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Bug 652279

Summary: [5.6 FEAT] POWER7 added to Aux Vextor
Product: Red Hat Enterprise Linux 5 Reporter: IBM Bug Proxy <bugproxy>
Component: kernelAssignee: Steve Best <sbest>
Status: CLOSED ERRATA QA Contact: Red Hat Kernel QE team <kernel-qe>
Severity: high Docs Contact:
Priority: high    
Version: 5.6CC: cward, jjarvis, nobody+PNT0273897, peterm, sbest, syeghiay
Target Milestone: rcKeywords: FutureFeature, OtherQA
Target Release: 5.6   
Hardware: ppc64   
OS: All   
Whiteboard:
Fixed In Version: Doc Type: Enhancement
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2011-01-13 22:00:40 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:
Bug Depends On:    
Bug Blocks: 531800, 557597, 563563, 563599    
Attachments:
Description Flags
rhel-5-2.6.18-192.at_base_platform none

Description IBM Bug Proxy 2010-11-11 14:31:00 UTC
1. Feature Overview:
Feature Id: [68245]
a. Name of Feature: [5.6 FEAT] POWER7 added to Aux Vextor
b. Feature Description
This is a kernel update needed to support two glibc feautres - IBM reference numbers 60459 and 60461
(RH reference 563563 and 563599). In order for the GLIBC patches to perform their function there
needs to be an accompanying kernel backport which will export the AT_PLATFORM and
AT_BASE_PLATFORM values to the Aux Vector.


2. Feature Details:
Sponsor: LTC Kernel
Architectures:  ppc64, 

Arch Specificity: purely arch specific code
Affects Kernel Modules: No
Delivery Mechanism: Backport
Category: kernel
Request Type: Kernel - Enhancement from Upstream
d. Upstream Acceptance: Accepted
Sponsor Priority P2
f. Severity: ship issue
IBM Confidential: No
Code Contribution: IBM code
g. Component Version Target: ---
h. Kernel - Enhancement from Upstream

3. Business Case
Required to support new IBM Power 7 platforms

4. Primary contact at Red Hat:
John Jarvis, jjarvis

5. Primary contacts at Partner:
Project Management Contact:
Michael L. Hohnbaum, hbaum.com

Technical contact(s):
Michael J. Wolf, mjwolf.com

Comment 1 John Jarvis 2010-11-11 15:07:26 UTC
IBM is signed up to test and provide feedback.  Setting OtherQA.

Comment 2 John Jarvis 2010-11-11 15:27:45 UTC
Created attachment 459782 [details]
rhel-5-2.6.18-192.at_base_platform

Comment 3 Steve Best 2010-11-17 16:06:18 UTC
posted to rh-kernel mailing list
http://post-office.corp.redhat.com/archives/rhkernel-list/2010-November/msg00955.html

Comment 5 John Jarvis 2010-11-18 21:01:34 UTC
This enhancement request was evaluated by the full Red Hat Enterprise Linux 
team for inclusion in a Red Hat Enterprise Linux minor release.   As a 
result of this evaluation, Red Hat has tentatively approved inclusion of 
this feature in the next Red Hat Enterprise Linux Update minor release.   
While it is a goal to include this enhancement in the next minor release 
of Red Hat Enterprise Linux, the enhancement is not yet committed for 
inclusion in the next minor release pending the next phase of actual 
code integration and successful Red Hat and partner testing.

Comment 6 John Jarvis 2010-11-18 21:01:55 UTC
Approved for inclusion in snapshot 3.

Comment 8 Jarod Wilson 2010-11-23 17:06:00 UTC
in kernel-2.6.18-233.el5
You can download this test kernel (or newer) from http://people.redhat.com/jwilson/el5

Detailed testing feedback is always welcomed.

Comment 10 IBM Bug Proxy 2010-11-29 21:41:02 UTC
------- Comment From rsa.com 2010-11-29 16:36 EDT-------
[root@ltcgranola4p03 ~]# uname -a
Linux ltcgranola4p03.ltc.austin.ibm.com 2.6.18-233.el5 #1 SMP Mon Nov 22 17:46:54 EST 2010 ppc64 ppc64 ppc64 GNU/Linux
[root@ltcgranola4p03 ~]# LD_SHOW_AUXV=1 /bin/true
AT_DCACHEBSIZE:  0x80
AT_ICACHEBSIZE:  0x80
AT_UCACHEBSIZE:  0x0
AT_SYSINFO_EHDR: 0x100000
AT_HWCAP:        dfp arch_2_05 ic_snoop smt mmu fpu altivec ppc64 ppc32
AT_PAGESZ:       65536
AT_CLKTCK:       100
AT_PHDR:         0x10000034
AT_PHENT:        32
AT_PHNUM:        8
AT_BASE:         0xf7fa0000
AT_FLAGS:        0x0
AT_ENTRY:        0x10000970
AT_UID:          0
AT_EUID:         0
AT_GID:          0
AT_EGID:         0
AT_SECURE:       0
AT_PLATFORM:     power6
AT_BASE_PLATFORM:power7

I installed the test kernel and verified that the fix is present on a Power7 system.

Comment 12 errata-xmlrpc 2011-01-13 22:00:40 UTC
An advisory 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 therefore 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-2011-0017.html