Virtualbox deadlocks on starting guest

[hiren panchasara]

On Sun, Jul 7, 2013 at 11:45 PM, Bernhard Fröhlich <decke at freebsd.org> wrote:
> I would start by updating to the latest virtualbox version and please
> make sure that the
> virtualbox-ose-kmod port is compiled with DEBUG option enabled. This
> will add debugging
> symbols to the kernel module.
> Then it would be good to obtain a kernel stacktrace via a kernel
> crashdump or break to the
> kernel debugger when the deadlock happens. Probably you need to
> recompile your kernel
> with those debugging knobs:
>
> http://www.freebsd.org/doc/en/books/developers-handbook/kerneldebug-deadlocks.html
>
> Btw do you run BHyVe and VirtualBox on the same machine? This sounds
> like the beginning
> of lot's of problems. You could try to unload all byhve kernel modules
> and see if the
> problem still persists after that.

wow, so I guess that was it.

unloading vmm.ko and if_tap.ko "fixed" it for me :-)

Why would it be that way?

Thanks a ton,
Hiren
>
>
> On Mon, Jul 8, 2013 at 5:14 AM, hiren panchasara
> <hiren.panchasara at gmail.com> wrote:
>> Anyone? any pointers to debug this?
>>
>> cheers,
>> Hiren
>>
>> On Sat, Jul 6, 2013 at 12:28 PM, hiren panchasara
>> <hiren.panchasara at gmail.com> wrote:
>>> Hi all,
>>>
>>> I have:
>>>
>>> flymockour-l7% uname -a
>>> FreeBSD flymockour-l7.corp.yahoo.com 10.0-CURRENT FreeBSD 10.0-CURRENT
>>> #4 r252757M: Thu Jul  4 23:06:03 PDT 2013
>>> root at flymockour-l7.corp.yahoo.com:/usr/obj/usr/home/hirenp/head/sys/GENERIC
>>>  amd64
>>> flymockour-l7%
>>> flymockour-l7% pkg info | grep -i virtualbox
>>> virtualbox-ose-4.2.14_1        A general-purpose full virtualizer for
>>> x86 hardware
>>> virtualbox-ose-kmod-4.2.14     VirtualBox kernel module for FreeBSD
>>> flymockour-l7%
>>> flymockour-l7% groups
>>> wheel operator vboxusers fuse
>>>
>>> flymockour-l7% kldstat | grep -i vbox
>>> 12    1 0xffffffff82a60000 519b8    vboxdrv.ko
>>> flymockour-l7% kldstat | grep -i vmm
>>> 11    1 0xffffffff828dd000 182c50   vmm.ko
>>> flymockour-l7%
>>>
>>> I start virtualbox as myself (not root) from cli and whenever I try to
>>> launch any guest (be it freebsd, ubuntu or windows) laptop deadlocks
>>> right away and I have to hard reset.
>>>
>>> This has been happening for many months but now I have decided to sit
>>> down and fix it.
>>>
>>> I believe I am missing something simple as I do not see any other such reports.
>>>
>>> cheers,
>>> Hiren
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