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Add a comment to the >16M and >64M entries for lying COMPAQ BIOSes.

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Peter da Silva 1997-05-13 22:01:50 +00:00
parent 47d8fbb519
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Notes: svn2git 2020-12-08 03:00:23 +00:00 
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FAQ/FAQ.sgml
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@ -1,12 +1,12 @@
<!DOCTYPE linuxdoc PUBLIC "-//FreeBSD//DTD linuxdoc//EN">
<!-- $Id: FAQ.sgml,v 1.53 1997-05-07 16:32:31 wosch Exp $ -->
<!-- $Id: FAQ.sgml,v 1.54 1997-05-13 22:01:50 pds Exp $ -->
<article>
<title>Frequently Asked Questions for FreeBSD 2.X
<author>Maintainer: Peter da Silva <tt><htmlurl url='mailto:pds@FreeBSD.ORG'
name='&lt;pds@FreeBSD.ORG&gt;'></tt>
<date>$Date: 1997-05-07 16:32:31 $</date>
<date>$Date: 1997-05-13 22:01:50 $</date>
<abstract>
This is the FAQ for FreeBSD systems version 2.X All entries are
@ -1012,7 +1012,9 @@ drivedata: 0
one or two broken EISA and VLB devices may need it as well).
Also look at the section on <ref id="reallybigram"
name="&gt;64M machines"> if you have that much memory.
name="&gt;64M machines"> if you have that much memory,
or if you're using a Compaq or other BIOS that lies about
the available memory.
<sect1>
<heading>I keep seeing messages like ``<tt/ed1: timeout/''.</heading>
@ -2799,7 +2801,9 @@ disk fd1 at fdc0 drive 1
Due to the manner in which FreeBSD gets the memory size from the
BIOS, it can only detect 16 bits worth of Kbytes in size (65535
Kbytes = 64MB). If you have more than 64MB, FreeBSD will only see
the first 64MB. To work around this problem, you need to use the
the first 64MB (or less... some BIOSes peg the memory size to 16M).
To work around this problem, you need to use the
kernel option specified below. There is a way to get complete
memory information from the BIOS, but we don't have room in the
bootblocks to do it. Someday when lack of room in the bootblocks
@ -2812,7 +2816,7 @@ disk fd1 at fdc0 drive 1
</tt>
Where <tt/n/ is your memory in Kilobytes. For a 128 MB machine,
you'd want to use <tt/131072/
you'd want to use <tt/131072/.
<sect1>
<heading>FreeBSD 2.0 panics with ``kmem_map too small!''</heading>