[syslinux] MEMDISK and Doc Memory

H. Peter Anvin hpa at zytor.com
Mon Feb 19 14:35:56 PST 2007


Duke McAllister wrote:
> 
> I have one observation and potential bug to report.  For years, 
> I've had a certain boot floppy I use for diagnostic work.  It's 
> a WIN98 boot floppy incl Doc Memory, the RAM diagnostic.  Unfortunately,
> the ever-reliable Doc Memory will not boot from a floppy image 
> loaded by MEMDISK.  It simply crashes.  During testing under VMWare, 
> it starts testing RAM, but it begins by checking a very high range of 
> RAM addresses and almost immed crashes w/ a stack fault.  When 
> booting normally, the program locks immed upon engaging the RAM 
> test sequence.
> 

Sounds like your Doc Memory overwrites MEMDISK, by touching memory it 
shouldn't be.

	-hpa




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