VirtualBox hangs on FreeBSD 10-stable and then reports error

[Tobias Kortkamp]

On 05/13/2015 14:57, Graham Menhennitt wrote:
> I've been successfully running VirtualBox for some time. Last week I
> updated my /usr/src/ and /usr/ports, built & installed world and kernel,
> and did portupgrade -a. Now VirtualBox won't start - it doesn't even
> show the window with the list of VMs. I've tried as root and as myself.
> I've also tried removing my .virtualbox directory. kldstat shows
> vboxdrv.ko is loaded. I've rebooted after building and installing
> everything.
> 
> I've run it in truss as root and the bzipped output file is at
> http://menhennitt.com.au/truss.bz2. It runs for a few seconds and then
> gets to the point in the truss output (around line 2890) where it does
> the stuff shown below. It repeats the last poll() line at 5 second
> intervals for about 5 minutes. It then shows a dialog:
>     Failed to create the VirtualBox COM object.
>     The application will now terminate.
>     Callee RC: NS_ERROR_FACTORY_NOT_REGISTERED (0x80040154)
> When I click Ok in the dialog, it exits.
> 
> It's virtualbox-ose-4.3.26 and virtualbox-ose-kmod-4.3.26 on FreeBSD
> 10-stable from last week on amd64.
> 
> Does anybody please have any clues?
> 
> Thanks,
>     Graham

Hi Graham,

see this thread on the forums:
https://forums.freebsd.org/threads/virtualbox-4-3-26-wont-start.51341/