freebsd stable - Jul 2017 - Panic with FreeBSD 11.0-RC2 VM-IMAGE when starting vboxservice

With latest VM-IMAGE (vmdk) for 11.1-RC2 system panics.  I haven't been able
to process the panic completely, but the backtrace looks mysteriously similar to
those provided with PR219146.


Initially, the VM-IMAGE booted just fine.  The VM-IMAGE is then configured as a
VirtualBox client.  The panic occurs on subsequent reboots when attempting to
start vboxservice.


Additionally, during the custom configuration process, lsof hangs for more than
2 minutes each time that it is invoked.


Please let me know exactly what information is needed to correct this problem. 
I will be able to provide that information no later than Tuesday morning.


Thanks, in advance, for your assistance.


David Boyd.

El Sunday 09 de July a las 23:48:29 CEST, David Boyd
escribi?:
>With latest VM-IMAGE (vmdk) for 11.1-RC2 system panics.  I haven't been 
>able to process the panic completely, but the backtrace looks 
>mysteriously similar to those provided with PR219146.
>
>
>Initially, the VM-IMAGE booted just fine.  The VM-IMAGE is then 
>configured as a VirtualBox client.  The panic occurs on subsequent 
>reboots when attempting to start vboxservice.
>
>
>Additionally, during the custom configuration process, lsof hangs for 
>more than 2 minutes each time that it is invoked.
>
>
>Please let me know exactly what information is needed to correct this 
>problem.  I will be able to provide that information no later than 
>Tuesday morning.
>
Hi, I am also suffering this panic.

I use everyday my Windows 7 host Virtualbox with a FreeBSD guest. I 
upgraded from 11.0 -> 11.1-BETA1 -> 11.1-BETA2 -> 11.1-RC1 with no 
issues.

But after to upgrade to 11.1-RC2, the system panics just after to start 
vboxservice. I have disabled the service at boot in /etc/rc.conf, but it 
does not help: the system crashes just after "service vboxservice
start"
command.

You can get a full crash dump here:

https://pastebin.com/MkxS9GZn

At this moment, I am going to rebuild the virtualbox-ose-additions port 
(running 11.1-RC2) and I will let you know if there is some difference. 

Regards


-- 
Jos? G. Juanino