Re: [Qemu-devel] Qemu deadlocks in tb_lock when using SVM+SoftMMU

[Alexander Boettcher]

Hello,

thank you for your effort.

With your patch I get now a 0x3f exception shown by the hypervisor,
which I have never encountered so far before. The guest kernel seems not
to start, at least no life sign is shown.

For me the patch of Paolo Bonzini works reliable.

How to proceed ?

Thanks,

Alex.

On 06.03.2017 17:24, Alex Bennée wrote:
> 
> Alexander Boettcher <address@hidden> writes:
> 
>> Hi,
> <snip>
>>
>> Sometimes Qemu just succeeds if the timing is well, will see.
>>
>> But this is not the point of this issue atm.
> 
> I've sent a patch that works as Richard suggested. However your test
> image seems to run into other issues. I have tested it on my known good
> x86 image and it works.
> 
> However my knowledge of x86's interrupt architecture is fairly minimal
> so I'm looking for testing/feedback on the patch.
> 
>>
>> Alex.
> 
> 
> --
> Alex Bennée
> 

-- 
Alexander Boettcher
Genode Labs

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