[13] in Athena Bugs
defunct processes on post offices
daemon@ATHENA.MIT.EDU (Ron M. Hoffmann)
Wed Mar 9 23:40:37 1988
Date: Mon, 7 Mar 88 10:24:23 EST
From: Ron M. Hoffmann <hoffmann@BITSY.MIT.EDU>
To: bugs@ATHENA.MIT.EDU
Seems like, for whatever reason, proceses fail to die completely. The
<defunct> processes pile up on the post offices. Possibly related to
this is the occaisional kpopd which fails to die because the TCP
connection to the PO was broken ungracefully.
Perhaps if the server were to insist on using a keepalive on the TCP
connections, some of these things would time out of their own accord
and obviate constant manual intervention?
-Ron <I'm not a programmer> Hoffmann
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EG:
ATHENA-PO-1# ps ax
PID TT STAT TIME COMMAND
0 ? D 0:14 swapper
1 ? S 9:59 init
2 ? D 0:00 pagedaemon
64 ? S 252:51 /etc/named /etc/named.boot
113 ? S 185:54 /etc/update -n
117 ? I 220:50 /etc/cron
123 ? I 0:07 /etc/inetd
126 ? I 0:03 /etc/portmap
152 ? S 86:50 /usr/lib/sendmail -bd -q30m
646 ? Z 0:00 <defunct>
1665 ? Z 0:00 <defunct>
1736 p0 Z 0:00 <defunct>
1891 ? Z 0:00 <defunct>
1930 p0 Z 0:00 <defunct>
2014 ? Z 0:00 <defunct>
2068 p0 Z 0:00 <defunct>
2107 ? Z 0:00 <defunct>
2298 p0 Z 0:00 <defunct>
2529 p0 Z 0:00 <defunct>
3024 ? Z 0:00 <defunct>
3668 ? Z 0:00 <defunct>
4922 ? Z 0:00 <defunct>
7611 p0 Z 0:00 <defunct>
8036 co I 0:00 - std.9600 console (getty)
8780 ? S 0:00 -ATHENA.MIT.EDU: HELO ATHENA (sendmail)
8787 ? Z 0:00 <defunct>
8788 ? R 0:00 -AA08782 ATHENA.MIT.EDU: DATA (sendmail)
10917 ? S < 5:28 /etc/ntpd
12663 ? S 35:42 /etc/syslogd
15263 ? I 3:57 /etc/timed
20637 ? S 5:58 /usr/etc/knetd
21529 ? Z 0:00 <defunct>
21671 p0 Z 0:00 <defunct>
22203 p0 Z 0:00 <defunct>
22736 ? Z 0:00 <defunct>
25778 p0 Z 0:00 <defunct>
27305 ? Z 0:00 <defunct>
8778 p0 S 0:00 klogind
8779 p0 S 0:01 -csh (csh)
8786 p0 R 0:00 ps ax
ATHENA-PO-1#
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