Re: [hatari-devel] Hatari Falcon emulation segfault with EmuTOS

[Eero Tamminen <oak@xxxxxxxxxxxxxx>]

Hi,

On maanantai 20 helmikuu 2012, Laurent Sallafranque wrote:
> I haven't got this problem actaully with tos 4.02 fr and 68030 cycle
> exact.
>
> This demo is one of the timing sensitive ones.
> 
> I've done many tests with it where I had the illegal DMA sound problem,

And segfault?


> but with the current timings, I haven't got it.
> (But the demo freezes while displaying the gouraud fruits).

Please try with latest EmuTOS (which doesn't implement the OS
DSP or sound matrix XBios functions):
  http://sourceforge.net/projects/emutos/files/snapshots/CVS-20120219/

Emulator needs to be robust against badly working emulated programs.


	- Eero

> I think it'll become better in time when I have some time to continue to
> add the correct falcon timings.
> 
> Regards
> 
> Laurent
> 
> Le 19/02/2012 21:27, Eero Tamminen a écrit :
> > Hi,
> > 
> > I got Hatari segfault both with new and old CPU cores when
> > trying to run EKO's system demo with latest EmuTOS snapshot.
> > 
> > hatari --bios-intercept --trace xbios --fast-forward yes --tos
> > emutos-512k- CVS-20120208/etos512k.img --machine falcon
> > eko_syst.em/system.prg
> > 
> > Autostart file 'C:\EMUDESK.INF' for 'SYSTEM.PRG' matched.
> > Autostart file removed.
> > XBIOS 89 (VgetMonitor)
> > A-Trap a00a at 3b7b0 (0x85f3870)
> > XBIOS 2 (Physbase)
> > XBIOS 88 VsetMode(0xffff)
> > XBIOS 88 VsetMode(0xffff)
> > XBIOS 130 (Soundcmd)
> > XBIOS 130 (Soundcmd)
> > XBIOS 130 (Soundcmd)
> > XBIOS 139 (Devconnect)
> > XBIOS 135 (Setinterrupt)
> > XBIOS 37 (Vsync)
> > XBIOS 130 (Soundcmd)
> > XBIOS 130 (Soundcmd)
> > XBIOS 130 (Soundcmd)
> > XBIOS 139 (Devconnect)
> > XBIOS 135 (Setinterrupt)
> > XBIOS 37 (Vsync)
> > XBIOS 37 (Vsync)
> > <longish wait>
> > crossbar DMA Play: Illegal buffer size (from 0x0fde14 to 0x0fdde8)
> > XBIOS 37 (Vsync)
> > XBIOS 109 (Dsp_ExecProg)
> > Segmentation fault
> > 
> > With the old core the segfault happens a bit earlier after
> > the crossbar message.
> > 
> > 
> > Segfault happens also without fast-forward (or tracing), but it of
> > course takes then a long time to happens.
> > 
> > 	- Eero