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Title: | DIGITAL UNIX (FORMERLY KNOWN AS DEC OSF/1) |
Notice: | Welcome to the Digital UNIX Conference |
Moderator: | SMURF::DENHAM |
|
Created: | Thu Mar 16 1995 |
Last Modified: | Fri Jun 06 1997 |
Last Successful Update: | Fri Jun 06 1997 |
Number of topics: | 10068 |
Total number of notes: | 35879 |
I've got a customer who's seeing some strange behavior under 3.2G as well as
4.0A. It seems that on occasion, some processes will be swapped out and
never become active again. He's seen this with shells, rdist, and (most
importantly) portmap. With portmap, ps shows the process exists:
USER PID %CPU %MEM VSZ RSS TTY S STARTED TIME COMMAND
root 5473 0.0 0.0 1.36M 0K ?? IW Mar 12 0:33.99 /usr/sbin/portmap
but there were tons of messages in /var/adm/messages:
Mar 12 01:49:32 augustus vmunix: Portmapper not responding; giving up
Mar 12 01:49:47 augustus vmunix: Portmapper not responding; still trying
These messages continued until he manually killed pormap & restarted in
(along with mountd & nfsd). I had him run a performance data collection
script & most of the time there are plenty of free pages. There are
occasional periods of extremely high CPU usage (70%user, 30%system, 0%idle)
but that doesn't seem to be the norm. The system has been up for awhile
(80 days), but I'd rather not suggest a reboot as the cure.
Any ideas/suggestions appreciated.
-Jason
[Posted by WWW Notes gateway]
T.R | Title | User | Personal Name | Date | Lines |
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9807.1 | | NNTPD::"[email protected]" | Shashi Mangalat | Sat May 17 1997 00:48 | 7 |
| Without looking at the system or a crash dump it is difficult to say why
the processes are not waking up. The fact that you can kill it implies
that the problem may be elsewhere and not with task swapping (you have to
swapin the process to kill it).
--shashi
[Posted by WWW Notes gateway]
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