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DateTue, 7 Jan 1997 11:45:47 -0600 (CST)
From"Jake (not the snake) Messinger" <>
Subject*** URGENT *** Memory deallocation probs with 2.0.27
Im still having this problem BIG TIME! This appears to be a kernel bug. 

I now have 96 megs ram in the computer. (triton II, P133, 2 eide 1
gig drives). I added the EXTRA ram in hopes that the prob would go away.
It had 64 and used to run nicely.

Here is a free:

             total       used       free     shared    buffers     cached
Mem:         95360      94024       1336       5104        144       2580
-/+ buffers:            91300       4060
Swap:        32252      16464      15788

Here is what is running: (ps -aux)

USER       PID %CPU %MEM  SIZE   RSS TTY STAT START   TIME COMMAND
ams       9872  0.0  0.0  2012    84  p6 S    09:03   0:00 (dbc)
ams       9941  0.0  0.0  2012     4  p7 S    09:09   0:00 (dbc)
ams      10014  0.0  0.0  2012     4  p8 S    09:15   0:00 (dbc)
ams      10127  0.0  0.0  2012     4  p9 S    09:26   0:01 (dbc)
ams      10155  0.0  0.1  2012   100 p10 S    09:27   0:02 (dbc)
ams      10168  0.0  0.0  2012     4  pc S    09:27   0:00 (dbc)
ams      10300  0.0  0.0  2012     4  p0 S    09:36   0:01 (dbc)
ams      10422  0.0  0.0  2012     4  q0 S    09:47   0:02 (dbc)
ams      11284  0.0  0.0  2012     4  p4 S    11:03   0:00 (dbc)
ams      11341  0.2  0.1  2012   140  p1 S    11:07   0:03 (dbc)
ams      11733  0.1  0.3  2012   328  p5 S    11:34   0:00 /usr/swills/dbc 
amy      10415  0.0  0.0  1132     0  q0 SW   09:47   0:00 (tcsh)
aworchel 11721  0.1  0.0   936     0  p5 SW   11:34   0:00 (menu)
jake     11075  0.0  0.0  1128    20  p2 S    10:47   0:00 (tcsh)
jake     11084  0.0  0.1   796   128  p2 S    10:47   0:00 newmail 
jake     11771  0.1  0.2  1128   240  p3 S    11:36   0:00 -tcsh 
jake     11780  0.0  0.1   796   188  p3 S    11:36   0:00 newmail 
jake     11781  2.3  4.4  7152  4196  p3 S    11:36   0:02 pine 
karen    10130  0.0  0.0   936     0 p10 SW   09:26   0:00 (menu)
karen    11274  0.0  0.0   936     0  p4 SW   11:03   0:00 (menu)
lynne    10276  0.0  0.0  1132     0  p1 SW   09:36   0:00 (tcsh)
marcia    9862  0.0  0.0   936     0  p6 SW   09:03   0:00 (menu)
mary     10117  0.0  0.0   936     0  p9 SW   09:26   0:00 (menu)
mary     10158  0.0  0.0   936     0  pc SW   09:27   0:00 (menu)
moongate   208  0.0  0.0  1076     0  ?  SW  Jan  4   0:00 (autorun)
moongate 20823  0.0  0.0  3620     0  ?  SW  Jan  6   0:00 (gdb)
moongate 20825  3.4 15.5 19820 14832  ?  D   Jan  6  74:03 /usr3/home/moongate/M
nelson    9931  0.0  0.0   936     0  p7 SW   09:09   0:00 (menu)
nelson   10004  0.0  0.0   936     0  p8 SW   09:15   0:00 (menu)
new         82  0.0  0.0   788     0  ?  SW  Jan  4   0:00 (rpc.portmap)
nobody   10822  0.0  0.1   932   120  ?  S    10:25   0:00 /usr/sbin/httpd 
nobody   11073  0.0  0.1   932   128  ?  S    10:47   0:00 /usr/sbin/httpd 
nobody   11106  0.0  0.2   932   268  ?  S    10:50   0:00 /usr/sbin/httpd 
nobody   11124  0.0  0.1   932   168  ?  S    10:50   0:00 /usr/sbin/httpd 
nobody   11218  0.0  0.3   932   328  ?  S    10:57   0:00 /usr/sbin/httpd 
nobody   11621  0.0  0.1   932   140  ?  S    11:27   0:00 /usr/sbin/httpd 
nobody   11631  0.0  0.1   932   156  ?  S    11:27   0:00 /usr/sbin/httpd 
nobody   11650  0.0  0.1   932   168  ?  S    11:28   0:00 /usr/sbin/httpd 
root         1  0.0  0.0   776    32  ?  S   Jan  4   4:14 (init)
root         2  0.0  0.0     0     0  ?  SW  Jan  4   0:02 (kflushd)
root         3  0.0  0.0     0     0  ?  SW< Jan  4   0:31 (kswapd)
root         4  0.0  0.0     0     0  ?  SW  Jan  4   0:00 (nfsiod)
root         5  0.0  0.0     0     0  ?  SW  Jan  4   0:00 (nfsiod)
root         6  0.0  0.0     0     0  ?  SW  Jan  4   0:00 (nfsiod)
root         7  0.0  0.0     0     0  ?  SW  Jan  4   0:00 (nfsiod)
root        13  0.0  0.0   756    40  ?  S   Jan  4   1:11 update (bdflush) 
root        60  0.0  0.1   772   152  ?  S   Jan  4   0:22 /usr/sbin/crond -l10
root        78  0.0  0.0   784    80  ?  S   Jan  4   0:33 /usr/sbin/syslogd -r
root        80  0.0  0.0   776     0  ?  SW  Jan  4   0:00 (klogd)
root        86  0.0  0.6  1940   604  ?  S   Jan  4   0:16 /usr/sbin/named -b /u
root        88  0.0  0.0   788    16  ?  S   Jan  4   0:00 (lpd)
root        90  0.0  0.0   804    16  ?  S   Jan  4   0:01 (lpd)
root        92  0.0  0.0   816    60  ?  S   Jan  4   0:00 /usr/sbin/rpc.mountd
root        94  0.0  0.0   844    68  ?  S   Jan  4   0:00 /usr/sbin/rpc.nfsd 
root       100  0.0  0.2  1156   220  ?  S   Jan  4   0:01 sendmail: accepting c
root       105  0.0  0.0   776     0  ?  SW  Jan  4   0:00 (gpm)
root       113  0.0  0.1   916    96  ?  S   Jan  4   0:06 /usr/sbin/httpd 
root       123  0.0  0.0  1124     4   1 S   Jan  4   0:00 (tcsh)
root       350  0.0  0.0   772     0   4 SW   17:16   0:00 (agetty)
root      1061  0.0  0.0   772     0   6 SW   17:35   0:00 (agetty)
root      1136  0.0  0.0   772    32  ?  S    17:37   0:00 (inetd)
root      1180  0.0  0.0   772     0   2 SW   17:37   0:00 (agetty)
root      1194  0.0  0.0   772     0   5 SW   17:38   0:00 (agetty)
root      5287  0.0  0.0   772     0   3 SW  Jan  4   0:00 (agetty)
root      9023  0.0  0.0   816     0  ?  SW   07:25   0:00 (in.telnetd)
root      9861  0.0  0.0   816     0  ?  SW   09:03   0:00 (in.telnetd)
root      9930  0.0  0.0   816     0  ?  SW   09:09   0:00 (in.telnetd)
root     10003  0.0  0.0   816     0  ?  SW   09:15   0:00 (in.telnetd)
root     10116  0.0  0.0   816     0  ?  SW   09:26   0:00 (in.telnetd)
root     10128  0.0  0.0   816     4  ?  S    09:26   0:00 (in.telnetd)
root     10157  0.0  0.0   816     0  ?  SW   09:27   0:00 (in.telnetd)
root     10271  0.0  0.0   816     0  ?  SW   09:36   0:02 (in.telnetd)
root     10414  0.0  0.0   816     0  ?  SW   09:47   0:00 (in.telnetd)
root     11074  0.0  0.0   816    44  ?  S    10:47   0:02 in.telnetd 
root     11273  0.0  0.0   816     0  ?  SW   11:03   0:00 (in.telnetd)
root     11695  0.0  0.4  1124   416  p2 S    11:33   0:00 -tcsh 
root     11720  0.0  0.0   816    56  ?  S    11:34   0:00 in.telnetd 
root     11770  0.1  0.0   816    88  ?  S    11:36   0:00 in.telnetd 
root     11798  0.0  0.3   824   360  p2 R    11:38   0:00 ps -aux 
rose      9024  0.0  0.0   936     0  p0 SW   07:25   0:00 (menu)

As you can see, only the mud is taking up a significant amount of ram
(almost 20%), but this was NEVER much of a problem before. The mud does
NOT run as root and worked fine on a 1.3 and a 2.0.0 kernel. I have the
slackware 3.1.0 distribution which has the LATEST libs and kernel 2.0.27.
I have the same problem with 2.0.21 so SOMETHING happened between 2.0.0
and 2.0.21

Why are my USED buffers so high!?!?!

This has got to be a kernel problem. I run the exact same stuff on an
alternate server running 2.0.0 and it runs happily.

Also I can write a program (eatmem) that allocates 2 megs ram then crashes
and running this enough times will crash the server. This is runing NOT as
root also.

~*-,._.,-*~'`^`'~*-,._.,-*~'`^`'~*-,._.,-*~'`^`'~*-,._.,-*~'`^`'~*-,._.,-*~
	Jake Messinger             	713-772-6690	jake@ams.com
	Advanced Medical Systems, Inc.			jake@uh.edu 
	Houston, Texas                  http://www.ams.com/~jake
~*-,._.,-*~'`^`'~*-,._.,-*~'`^`'~*-,._.,-*~'`^`'~*-,._.,-*~'`^`'~*-,._.,-*~
			(Betcha can't do this on a MAC)



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