From: Tom Hughes <tom@compton.nu>
Date: Fri, 29 Mar 2019 09:36:08 +0000 (+0000)
Subject: Handle machines with no cpufreq governor
X-Git-Url: https://git.openstreetmap.org/chef.git/commitdiff_plain/c34c0969a192095cd810973c194a3fef5ef4f5f8?ds=sidebyside

Handle machines with no cpufreq governor
---

diff --git a/cookbooks/hardware/attributes/default.rb b/cookbooks/hardware/attributes/default.rb
index bc7d773cb..2619fd549 100644
--- a/cookbooks/hardware/attributes/default.rb
+++ b/cookbooks/hardware/attributes/default.rb
@@ -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"