Q: A program has locked up and my machine is frozen, what do I do?
A: First, never turn off a UNIX workstation.
If a program locks up your workstation, you can kill that program from another computer. To kill a process remotely do the following.
1. Logon to another workstation.Please Note: You can only kill processes that belong to you.2. In an X-term window type:
where xx is the machine number of the locked computer.telnet geogxx3. Logon to the locked machine with your username and password.
4. Type the command:
This command will bring up a screen listing all of the processes running on that workstation. Find the name of the program that is locked on the far right column and then note the corresponding PID (process ID).top5. To kill a process type
where xxxxx is the PID. This command will be entered in the upper portion of the top screen. When k is typed, ill will automatically appear to form the kill command. See example below.k xxxxx
last pid: 27727; load averages: 0.13, 0.09, 0.09 11:30:02 60 processes: 59 sleeping, 1 on cpu CPU states: 66.4% idle, 14.8% user, 18.8% kernel, 0.0% iowait, 0.0% swap Memory: 192M real, 18M free, 8984K swap in use, 61M swap free ###TYPE WILL APPEAR HERE#### PID USERNAME THR PRI NICE SIZE RES STATE TIME CPU COMMAND 27717 quinlan 1 -6 0 2004K 1552K cpu 0:07 2.41% top 24322 root 1 34 0 10M 6612K sleep 3:01 2.17% Xsun 27720 root 1 3 0 884K 648K sleep 0:00 0.68% sh 27029 quinlan 1 33 0 5104K 4164K sleep 0:06 0.52% xterm 26929 quinlan 1 33 0 2692K 1924K sleep 0:17 0.28% fvwm2 27727 root 1 6 0 788K 512K sleep 0:00 0.24% sleep 27721 root 1 6 0 280K 276K sleep 0:00 0.23% config_update 27182 quinlan 1 33 0 4288K 3356K sleep 0:03 0.15% xterm 489 root 12 33 0 2332K 1856K sleep 109:06 0.12% mibiisa 381 root 1 33 0 876K 568K sleep 1:11 0.07% utmpd 1 root 1 33 0 664K 108K sleep 9:17 0.05% init 27185 quinlan 1 33 0 2056K 1376K sleep 0:00 0.03% telnet 464 root 1 -25 0 2384K 1328K sleep 149:08 0.00% niceguy 276 root 1 33 0 3496K 2472K sleep 15:11 0.00% amd 207 root 1 34 -12 2184K 756K sleep 9:05 0.00% xntpd 178 root 1 33 0 2940K 1488K sleep 8:05 0.00% named 26978 quinlan 1 34 0 27M 17M sleep 7:01 0.00% netscape 200 root 26 33 0 4752K 1684K sleep 4:43 0.00% syslogd 336 root 1 23 0 1532K 876K sleep 2:47 0.00% cron 438 root 1 23 0 1960K 1192K sleep 1:52 0.00% snmpdx 664 root 1 34 0 1404K 820K sleep 0:29 0.00% imapstats 329 root 1 33 0 1864K 844K sleep 0:25 0.00% sshd1 1057 nobody 6 33 0 2284K 1120K sleep 0:17 0.00% identd 373 root 1 33 0 2076K 1232K sleep 0:12 0.00% sendmail 26965 quinlan 1 25 0 5204K 3056K sleep 0:10 0.00% pine-4.21