08-29-2001
zombies
Unfortunately, since zombies are "the living dead"
they cannot be "killed" since they are already
dead. I assume you are seeing many of them when
you run a "ps". When executing ps for example:
# ps -ef
UID PID PPID C STIME TTY TIME CMD
root 1 0 0 Jun 01 - 1:55 /etc/init
root 6456 1 0 Jun 01 - 0:00 /usr/sbin/srcmstr
root 6740 6456 0 Jun 01 - 0:13 /usr/sbin/syslogd
You can see here that "init" is the "mother" of
all processes with PID of 1. As you see above,
the System Resource Controller (srcmstr) is the
parent of the Syslog Deamon (syslogd). This is
determined by syslogd's PPID being 6456 which
is the PID of srcmstr.
Can you determine what the PPID of the zombies
is? Is it the same for all of them? What was
changed on the system recently that may be
causing this?
Also, check your system logs in:
/var/adm/message and /var/adm/messages/syslog.log
for any relevant information.
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LEARN ABOUT CENTOS
killall5
KILLALL5(8) Linux System Administrator's Manual KILLALL5(8)
NAME
killall5 -- send a signal to all processes.
SYNOPSIS
killall5 -signalnumber [-o omitpid[,omitpid..]] [-o omitpid[,omitpid..]..]
DESCRIPTION
killall5 is the SystemV killall command. It sends a signal to all processes except kernel threads and the processes in its own session, so
it won't kill the shell that is running the script it was called from. Its primary (only) use is in the rc scripts found in the /etc/init.d
directory.
OPTIONS
-o omitpid
Tells killall5 to omit processes with that process id.
NOTES
killall5 can also be invoked as pidof, which is simply a (symbolic) link to the killall5 program.
EXIT STATUS
The program return zero if it killed processes. It return 2 if no process were killed, and 1 if it was unable to find any processes
(/proc/ is missing).
SEE ALSO
halt(8), reboot(8), pidof(8)
AUTHOR
Miquel van Smoorenburg, miquels@cistron.nl
04 Nov 2003 KILLALL5(8)