| Re: [hatari-devel] TT with 8 MHz crashing (with NVDI) |
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- To: hatari-devel@xxxxxxxxxxxxxxxxxxx
- Subject: Re: [hatari-devel] TT with 8 MHz crashing (with NVDI)
- From: Uwe Seimet <Uwe.Seimet@xxxxxxxxx>
- Date: Mon, 2 Sep 2024 15:04:13 +0200
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I'm not sure whether this is relevant, but I get this crash with and without
fast-forward mode.
> 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.
>
>