What do I do if my screen is frozen?

On a Linux machine:

1. Make note of the name of the machine you are on.
2. Log into another machine
3. ssh into the machine that is frozen
4. type

pkill -9 -u your_username

5. This should log you out and kill all the processes.
The frozen terminal should return to a login screen.

If all else fails,
Contact the Math Help Desk

If it is a Windows machine:

Choose Shutdown, then choose Restart.

How do I kill a hung process?

If you are logged into a Solaris machine:

In a terminal window, type,


Then it will ask you to click on the window you would like to choose

From any machine:

From a terminal window, type:

pkill -u your_username name_of_process

You can check if the process died, by typing:

pgrep -u your_username name_of_process

If it hasn't died, you can force it by typing: