On Thu, Sep 26, 2013 at 3:20 PM, Hu Yaohui <loki2...@gmail.com> wrote:

>
>
> On Thu, Sep 26, 2013 at 3:07 PM, Jan Kiszka <jan.kis...@web.de> wrote:
>
>> On 2013-09-26 20:53, Hu Yaohui wrote:
>> > Hi Jan,
>> > I am working on some Nested VM related projects. Some other teammates
>> have
>> > made the modifications to the kvm module.
>>
>> And these modifications cannot cause the misguided INT3?
>>
> No
>
>>
>> > Most of my work depends on his.
>> > If I could not use Qemu Debug method. Could you please suggest some
>> other
>> > debugging methods to debug the L2 guest OS(printk, hijack kernel
>> function,
>> > or something else)?
>>
>> Remove L0 while debugging L2 and, once it works, move L1/L2 back over
>> L0? Your setup seems to be pretty special with (for us) unknown
>> requirements, so it's hard to suggest what to do best.
>>
>> I will try that.
>
When I remove L0 while debugging L2, it works, but When I move it back, it
failed with the same error message in L2 guest. Thank you Jan! I will
figure out some other methods to overcome this hurdle.

>
>
>> In any case, you seem to be pretty much "off-track" and may either have
>> to stabilize the whole stack on your own, possibly back-porting
>> essential nVMX fixes from latest versions, or rebase & share your
>> changes so that we can help again.
>>
>> Thank you!
>
>> Jan
>>
>>
>>
>

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