irqbalance crashes when CPUs are taken offline manually

[Martin Vysny]

I have the following stuff in my /etc/rc.local, to disable hyperthreading:

echo 0 >/sys/devices/system/cpu/cpu1/online
echo 1 >/sys/devices/system/cpu/cpu2/online
echo 0 >/sys/devices/system/cpu/cpu3/online
echo 1 >/sys/devices/system/cpu/cpu4/online
echo 0 >/sys/devices/system/cpu/cpu5/online
echo 1 >/sys/devices/system/cpu/cpu6/online
echo 0 >/sys/devices/system/cpu/cpu7/online

HT cannot be disabled in my bios, unfortunately. With this stuff in /etc/rc.local, irqbalance tend to crash.

ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: irqbalance 1.0.6-3ubuntu1.1
ProcVersionSignature: Ubuntu 3.19.0-28.30-generic 3.19.8-ckt5
Uname: Linux 3.19.0-28-generic x86_64
ApportVersion: 2.17.2-0ubuntu1.5
Architecture: amd64
CurrentDesktop: Unity
Date: Sat Sep 26 13:47:54 2015
InstallationDate: Installed on 2014-03-07 (567 days ago)
InstallationMedia: Ubuntu-Server 13.04 "Raring Ringtail" - Release amd64 (20130423.1)
SourcePackage: irqbalance
UpgradeStatus: Upgraded to vivid on 2015-05-02 (146 days ago)

[Robie Basak (racb)]

Importance: Low since this is an unusual user configuration which I don't think is likely to affect many users.

It might be worth testing the latest upstream release and reporting upstream if it is affected.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Christian Ehrhardt  (paelzer)]

This is dormant for way too long, and IMHO should be reported upstream and linked here.
Once upstream has a fix it will be picked up by the next merge and from there be considered as an SRU.