Today I try to enable cpu4 and cpu5 but it can not.
sudo -s echo 1 > /sys/devices/system/cpu/cpu4/online echo 1 > /sys/devices/system/cpu/cpu5/online
But both of them get error “bash: echo: write error: Invalid argument”.
I also try to change mode of /sys/devices/system/cpu/cpu4/online but it is not successful.
When I check
cat /sys/devices/system/cpu/offline -> it shows “4-5”
cat /sys/devices/system/cpu/online -> it shows “0-3”
cat /sys/devices/system/cpu/present -> it shows “0-3”
Are there any idea to solve this problem.
Thank in advance.