[syslinux] MEMDISK reset computer with NW Client32

[H. Peter Anvin]

Petr Olivka wrote:
> Hi!
> 
>   I have problem with MEMDISK, because when I load modules in NW Client32 
> using NIOS.EXE commands, computer is restarted :-( Not everytime, but 
> manytimes.
> 
>   The problem is with MSDOS 5.0, 6.22 and FreeDOS too. 
> 
>   But when I create in DOS another RAMDISK and copy all data from MEMDISK 
> to new RAMDISK and change settings and PATH to new ramdisk, all work fine.
> Directly from floppy or from HD all work fine too. But two ramdisk is not 
> good situation.
> 
>   Does anybody have some experiences, how to debug this problem? I hope, i 
> will be certainly some little error in asm. 
> 

The best way I've found to debug these classes of programs is to load it 
in a simulator like Bochs and Qemu, and reproduce the bug there.  Then 
you have full visibility.

If it *doesn't* reproduce there, then you at least know it's a 
hardware-specific thing.  Then I've had some limited success tracing 
through the program under Turbo Debugger (a DOS debugger from Borland), 
since you can get DOS up and running at least.

	-hpa