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Bug 1493976

Summary: CPUAffinity does not accept ranges
Product: Red Hat Enterprise Linux 7 Reporter: Paul Dwyer <pdwyer>
Component: systemdAssignee: Jan Synacek <jsynacek>
Status: CLOSED ERRATA QA Contact: Frantisek Sumsal <fsumsal>
Severity: medium Docs Contact:
Priority: unspecified    
Version: 7.4CC: fsumsal, jsynacek, msekleta, pdwyer, rmetrich, systemd-maint-list
Target Milestone: rc   
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: systemd-219-46.el7 Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2018-04-10 11:22:48 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:    
Bug Blocks: 1466365    

Description Paul Dwyer 2017-09-21 09:08:56 UTC
Description of problem:
Trying to specify ranges of cpus for CPUAffinity and they are not accepted.
CPUs need to be added individually which is a pain for large cpu systems

Version-Release number of selected component (if applicable):
RHEL7.4
systemd-219-42.el7_4.1.x86_64

How reproducible:
Always

Steps to Reproduce:
1. set the CPUAffinity for systemd in
/etc/systemd/system.conf

2. Trying to set CPUAffinity for a service to other cpus other than default group assigned to systemd in step 1.
Using an override file and specifying cpus in ranges e.g.
CPUAffinity=2-11,24-35,16-23,36-47

3. restart the service and it fails with
Failed at step CPUAFFINITY spawning /usr/sbin/httpd: Invalid argument
exit status=215/affinity 

Actual results:
Service fails to start

Expected results:
Service starts 

Additional info:
Service starts correctly if cpus are listed individually

Doesn't look like systemd supports ranges for CPUAffinity and enforces whitespace as a separator

Comment 2 Jan Synacek 2017-09-25 10:13:01 UTC
We need to backport https://github.com/systemd/systemd/pull/1699.

Comment 3 Jan Synacek 2017-09-27 07:07:44 UTC
https://github.com/lnykryn/systemd-rhel/pull/149

Comment 11 Lukáš Nykrýn 2017-10-08 06:10:18 UTC
fix merged to staging branch -> https://github.com/lnykryn/systemd-rhel/pull/149 -> post

Comment 17 errata-xmlrpc 2018-04-10 11:22:48 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://access.redhat.com/errata/RHBA-2018:0711