Bug 21572 – Write allocate/MTRR's not enabled for K6-2+

Bug 21572 - Write allocate/MTRR's not enabled for K6-2+

Summary:	Write allocate/MTRR's not enabled for K6-2+

Status:	CLOSED CURRENTRELEASE

Aliases:	None

Product:	Red Hat Linux
Classification:	Retired
Component:	kernel (Show other bugs)
Sub Component:
Version:	6.2
Hardware:	i586 Linux

Priority	low Severity medium
Target Milestone:	---
Target Release:	---
Assigned To:	Michael K. Johnson
QA Contact:	Brock Organ
Docs Contact:

URL:
Whiteboard:
Keywords:	FutureFeature

Depends On:
Blocks:
	Show dependency tree / graph

Reported:	2000-12-01 02:00 EST by John Gotts
Modified:	2007-03-26 23:37 EDT (History)
CC List:	0 users

See Also:
Fixed In Version:
Doc Type:	Enhancement
Doc Text:
Story Points:	---
Clone Of:
Environment:
Last Closed:	2002-12-14 23:06:14 EST
Type:	---
Regression:	---
Mount Type:	---
Documentation:	---
CRM:
Verified Versions:
Category:	---
oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

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Description John Gotts 2000-12-01 02:00:29 EST

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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