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Bug 119174

Summary:	/proc/cpuinfo vendor_id is wrong. shows $
Product:	Red Hat Enterprise Linux 3	Reporter:	Bill Peck <bpeck>
Component:	kernel	Assignee:	Jim Paradis <jparadis>
Status:	CLOSED ERRATA	QA Contact:	Brian Brock <bbrock>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	3.0	CC:	peterm, petrides, riel
Target Milestone:	---
Target Release:	---
Hardware:	ia32e
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2004-05-12 01:08:46 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 Bill Peck 2004-03-25 22:49:42 UTC

Description of problem:

notice that vendor_id below shows bad data.  In previous versions the
kernel showed Genuine_Intel

[root@minimumble root]# cat /proc/cpuinfo
processor       : 0
vendor_id       : $
cpu family      : 15
model           : 3
model name      :                    Genuine Intel(R) CPU 2.00GHz
physical id     : 0
siblings        : 2
stepping        : 1
cpu MHz         : 1995.174
cache size      : 1024 KB
fpu             : yes
fpu_exception   : yes
cpuid level     : 5
wp              : yes
flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge
mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss tm ferr
syscall lm
bogomips        : 3984.58
clflush size    : 64
address sizes   : 40 bits physical, 48 bits virtual
power management:
 
processor       : 1
vendor_id       : $
cpu family      : 15
model           : 3
model name      :                    Genuine Intel(R) CPU 2.00GHz
physical id     : 0
siblings        : 2
stepping        : 1
cpu MHz         : 1995.174
cache size      : 1024 KB
fpu             : yes
fpu_exception   : yes
cpuid level     : 5
wp              : yes
flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge
mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss tm ferr
syscall lm
bogomips        : 3984.58
clflush size    : 64
address sizes   : 40 bits physical, 48 bits virtual
power management:


Version-Release number of selected component (if applicable):
kernel-2.4.21-11.ELsmp

How reproducible:
everytime

Steps to Reproduce:
1. Install U2 on a ia32e system
2. cat /proc/cpuinfo
3.
  
Actual results:
bad vendor_id data

Expected results:
valid vendor_id data

Additional info:

Comment 1 Jim Paradis 2004-04-17 00:13:01 UTC

This turns out to have been a bug in adding the additional capability
word to the cpuinfo struct that ia32e needs.  The code that sets the
word was smashing the first four bytes of the x86_vendor_id[] field.

Patch submitted for U3.

Comment 2 Ernie Petrides 2004-04-22 03:53:22 UTC

Although originally planned for U3, due to an unexpected U2 respin
over a security erratum, we've taken Jim's fix into U2.  I've just
committed Jim's fix to kernel version 2.4.21-15.EL.

Comment 3 John Flanagan 2004-05-12 01:08:47 UTC

An errata has been issued which should help the problem described in this bug report. 
This report is therefore being closed with a resolution of ERRATA. For more information
on the solution and/or where to find the updated files, please follow the link below. You may reopen 
this bug report if the solution does not work for you.

http://rhn.redhat.com/errata/RHSA-2004-188.html