RHEA-2016:1542 - Product Enhancement Advisory

Topic

Updated rt-tests packages that add one enhancement are now available for Red Hat Enterprise Linux 7.

Description

The rt-tests packages include a set of programs that test and measure various components of real-time kernel behavior. These packages measure timer, signal, and hardware latency and test the functioning of priority-inheritance mutexes.

This update adds the following enhancement:

• 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. (BZ#1349434)

Users of rt-tests are advised to upgrade to these updated packages, which add this enhancement.

Solution

Before applying this update, make sure all previously released errata relevant to your system have been applied.

For details on how to apply this update, refer to:

https://access.redhat.com/articles/11258

Affected Products

• Red Hat Enterprise Linux for Real Time 7 x86_64
• Red Hat Enterprise Linux for Real Time for NFV 7 x86_64
• Red Hat Enterprise Linux for Real Time for x86_64 - Extended Life Cycle Support 7 x86_64

Fixes

• BZ - 1349434 - The --smi option to cyclictest requires cap_sys_rawio to read the msr and cpuid registers

CVEs

(none)

References

• http://www.redhat.com/security/updates/classification/#normal