Hanging issue in Linux

If your system hangs

# sudo apt-get install preload

# sudo apt-get autoclean

# sudo apt-get autoremove

if problem persists we can also find the processes which are having higher cpu utilization

# top (in terminal)

then

# kill -9 PID

or we can also limit those processes using cpulimit

#sudo apt-get install cpulimit

#cpulimit -e name_of_process -l limit

eg. cpulimit -e Firefox -l 55

or

# cpulimit -p PID -l limit

eg. #cpulimit -p 2011 -l 55

we can find the PID by ‘top’ command.

if nothing is happening i.e complete freezing in ubuntu

while holding ‘alt+sys’  key type ‘REISUB’

🙂