Bug 129078

Summary:	CONFIG_MPENTIUMIII specified in kernel-2.4.21-i686-hugemem.config
Product:	Red Hat Enterprise Linux 3	Reporter:	Joel Griffiths <joelgriffiths>
Component:	kernel	Assignee:	Arjan van de Ven <arjanv>
Status:	CLOSED NOTABUG	QA Contact:	Brian Brock <bbrock>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	3.0	CC:	joelgriffiths, petrides, riel
Target Milestone:	---
Target Release:	---
Hardware:	i686
OS:	Linux
URL:	http://www.gadgetwiz.com
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2004-08-05 21:19:10 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Joel Griffiths 2004-08-03 19:38:49 UTC

Description of problem:
The rpm build of the 2.4.21-15.0.3 Redhat kernel specifes a PIII
processor under an i686 build config file. The linux-2.4 spec file
copies the kernel-2.4.21-i686-hugemem.config to .config on i686
systems. Unfortunately, the processor specified in the config file is
not an i686 but a PIII:

# CONFIG_M686 is not set
CONFIG_MPENTIUMIII=y


Version-Release number of selected component (if applicable):
kernel-source-2.4.21-15.0.3.EL.i386.rpm

Additional Informatio:
This occurs only under the hugemem config file, so I doubt it is
configured this way on purpose. If it is done on purpose, I would be
curious to learn why.

-- Joel Griffiths

Comment 1 Arjan van de Ven 2004-08-03 19:42:28 UTC

a pIII compiled kernel can use the prefetch instruction, which
improves performance somewhat, this was done to offset some of the
4g/4g costs, with the assumption that all boxes with lots of ram are
pIII or later anyway