| Re: [hatari-devel] Falcon demos tests : part 1 -> IDE segfault |
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- To: hatari-devel@xxxxxxxxxxxxxxxxxxx
- Subject: Re: [hatari-devel] Falcon demos tests : part 1 -> IDE segfault
- From: Thomas Huth <th.huth@xxxxxxxxx>
- Date: Sun, 1 Nov 2020 07:52:59 +0100
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Am Tue, 27 Oct 2020 22:21:10 +0100
schrieb Nicolas Pomarède <npomarede@xxxxxxxxxxxx>:
> Le 27/10/2020 à 00:12, Eero Tamminen a écrit :
>
> >
> >> Motion : no change
> >
> > "Torus" works now fine.
> >
> > Only "Susie" doesn't work, it's now stuck
> > executing these instructions:
> > $00016690 : btst #0,$fffffc00.w 50.00%
> > $00016696 : beq.s $16690 50.00%
> >
> > Nicolas, any ideas what could be the problem?
>
> Hi
>
> when I try to test this demo, I get a segfault accessing the ide
> registers.
>
> I run :
> hatari -s 4 --tos tos404.img ~/MOTION/PRECOMPI.LED/SUSIE.PRG
>
> Then hatari crashes after TOS tests the memory at boot.
>
> In my config, I don't have any IDE/ASCI/SCSI drive defined.
>
> This is the backtrace from gdb :
>
> Thread 1 "hatari" received signal SIGSEGV, Segmentation fault.
> 0x00000000005f6760 in Ide_Mem_bget ()
> (gdb) bt
> #0 0x00000000005f6760 in Ide_Mem_bget ()
> #1 0x0000000000690e74 in wait_cpu_cycle_read_ce020 ()
> #2 0x000000000065a487 in mem_access_delay_byte_read_ce020 ()
> #3 0x000000000065836d in get_byte_dc030 ()
> #4 0x0000000000b8672e in op_4a39_23_ff ()
> #5 0x000000000066f5c3 in m68k_run_2ce ()
> #6 0x0000000000669ab2 in m68k_go ()
> #7 0x00000000005bc998 in main ()
>
> Seems the IDE registers handling is not correctly fixed yet ?
I assume this only happened if the default machine in your hatari.cfg
was not a falcon, and Hatari prompted you with the "TOS version 4.04
is for Atari Falcon only. ==> Switching to Falcon mode now." dialog? At
least that was the only way how I could reproduce a crash with your
command line.
The problem is that during the first Ide_Init(), the machine type is
still a non-Falcon machine, so Ide_Init() skips the initialization.
Then the machine type is switched to Falcon mode, but we did not call
Ide_Init() again. Fixed now, at least with a fix that should be good
enough for the next release. In the long run, we should maybe consider
to call Change_CopyChangedParamsToConfiguration() from
TOS_CheckSysConfig() instead, but that's certainly not something I want
to change at this point in time.
Thomas