Bug 524273

Summary:	RHEL6 Alpha1: testVMX testsuite errors on P6
Product:	Red Hat Enterprise Linux 6	Reporter:	Jeff Bastian <jbastian>
Component:	gcc	Assignee:	Jakub Jelinek <jakub>
Status:	CLOSED CURRENTRELEASE	QA Contact:	Michal Nowak <mnowak>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	6.0	CC:	jjarvis, mnowak, notting, ohudlick, syeghiay, tao
Target Milestone:	rc
Target Release:	6.0
Hardware:	ppc64
OS:	Linux
Whiteboard:
Fixed In Version:	gcc-4.4.1-16	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2010-11-11 14:39:13 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 Jeff Bastian 2009-09-18 15:47:29 UTC

Description of problem:
The testVMX test-suite -- which checks the correctness of Altivec/VMX instructions on POWER6 -- reported some errors on RHEL6 Alpha1 on a P6 system. The same test-suite runs fine on 5.4.

The testVMX suite is available at http://www.bsc.es/plantillaH.php?cat_id=215


Version-Release number of selected component (if applicable):
gcc-4.4.0-4.ppc64
gcc-c++-4.4.0-4.ppc64

How reproducible:
every time

Steps to Reproduce:
1. wget http://www.bsc.es/projects/deepcomputing/pblade/pblade_tuning/testVMX-0.2.2.tar.gz
2. tar xf testVMX-0.2.2.tar.gz; cd testVMX-0.2.2
3. make gcc
4. ./testVMX-gcc-32
5. ./testVMX-gcc-64
6. ./testVMX-g++-32
7. ./testVMX-g++-64

Actual results:
Function vec_cmpgt [type char]            ===> Error
Function vec_cmpgt [type short]           ===> Error
Function vec_cmpgt [type unsigned int]    ===> Error
Function vec_cmplt [type char]            ===> Error
Function vec_cmplt [type short]           ===> Error
Function vec_cmplt [type unsigned short]  ===> Error
Function vec_cmplt [type unsigned int]    ===> Error

Expected results:
no errors

Additional info:
Due to bug 511304 and bug 511908, you may need to install RHEL 6 from DVD (not a network install) on a non-blade system to reproduce.

Comment 2 RHEL Program Management 2009-09-18 15:57:36 UTC

This request was evaluated by Red Hat Product Management for inclusion in a Red
Hat Enterprise Linux major release.  Product Management has requested further
review of this request by Red Hat Engineering, for potential inclusion in a Red
Hat Enterprise Linux Major release.  This request is not yet committed for
inclusion.

Comment 3 Bill Nottingham 2009-09-18 19:41:02 UTC

Out of curiousity, if you put the test suite in a package, and build it in a build env/mock root, does that fail too?

Comment 4 Jakub Jelinek 2009-09-22 08:03:12 UTC

It fails even on Fedora 11 on G5.
Fixed thusly:
http://gcc.gnu.org/ml/gcc-patches/2009-09/msg01479.html
waiting for upstream approval.

For QA, it would be nice to put this testVMX testsuite into RHTS and grep for ===> Error lines.

Comment 5 Jakub Jelinek 2009-09-24 06:55:38 UTC

Fixed in gcc-4.4.1-16.

Comment 6 releng-rhel@redhat.com 2009-10-29 13:44:18 UTC

Fixed in 'gcc-4.4.1-16'. 'gcc-4.4.1-22.el6' included in compose 'RHEL6.0-20091028.0'.
Moving to ON_QA.

Comment 9 releng-rhel@redhat.com 2010-11-11 14:39:13 UTC

Red Hat Enterprise Linux 6.0 is now available and should resolve
the problem described in this bug report. This report is therefore being closed
with a resolution of CURRENTRELEASE. You may reopen this bug report if the
solution does not work for you.