Re: [Qemu-devel] tcg/tcg.c:1892: tcg fatal error

[Igor Kovalenko]

On Mon, Apr 11, 2011 at 9:53 PM, Artyom Tarasenko <address@hidden> wrote:
>
> Can do it, but I'd like to understand first what we are looking for.
> How does the main works in this case? Is it something like following?
>
> translate {brz,pn ; wrpr} -> optimize -> execute ->translate {retl ;
> ...} ->optimize -> execute.
>
> The subject error is a tcg error, so it is happening in one of the two
> translate/optimise phases drawn above, right?
> So, why are we looking at the wrpr helper code?

Because you asked about alternate globals :)

>> Do you have public test case?
>> It is possible to code this delay slot write test but real issue may
>> be corruption elsewhere.
>
> You assume ts->val_type gets corrupted? But then it must happen before
> the wrpr helper call, or actually before the  translation of {brz,pn ;
> wrpr} block, no?

In theory there could be multiple issues including compiler induced ones.
I'd prefer to see some kind of reproducible testcase.

-- 
Kind regards,
Igor V. Kovalenko