VirtualBox (sometimes) not starting/hanging after recent openssl updates

[Warren Block]

On Tue, 31 Mar 2015, Yuri wrote:

> On 03/30/2015 13:16, Ivo Karabojkov wrote:
>> I've explained my tests already to the thread you mention. Here is my
>> ldd output from a working system:
>> # ldd /usr/local/lib/virtualbox/VBoxRT.so
>
> I am nor sure if you still have issues with VirtualBox, but mix of openssl 
> libraries from base and port was the cause for me. This mix was introduced by 
> latest curl update.
> To fix this run (cd /usr/ports/ftp/curl && make config) and select GSSAPI to 
> be *not* from base. I chose 'heimdal' option. Then force rebuild/upgrade of 
> curl, and VirtualBox will likely work.

Rebuilding ftp/curl set to GSSAPI_NONE rather than GSSAPI_BASE worked! 
Both the Qt GUI and the CLI versions work again, and the VMs run.

Apparently there are a lot of different symptoms from this one problem.