X9SPV-F3610ME-O (embedded i5) with 16GB RAM
> >
> > Host kernels (+userland of the same version):
> >         10.0 RC5
> >         10.0 RELEASE
> >         10 STABLE
> >
> > The kernel has been stripped (unneeded drivers and stuff like DEBUG,
> > AUDIT, CAPABILITIES, MAC removed)
> >
> > Guest operating systems:
> >         9.2 RELEASE
> >         10.0 RELEASE
> >
> > Procedure:
> >         # ifconfig tap0 create up
> >         # ifconfig bridge0 create up
> >         # ifconfig bridge0 addm tap0 addm em0
> >         # kldload vmm
> >         # mkdir /vm/test
> >         # cd /vm/test
> >         # ln -s /images/FreeBSD-10.0-RELEASE-amd64-disc1.iso release.iso
> >         # sh vmrun.sh -c 1 -m 512 -t tap0
> >
> >         <do a default install, no games/ports, IPv4 DHCP, no IPv6>
> >         <add 'console "/usr/libexec/getty std.9600" unknown on secure' to
> >          /etc/ttys>
> >         <add 'ifconfig_vtnet0="DHCP"' to /etc/rc.conf>
> >         <reboot guest>
> >
> > At the point where DHCP sends the first query I get a segmentation fault
> > and the guest stops.
> >
> > I can provoke the same segfault by not putting the DHCP line into
> > rc.conf and trying to ifconfig vtnet0 or by adding tap0 to bridge0 in
> > the host after the guest has stopped.
> >
> > Although it worked perfectly fine with bhyve a couple of months ago
> > (with an older build of 10.0-CURRENT that I don't have here anymore), I
> > suspected the hardware and tried the same on my Macbook Pro with Vmware
> > Fusion with a 10.0 RELEASE guest.
> >
> > The stripped 10 STABLE guest segfaults in the same way, the other two
> > both work.
> >
> > I bought the home server for building software for older releases
> > (mostly FreeBSD 8 and 9), my Macbook with Fusion is too slow and often
> > in use for other purposes.
> >
> > Is this behaviour seen by others?
> >
> > I can provide more details or core dumps if that helps locating/solving
> > the problem.
> >
> 
> I am not clear about what exactly is segfaulting: is it the bhyve
> process or the guest kernel? Do you have a screenshot and/or a
> backtrace of the segfaulting entity?

It looks like it's the bhyve process.  I'm travelling at the moment,
if can get to the machine from the hotel I'll try and send you a
screen shot tonight, otherwise when I'm back at the end of the week.

Thank you.

> best
> Neel

With kind regards,

Paul Schenkeveld
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