^C[nugetchar@arch ~]$ sudo powertop --auto-tune
[sudo] password for nugetchar:
Loaded 101 prior measurements
Cannot load from file /var/cache/powertop/saved_parameters.powertop
RAPL device for cpu 0
RAPL Using PowerCap Sysfs : Domain Mask d
RAPL device for cpu 0
RAPL Using PowerCap Sysfs : Domain Mask d
RAPL device for cpu 0
RAPL Using PowerCap Sysfs : Domain Mask d
Devfreq not enabled
Cannot load from file /var/cache/powertop/saved_parameters.powertop
  unknown op '{'
To show power estimates do 196 measurement(s) connected to battery onlyLeaving PowerTOP
*** Error in `powertop': corrupted double-linked list: 0x00000000019646a0 ***