Re: Possible workaround for buggy E801 call in 2.2.x

Prashant TR (prashant_tr@yahoo.com)
Tue, 21 Dec 1999 22:18:14 +0530

> One of the FIC slot-1 motherboards of recent vintage has exactly
> that (the VB-601; I can't say the vintage of the bios, because
> all the VB-601's I administer are parked about 4 miles north of
> me right now.) That's what provoked the e820 implementation in
> the first place -- e801 would tell me I had half a gig, 88 would
> tell me 64mb, and e820 returns a memory map containing the correct
> 128mb of system ram.

If the E820 returns the memory addresses and if they happen to be
in increasing order without an overlap, this should be quite sufficient
to make sure if the call is correctly supported (not broken). But doing
this can be quite a problem and would add unnecessary code.

If we were talking of having any options disabled by default, then I
guess it should be the E801 call (considering the frequency of errors
of E820 and E801).

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