Handle machines with no cpufreq governor
authorTom Hughes <tom@compton.nu>
Fri, 29 Mar 2019 09:36:08 +0000 (09:36 +0000)
committerTom Hughes <tom@compton.nu>
Fri, 29 Mar 2019 09:36:08 +0000 (09:36 +0000)
cookbooks/hardware/attributes/default.rb

index bc7d773..2619fd5 100644 (file)
@@ -38,7 +38,8 @@ elsif node[:kernel][:modules].include?("i6300esb")
   default[:hardware][:watchdog] = "none"
 end
 
-if File.read("/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor").chomp == "ondemand"
+if File.exist?("sys/devices/system/cpu/cpu0/cpufreq/scaling_governor") &&
+   File.read("/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor").chomp == "ondemand"
   default[:sysfs][:cpufreq_ondemand][:comment] = "Tune the ondemand CPU frequency governor"
   default[:sysfs][:cpufreq_ondemand][:parameters][:"devices/system/cpu/cpufreq/ondemand/up_threshold"] = "25"
   default[:sysfs][:cpufreq_ondemand][:parameters][:"devices/system/cpu/cpufreq/ondemand/sampling_down_factor"] = "100"