Panic with vboxnet drivers

[Sean C. Farley]

On Wed, 23 Sep 2009, Juergen Lock wrote:

> In article <alpine.BSF.2.00.0909221337580.13791 at thor.farley.org> you write:
>> While I have had no trouble with two systems running with the tap 
>> patch, I am experiencing some lockups when using the vboxnet* 
>> drivers.
>>
>> I have five witness logs (attached):
>> 1. The first one appeared when I tried to run VirtualBox with
>>    vboxnetadp loaded via loader.conf.  VirtualBox will not be able to
>>    find the VirtualBox network drivers this way, so I unloaded and
>>    loaded vboxnetadp from the command line for the following logs.
>> 2. The next three logs are LOR's (sleepable after non-sleepable)
>>    concerning VirtualBox's "IPRT Fast Mutex Semaphore" which is an
>>    sx.  I am not sure I am reading the backtrace correctly.  It looks
>>    like the call to RTSemFastMutexRequest(), which calls sx_xlock(),
>>    is  the effect.  I just do not know where the cause, i.e.,
>>    RTSemFastMutexRequest(), is being called.
>> 3. The last log is a LOR, but it may not be related to VirtualBox.
>> [...]
>
> It seems the attachments got stripped...

Oops.  I think I forgot to attach them.  :)

Here they are now:  http://people.freebsd.org/~scf/vb-witness.log

Sean
-- 
scf at FreeBSD.org