network and 3005
Frank Irwin
irwin at uvmark.uucp
Fri Jun 14 08:30:15 AEST 1991
In article <676362343.53 at egsgate.FidoNet.Org> Dave.Beedle at f98.n250.z1.FidoNet.Org (Dave Beedle) writes:
>
>>
>>>Recently I have the 3005 upgrade installed(RS6000/320). Since then I got
>>>a lot of trouble with the ethernet. The network crashes
>>>frequently(about twice a day, unable to rlogin, telnet, etc),
>>
>>Sounds familiar. Do the folks in Austin have any comments?
>>Systems affected are 320 with 16mb/320mb, and 520 with 16mb/600mb.
>>My 530 (64mb/2.5gb) doesn't seem to be affected... is this a hint?
>
> Add a model 530 with 16meg to the list. I post about this (or
>something very similar) a couple of weeks ago. I did talk with software
We had this problem on 3003 and 3005 on our 520 w/32MB. John Kubiak
of Tech Support finally figured out that it was an mbuf deficiency.
To see if you have the same problem, run the command:
# netstat -m
The results that I got (this was before rebooting the system, which always
cleared things up) was:
912/1024 mbufs in use:
479 mbufs allocated to data
77 mbufs allocated to packet headers
124 mbufs allocated to socket structures
215 mbufs allocated to protocol control blocks
2 mbufs allocated to routing table entries
13 mbufs allocated to socket names and addresses
2 mbufs allocated to interface addresses
469/469 mapped pages in use
2004 Kbytes allocated to network (99% in use)
293646 requests for memory denied
The numbers of mbufs in use, mapped pages in use, Kbytes allocated to network,
and requests for memory denied were the clues.
To fix this, I changed the "Maximum Kbytes of real memory allowed for MBUFS"
from 2000 to 4000 using SMIT ("Change/Show Operating System Parameters").
I also had to do the following commands:
# no -o thewall=4000
# chdev -l sys0 -a maxmbuf=4000
The system has been working fine since then, but it would always work for
a couple of weeks after rebooting, and it's only been a couple of days.
If you want to call Tech Support, the problem # is 5859.
--
===========================================================================
Frank Irwin | "The game was nothing to write home about,
Vmark Software, Inc. | Unless you were writing home for money."
..uunet!merk!uvmark!irwin | - Jesse Grant (thnx Mike)
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