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Fall back to previous memory segments detection code if BIOS reports no 

correct memory segment.
This prevents some systems from losing with `can't find end of memory'.
Discussed with Bill Sommerfeld.
This commit is contained in:
aymeric 2000-11-29 09:56:02 +00:00
parent 3c1b8a2b35
commit 5deecf29d2
1 changed files with 8 additions and 2 deletions
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10
sys/arch/i386/i386/machdep.c
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@ -1,4 +1,4 @@
/* $NetBSD: machdep.c,v 1.420 2000/11/22 16:41:56 jdolecek Exp $ */
/* $NetBSD: machdep.c,v 1.421 2000/11/29 09:56:02 aymeric Exp $ */
/*-
* Copyright (c) 1996, 1997, 1998, 2000 The NetBSD Foundation, Inc.
@ -1922,7 +1922,13 @@ init386(first_avail)
physmem += atop(mem_clusters[mem_cluster_cnt].size);
mem_cluster_cnt++;
}
} else {
}
/*
* If the loop above didn't find any valid segment, fall back to
* former code.
*/
if (mem_cluster_cnt == 0) {
/*
* Allocate the physical addresses used by RAM from the iomem
* extent map. This is done before the addresses are