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Random "Freezing" with AMD Ryzen CPUs

It seems that numerous GNU/Linux users (including myself) have been having issues with the system randomly "freezing" during light usage. From journalctl output and anecdotal accounts, it is speculated that the AMD Ryzen CPUs do not support other C-states for power management very well (at least on GNU/Linux distributions), and the freezing may be resolved by limiting the C-state of the CPU.

Possible Solution

Limiting the C-state of the CPU can be done through the addition of the following kernel boot parameter.

processor.max_cstate=1

gfontenot

def get_movie_duration video_file
	
  # Run ffmpeg on the video, and do it silently
  ffmpeg_output = `/usr/local/bin/ffmpeg -i "#{video_file}" 2>&1`
	
  # Find the duration in the output, and force a return if it's found
  /duration: ([0-9]{2}:[0-9]{2}:[0-9]{2}.[0-9]{2})/i.match(ffmpeg_output) { |m| return m[1] }

  # If it didn't get a match, something is wrong. Log the error
  return "FFMPEG ERROR"