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Full Discussion: processes
Top Forums UNIX for Advanced & Expert Users processes Post 6057 by rwb1959 on Wednesday 29th of August 2001 08:38:52 AM
Old 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 PHP

halt

halt(1M)						  System Administration Commands						  halt(1M)

NAME

       halt, poweroff - stop the processor

SYNOPSIS

       /usr/sbin/halt [-dlnqy]

       /usr/sbin/poweroff [-dlnqy]

DESCRIPTION

       The  halt  and  poweroff  utilities  write  any	pending information to the disks and then stop the processor. The poweroff utility has the
       machine remove power, if possible.

       The halt and poweroff utilities normally log the system shutdown to the system log daemon, syslogd(1M), and place a shutdown record in  the
       login accounting file /var/adm/wtmpx. These actions are inhibited if the -n or -q options are present.

OPTIONS

       The following options are supported:

       -d	Force a system crash dump before rebooting. See dumpadm(1M) for information on configuring system crash dumps.

       -l	Suppress sending a message to the system log daemon, syslogd(1M), about who executed halt.

       -n	Prevent the sync(1M) before stopping.

       -q	Quick halt. No graceful shutdown is attempted.

       -y	Halt the system, even from a dialup terminal.

FILES

       /var/adm/wtmpx	       History of user access and administration information.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWcsu			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       dumpadm(1M), init(1M), reboot(1M), shutdown(1M), sync(1M), syslogd(1M), inittab(4), attributes(5), smf(5)

NOTES

       The halt and poweroff utilities do not cleanly shutdown smf(5) services. Execute the scripts in /etc/rcnum.d or execute shutdown actions in
       inittab(4). To ensure a complete shutdown of system services, use shutdown(1M) or init(1M) to reboot a Solaris system.

SunOS 5.10							    2 Nov 2004								  halt(1M)
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