[vbox-dev] Cannot debug linux kernel with VBox 4.3+

Aaron Lewis the.warl0ck.1989 at gmail.com
Sun Jan 12 02:06:13 GMT 2014


If I don't attach gdb to the remote serial port, the dialog won't pop up.

And I can see the kernel panic in VBoxGUI.

On Sun, Jan 12, 2014 at 10:04 AM, Aaron Lewis
<the.warl0ck.1989 at gmail.com> wrote:
> No, Nested-Paging is disabled, and I still see the dialog popsup
>
> On Fri, Jan 10, 2014 at 10:19 PM, Ramshankar
> <ramshankar.venkataraman at oracle.com> wrote:
>> On 08/01/14 06:46, Aaron Lewis wrote:
>>>
>>> Hi Frank,
>>>
>>> The CPU model is:  Intel(R) Core(TM) i5-2450M CPU @ 2.50GHz
>>>
>>> And yes I have VT-x enabled.
>>>
>>> The VBox.log is uploaded here: http://paste.ubuntu.com/6713174/
>>
>>
>> Does disable Nested Paging for the VM mitigate/workaround the issue?
>>
>> Regards,
>> Ram.
>>
>>
>>>
>>> On Tue, Jan 7, 2014 at 5:37 PM, Frank Mehnert <frank.mehnert at oracle.com>
>>> wrote:
>>>>
>>>> AAron,
>>>>
>>>> On Tuesday 31 December 2013 08:29:44 Aaron Lewis wrote:
>>>>>
>>>>> I couldn't use kgdb to debug a linux kernel running inside VBox.
>>>>>
>>>>> When the kernel crashes, VBox pops up a dialog asking me either to
>>>>> Ignore the error or Close the VM. The former does no work, and the
>>>>> whole thing freezes up
>>>>
>>>>
>>>> do you have VT-x / AMD-V enabled for this VM and is this feature
>>>> really used (VBox.log file)? And are you on Intel or on AMD? I know
>>>> there were some VMM changes / fixes regarding debug exceptions.
>>>>
>>>> Kind regards,
>>>>
>>>> Frank
>>>> --
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>>>
>>>
>>>
>>
>
>
>
> --
> Best Regards,
> Aaron Lewis - PGP: 0x13714D33 - http://pgp.mit.edu/
> Finger Print:   9F67 391B B770 8FF6 99DC  D92D 87F6 2602 1371 4D33



-- 
Best Regards,
Aaron Lewis - PGP: 0x13714D33 - http://pgp.mit.edu/
Finger Print:   9F67 391B B770 8FF6 99DC  D92D 87F6 2602 1371 4D33




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