Comment 4 for bug 50741

Trying to do:

#echo 1 > /sys/module/processor/parameters/max_cstate

result in:

bash: /sys/module/processor/parameters/max_cstate: No such file or directory

directory exist, but trying to do anything with it result in write errors.

This slow read/write problems randers my system totaly unusable (saving 192MB fie takes 1 hour !!! That's unimaginable) (Apears on 7.10/8.04/8.10, didn't have motivation to test older releases)