Bug 1346771 – The --smi option to cyclictest requires cap_sys_rawio to read the msr and cpuid registers

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Bug 1346771 - The --smi option to cyclictest requires cap_sys_rawio to read the msr and cpuid registers

Summary:	The --smi option to cyclictest requires cap_sys_rawio to read the msr and cpu...

Status:	CLOSED ERRATA

Aliases:	None

Product:	Red Hat Enterprise Linux 7
Classification:	Red Hat
Component:	rt-tests (Show other bugs)
Sub Component:
Version:	7.3
Hardware:	Unspecified Unspecified

Priority	high Severity unspecified
Target Milestone:	rc
Target Release:	---
Assigned To:	John Kacur
QA Contact:	Jiri Kastner
Docs Contact:	Marie Dolezelova

URL:
Whiteboard:
Keywords:	ZStream

Depends On:
Blocks:	1274397 1349434
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Reported:	2016-06-15 06:26 EDT by John Kacur
Modified:	2016-11-04 01:13 EDT (History)
CC List:	3 users (show)

See Also:
Fixed In Version:
Doc Type:	Enhancement
Doc Text:	Cyclitest "--smi" option available for non-root users With this update, it is possible to use the cyclictest program with the "--smi" option as a non-root user, provided that the user also belongs to the "realtime" group. On processors that support system management interrupts (SMIs), "--smi" displays a report on the system's SMIs, which was previously only available for root users.
Story Points:	---
Clone Of:
Clones:	1349434 (view as bug list)
Environment:
Last Closed:	2016-11-04 01:13:45 EDT
Type:	Bug
Regression:	---
Mount Type:	---
Documentation:	---
CRM:
Verified Versions:
Category:	---
oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

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External Trackers
Tracker	ID	Priority	Status	Summary	Last Updated
Red Hat Product Errata	RHBA-2016:2391	normal	SHIPPED_LIVE	rt-tests bug fix update	2016-11-03 09:54:15 EDT

Groups: None (edit)

Description John Kacur 2016-06-15 06:26:31 EDT

There is a new option to cyclictest to detect smis, that needs to read the msr and cpuid registers. Bugzilla 1341783 creates a udev rule to give the group "realtime" access to these registers, but this isn't sufficient. Programs that require the access need the cap_sys_rawio capability

Comment 1 John Kacur 2016-06-23 05:21:25 EDT

Fixed in rt-tests-1.0-3 and up

Comment 6 errata-xmlrpc 2016-11-04 01:13:45 EDT

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://rhn.redhat.com/errata/RHBA-2016-2391.html

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