Bug 1372190 - tuned profile configuration for "kernel.sched_rt_runtime_us" in package "tuned-profiles-realtime" cause error when spawning instance
Summary: tuned profile configuration for "kernel.sched_rt_runtime_us" in package "tune...
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: tuned
Version: 7.2
Hardware: Unspecified
OS: Unspecified
high
high
Target Milestone: rc
: ---
Assignee: Jaroslav Škarvada
QA Contact: Tereza Cerna
URL:
Whiteboard:
Depends On: 1346715
Blocks:
TreeView+ depends on / blocked
 
Reported: 2016-09-01 07:02 UTC by Marcel Kolaja
Modified: 2016-09-15 08:00 UTC (History)
9 users (show)

Fixed In Version: tuned-2.5.1-4.el7_2.6
Doc Type: Bug Fix
Doc Text:
Prior to this update, the tuned utility profile configuration for the kernel.sched_rt_runtime_us sysctl variable in the realtime profile included in the tuned-profiles-realtime package was incorrect. As a consequence, spawning a VM instance led to an error due to an incorrect scheduling time. Now, the value of kernel.sched_rt_runtime_us is set to "-1", and the described problem no longer occurs.
Clone Of: 1346715
Environment:
Last Closed: 2016-09-15 08:00:45 UTC
Target Upstream Version:

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System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2016:1848 0 normal SHIPPED_LIVE tuned bug fix update 2016-09-15 11:34:59 UTC

Description Marcel Kolaja 2016-09-01 07:02:21 UTC 
This bug has been copied from bug #1346715 and has been proposed
to be backported to 7.2 z-stream (EUS).
Comment 4 Tereza Cerna 2016-09-01 13:05:01 UTC 
Verified in:
   tuned-2.5.1-4.el7_2.6.noarch
   tuned-profiles-realtime-2.5.1-4.el7_2.6.noarch
PASS

::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
:: [   LOG    ] :: Check value of kernel.sched_rt_runtime_us
::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::

:: [   PASS   ] :: Command 'cat /usr/lib/tuned/realtime/tuned.conf | grep 'kernel.sched_rt_runtime_us' | grep '\-1'' (Expected 0, got 0)
:: [   PASS   ] :: Command 'tuned-adm profile realtime' (Expected 0, got 0)
:: [   PASS   ] :: Command 'sysctl kernel.sched_rt_runtime_us | grep '\-1'' (Expected 0, got 0)
:: [   LOG    ] :: Duration: 1s
:: [   LOG    ] :: Assertions: 3 good, 0 bad
:: [   PASS   ] :: RESULT: Check value of kernel.sched_rt_runtime_us

***********************************************************

Reproduced in:
   tuned-2.5.1-1.el7.noarch
   tuned-profiles-realtime-2.5.1-1.el7.noarch
FAIL

::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
:: [   LOG    ] :: Check value of kernel.sched_rt_runtime_us
::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::

:: [   FAIL   ] :: Command 'cat /usr/lib/tuned/realtime/tuned.conf | grep 'kernel.sched_rt_runtime_us' | grep '\-1'' (Expected 0, got 1)
:: [   PASS   ] :: Command 'tuned-adm profile realtime' (Expected 0, got 0)
:: [   FAIL   ] :: Command 'sysctl kernel.sched_rt_runtime_us | grep '\-1'' (Expected 0, got 1)
:: [   LOG    ] :: Duration: 4s
:: [   LOG    ] :: Assertions: 1 good, 2 bad
:: [   FAIL   ] :: RESULT: Check value of kernel.sched_rt_runtime_us
Comment 6 errata-xmlrpc 2016-09-15 08:00:45 UTC 
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-2016-1848.html
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