[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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