[vbox-dev] Regarding about the Pause function in Virtualbox SDK

[Frank Mehnert]

On Monday 10 January 2011 11:14:36 John Lee wrote:
> On 2011-01-10 오후 7:07, Frank Mehnert wrote:
> > On Monday 10 January 2011 10:55:49 John Lee wrote:
> >> On 2011-01-10 오후 6:32, Frank Mehnert wrote:
> >>> John,
> >>> 
> >>> On Monday 10 January 2011 10:04:41 John Lee wrote:
> >>>> On 2011-01-10 오후 5:45, Klaus Espenlaub wrote:
> >>>>> On 10.01.2011 08:25, John Lee wrote:
> >>>>>> Hello,
> >>>>>> 
> >>>>>> I'm having a problem with the Pause function within the Virtualbox
> >>>>>> SDK 4.0.
> >>>>>> 
> >>>>>> I'm using the same code that I used to test the VM via Virtualbox
> >>>>>> SDK 3.2 but it seems like I'm having a trouble with the
> >>>>>> Pause/PowerDown with the new SDK.
> >>>>>> 
> >>>>>> The problem I'm facing is that whenever I call either
> >>>>>> Pause/PowerDown while the VM is running, the application that I'm
> >>>>>> running presents the seg fault message.
> >>> 
> >>> Please have a look at the VBox.log file. Do you have sound enabled for
> >>> that VM? Does the sound backend initialize properly or do you see any
> >>> warnings regarding sound during initialization? You could also disable
> >>> sound for the VM and try again. There is a known 4.0 bug which could
> >>> lead to a SEGFAULT under these conditions.
> >> 
> >> I have disabled the sound and vice versa but somehow that didn't solve
> >> the problem. I have tried to looked up the VBox.log file but somehow
> >> could not locate the file.
> >> 
> >> I have also disable the virtualization acceleration in case there is a
> >> problem but still the problem remains unsolvable.
> >> 
> >> Is there any possible way to fix the problem?
> > 
> > The VBox.log file can be displayed by opening the VM manager window and
> > choosing Machine / Show Log ...
> > 
> > Does the VM also crash when you pause the VM using the GUI?
> 
> No, the VM does not crash. Only the source code displays the seg fault
> message.
> 
> When I use the GUI, the VM pause/turns off normally. However, by using
> the SDK, the problem is still remains.

Hmm, but you are using the C binding, do you? In that case that might
be the reason because AFAIR the C bindings are kind of orphaned. Could
you check if the same crash happens if you are using the C++ bindings?

Kind regards,

Frank
-- 
ORACLE Deutschland B.V. & Co. KG   Dr.-Ing. Frank Mehnert
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