Bug 974073

Summary:	SAP 7.0: sblim-cmpi-base: wrong UserModeTime and KernelModeTime
Product:	Red Hat Enterprise Linux 7	Reporter:	Henning Sackewitz <henning.sackewitz>
Component:	sblim-cmpi-base	Assignee:	Vitezslav Crhonek <vcrhonek>
Status:	CLOSED CURRENTRELEASE	QA Contact:	Robin Hack <rhack>
Severity:	high	Docs Contact:
Priority:	high
Version:	7.1	CC:	amahdal, amascari, fdanapfe, henning.sackewitz, jscotka, linux, lmiccini
Target Milestone:	rc	Keywords:	FutureFeature
Target Release:	7.0
Hardware:	x86_64
OS:	Linux
Whiteboard:
Fixed In Version:	sblim-cmpi-base-1.6.2-7.el7	Doc Type:	Enhancement
Doc Text:		Story Points:	---
Clone Of:	974071	Environment:
Last Closed:	2014-06-13 12:41:36 UTC	Type:	Bug
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:	974071
Bug Blocks:	1018952, 1050219

Description Henning Sackewitz 2013-06-13 11:44:30 UTC

+++ This bug was initially created as a clone of Bug #974071 +++

The values for UserModeTime and KernelModeTime in CIM class Linux_UnixProcess are incorrectly calculated.

OSBase_UnixProcess.c:

231 if ( (fpstat=fopen(cmd,"r")) != NULL ) {
232 fscanf(fpstat,"%s %s %s %s %s %s %s %s %s %s %s %s %s %s "
233 "%lld %lld %s %s %s %s %s %ld",
234 &umtime,&kmtime,&ctime );
235 fclose(fpstat);
236 (sptr)->kmtime = kmtime10;
237 (sptr)->umtime = umtime*10;

The code is scanning fields 15 and 16 from /proc/[pid]/stat but it should use fields 14 and 15 on current Linux kernels as documented in
/usr/src/linux/Documentation/filesystems/proc.txt.

As a result, KernelModeTime is used for UserModeTime, and Child User Time for KernelModeTime.

See https://sourceforge.net/p/sblim/bugs/2644/ for upstream bug fix.

Comment 2 Frank Danapfel 2014-01-08 07:37:28 UTC

Removed RFE from title since this is really a bugfix and not a feature request

Comment 4 Ludek Smid 2014-06-13 12:41:36 UTC

This request was resolved in Red Hat Enterprise Linux 7.0.

Contact your manager or support representative in case you have further questions about the request.

Comment 5 Alois Mahdal 2016-09-09 05:26:23 UTC

"Fixed In Version" field was clearly wrong (fedora build for a RHEL7 bug).  I'm assuming the version @rhack reviewed it with (I think "best guess" is better than invalid value for this field).