Re: [hatari-devel] Problem with ACSI/DMA: Command is not executed

[Eero Tamminen <oak@xxxxxxxxxxxxxx>]

Hi,

On perjantai 11 lokakuu 2013, Uwe Seimet wrote:
> I'm wondering whether the TEST UNIT READY command is working properly.
> 
> When I use it several times Hatari crashes with a segmentation fault. I
> turned the ACSI debug output on and noticed that Hatari does not report
> that this command was received by the emulation at all. My guess is that
> this has to do with the fact that no (DMA) data are transferred with
> this command, i. e. setting up the DMA start address is not required.
>
> Does Hatari rely on the DMA start address to be always set (even when
> there is no DMA) before an ACSI command is executed by the emulation? The
> transfer should start as soon as the last command byte was written, even
> when no DMA address is set, but this does not seem to be the case. Maybe
> somebody else can provide details on how Hatari handles this?

Regardless of what the emulated code does, Hatari should not crash.
Could you provide backtrace of the crash and "info locals" output?


	- Eero