Re: [hatari-devel] TT with 8 MHz crashing (with NVDI)

[Nicolas Pomarède <npomarede@xxxxxxxxxxxx>]

Le 02/09/2024 à 14:55, Uwe Seimet a écrit :
> > On Montag, 2. September 2024 13:29:48 CEST Uwe Seimet wrote:
> > > I doubt that NVDI behaves differently with 8 MHz than it does with 16 or 32,
> > > so this may be an issue with Hatari.
> >
> > There is definitely a _CPU check in all NVDI versions, however depending on
> > the Mhz would really be strange. Which NVDI version are you using?
>
> 5.0.3
>
> I have identified the commit that causes the crash:
>
> * 9dd63033 - Revert part of "Fast 68020+ modes didn't start pending interrupt im
> mediately" fix (from WinUAE 5.1.0+ 2023/12/29) only SR modifications must check
> interrupt immediately (8 months ago) <Nicolas Pomarède>
>
> With 14bcf9b0 and f437b8fd there is a bus error sometimes (only with 8 Mhz),
> but not the crash (4 bombs) I see with 9dd63033.
>
> 47f3ebbe never crashes.
>
> Best regards
>
> Uwe

ok, so that would maybe be an incomplete fix for the case in the commit 
message and it would trigger the error more easily at 8 MHz because of a 
race condition that makes it harder to see it usually at 32 MHz.