All network ports in use

[Mattias Lundström]

Hi!

I have this problem with a Motorola system running AIX 4.1.4. The
users can't telnet to the machine, the error messages are:
"All available network ports in use" and "A memory address is not in
the address space for the process" When it happens the only solution
is to reboot the system.

I've increased the number of PTY's, licenses and processer/user, but
nothing has helped.

/Mattias Lundström
Please reply to this address:
ma...@wmdata.com

[Hani Saliba]

>I have this problem with a Motorola system running AIX 4.1.4. The
>users can't telnet to the machine, the error messages are:
>"All available network ports in use" and "A memory address is not in
>the address space for the process" When it happens the only solution
>is to reboot the system.

I had the same problem and I was able to solve it by increasing MBUFS. I
suspect this problem to be caused by some tcp/ip connections. The machine
that had this problem runs ORACLE on it, and waits for tcp/ip connections
from ORACLE clients. To fix this problem, I have increase my MBUFS by 4
times its original value.

I was also told, although I never checked, this problem could be some bug
in AIX and that there was an available fix for that
_______________________________________________
Hani Saliba
ha...@management.mcgill.ca

Faculty of Management
McGill University
1001, Sherbrooke West
Montreal, Canada H3A 1G5
Phone: (514) 398-1247
Fax: (514) 398-3876

[Case [rabid admin]]

In article <33ef77a6...@news.algonet.se>, Mattias Lundström wrote:
>Hi!

>
>I have this problem with a Motorola system running AIX 4.1.4. The
>users can't telnet to the machine, the error messages are:
>"All available network ports in use" and "A memory address is not in
>the address space for the process" When it happens the only solution
>is to reboot the system.
>

>I've increased the number of PTY's, licenses and processer/user, but
>nothing has helped.

This is usually because pty0 is corrputed. Get all the users off the system,
login on the console and
rmdev -l pty0
mkdev -l pty0

? who @ where ! why ?
? Craig Anthony @ The Rabid Demention ! '97 Saturn SC2 ?
? ca...@rabid.org @ http://www.rabid.org ! the forbidden fruit ?
? Reismeister @ Austin, Texas ! lack of other futility ?

[Case [rabid admin]]

>I had the same problem and I was able to solve it by increasing MBUFS. I
>suspect this problem to be caused by some tcp/ip connections. The machine
>that had this problem runs ORACLE on it, and waits for tcp/ip connections
>from ORACLE clients. To fix this problem, I have increase my MBUFS by 4
>times its original value.
>
>I was also told, although I never checked, this problem could be some bug
>in AIX and that there was an available fix for that

This can also be if your mbufs are set obscenely low...check with
no -a|grep thewall
this value is in kb and should be set to 25-50% of your real memory.
[usu. 25%]
you can set it with
no -o thewall=16384 [the default]