Bug 21572 - Write allocate/MTRR's not enabled for K6-2+
Summary: Write allocate/MTRR's not enabled for K6-2+
Keywords:
Status: CLOSED CURRENTRELEASE
Alias: None
Product: Red Hat Linux
Classification: Retired
Component: kernel
Version: 6.2
Hardware: i586
OS: Linux
low
medium
Target Milestone: ---
Assignee: Michael K. Johnson
QA Contact: Brock Organ
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2000-12-01 07:00 UTC by John Gotts
Modified: 2007-03-27 03:37 UTC (History)
0 users

Fixed In Version:
Clone Of:
Environment:
Last Closed: 2002-12-15 04:06:14 UTC
Embargoed:

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Description John Gotts 2000-12-01 07:00:29 UTC 
2.2.16 doesn't enable write allocate or MTRR's for machines with the K6-2+
processor.  Write allocate is cited as an important performance item to
enable on the various motherboard related newsgroups.  Many people are
installing K6-2+'s on boards that support the chip's electrical
requirements but don't adequately set it up in the BIOS.  New laptops
appearing on the market that contain this chip may or may not have the same
problem.  My patch is tiny and was extracted from 2.2.18pre.  My source RPM
is at http://linuxsavvy.com/staff/jgotts/k6-2+/kernel-2.2.16-4.src.rpm and
two much more detailed messages were sent to redhat-list today.  It might
be nice to slip this patch into the next bug fix kernel RPM's for 6.2 and
7.0 unless 2.2.18 is out by then.
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