Troubles with VirtualBox 4.3.26

[Warren Block]

On Thu, 26 Mar 2015, Mario Lobo wrote:

> On Thu, 26 Mar 2015 10:29:51 -0600 (MDT)
> Warren Block <wblock at wonkity.com> wrote:
>
>> Anyone else having trouble with 4.3.26?
>>
>> Seems like I used VirtualBox very recently, but now it does not want
>> to run at all.  The GUI sometimes does not start, and VBoxManage is
>> similar.  'VBoxManage list vms' works maybe one in four times,
>> otherwise just hanging:
>>
>>    % VBoxManage list vms
>>    load: 0.04  cmd: VBoxManage 16522 [select] 7.77r 0.01u 0.00s 0%
>> 15460k load: 0.21  cmd: VBoxManage 16522 [select] 66.05r 0.01u 0.00s
>> 0% 15460k
>>
>> Occasionally, it claims to have started a VM, but the VM does not
>> actually start.  The GUI cannot start a VM:
>>
>>    Failed to open a session for the virtual machine winxp.
>>
>>    The virtual machine 'winxp' has terminated unexpectedly during
>> startup with exit code 1 (0x1).
>>
>>    Result Code: NS_ERROR_FAILURE (0x80004005)
>>    Component: Machine
>>    Interface: IMachine {480cf695-2d8d-4256-9c7c-cce4184fa048}
>>
>> VirtualBox has been built without the VNC and WEBSERVICE options.
>> Both the main port and -kmod were rebuilt after updating to -STABLE
>> today:
>>
>>    FreeBSD lightning 10.1-STABLE FreeBSD 10.1-STABLE #0 r280696: Thu
>> Mar 26 09:45:29 MDT 2015
>> root at lightning:/usr/obj/usr/src/sys/LIGHTNING  amd64
>>
>> My hunch is this is something with the latest -STABLE, and the next
>> tests will be to revert to a few days ago.
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>
> I have
>
> FreeBSD Papi 10.1-STABLE FreeBSD 10.1-STABLE #0 r278323M: Fri Feb  6
> 19:34:48 BRT 2015
>
> and
>
> pkg info | grep virtual
> virtualbox-ose-4.3.26          General-purpose full virtualizer for x86
> hardware virtualbox-ose-kmod-4.3.26     VirtualBox kernel module for
> FreeBSD
>
> and no problem whatsoever.

Still have the same problems with r278323 and other revisions between 
there and the latest.  No idea yet what's causing this.