[Bug 1321425] Re: irqbalance spams syslog about affinity_hint subset empty

[Jorge Niedbalski]

** Description changed:

+ [Environment]
+ 
  /var/log/syslog has repeating
  May 20 14:39:28 txsllabc7k001 /usr/sbin/irqbalance: irq 121 affinity_hint subset empty
  May 20 14:39:28 txsllabc7k001 /usr/sbin/irqbalance: irq 123 affinity_hint subset empty
- May 20 14:39:28 txsllabc7k001 /usr/sbin/irqbalance: irq 125 affinity_hint subset empty
- May 20 14:39:38 txsllabc7k001 /usr/sbin/irqbalance: irq 119 affinity_hint subset empty
- May 20 14:39:38 txsllabc7k001 /usr/sbin/irqbalance: irq 121 affinity_hint subset empty
- May 20 14:39:38 txsllabc7k001 /usr/sbin/irqbalance: irq 123 affinity_hint subset empty
- May 20 14:39:38 txsllabc7k001 /usr/sbin/irqbalance: irq 125 affinity_hint subset empty
- May 20 14:39:48 txsllabc7k001 /usr/sbin/irqbalance: irq 119 affinity_hint subset empty
- May 20 14:39:48 txsllabc7k001 /usr/sbin/irqbalance: irq 121 affinity_hint subset empty
- May 20 14:39:48 txsllabc7k001 /usr/sbin/irqbalance: irq 123 affinity_hint subset empty
- May 20 14:39:48 txsllabc7k001 /usr/sbin/irqbalance: irq 125 affinity_hint subset empty
- May 20 14:39:58 txsllabc7k001 /usr/sbin/irqbalance: irq 119 affinity_hint subset empty
- May 20 14:39:58 txsllabc7k001 /usr/sbin/irqbalance: irq 121 affinity_hint subset empty
- May 20 14:39:58 txsllabc7k001 /usr/sbin/irqbalance: irq 123 affinity_hint subset empty
- May 20 14:39:58 txsllabc7k001 /usr/sbin/irqbalance: irq 125 affinity_hint subset empty
- May 20 14:40:08 txsllabc7k001 /usr/sbin/irqbalance: irq 119 affinity_hint subset empty
- May 20 14:40:08 txsllabc7k001 /usr/sbin/irqbalance: irq 121 affinity_hint subset empty
- May 20 14:40:08 txsllabc7k001 /usr/sbin/irqbalance: irq 123 affinity_hint subset empty
- May 20 14:40:08 txsllabc7k001 /usr/sbin/irqbalance: irq 125 affinity_hint subset empty
- May 20 14:40:18 txsllabc7k001 /usr/sbin/irqbalance: irq 119 affinity_hint subset empty
- May 20 14:40:18 txsllabc7k001 /usr/sbin/irqbalance: irq 121 affinity_hint subset empty
+ May 20 14:39:28 txsllabc7k001 /usr/sbin/irqbalance: irq 125 affinity_hint [Repeat]
  
  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: irqbalance 1.0.6-2
  ProcVersionSignature: Ubuntu 3.13.0-24.47-generic 3.13.9
  Uname: Linux 3.13.0-24-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.1
  Architecture: amd64
  Date: Tue May 20 14:19:32 2014
  ExecutablePath: /usr/sbin/irqbalance
  ProcEnviron:
-  TERM=linux
-  PATH=(custom, no user)
+  TERM=linux
+  PATH=(custom, no user)
  SourcePackage: irqbalance
  UpgradeStatus: No upgrade log present (probably fresh install)
+ 
+ [Impact]
+ 
+ Syslog writes a repeated set of affinity_hint entries, affecting logs
+ visibility and potentially causing high disk usage.
+ 
+ [Test]
+ 
+ - Install irqbalance package.
+ - Enable /etc/default/irqbalance
+ #Configuration for the irqbalance daemon
+ #Should irqbalance be enabled?
+ ENABLED="1"
+ - Start (service start irqbalance)
+ 
+ [Regression Potential]
+ 
+ - None is expected.
+ 
+ [Other Info]
+ 
+ The fix is to only warn once for affinity hint subset empty irqs.
+ (See: https://github.com/Irqbalance/irqbalance/commit/c9e5f36fe91d2d04d013d96f1093419245585de7)

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https://bugs.launchpad.net/bugs/1321425

Title:
  irqbalance spams syslog about affinity_hint subset empty

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