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Date: Wed, 5 Nov 1997 19:02:00 -0700 (MST)
From: Marc Slemko <marcs@znep.com>
To: "Gregory, Scott, SrA, SAF/AADXT" <gregorys@af.pentagon.mil>
cc: "'freebsd-questions@freebsd.org'" <freebsd-questions@FreeBSD.ORG>
Subject: Re: Need Help Determining Why My System Keeps Crashing
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On Wed, 5 Nov 1997, Gregory, Scott, SrA, SAF/AADXT wrote:

> I have a web server running FreeBSD 2.2.2.  I have been experiencing
> random crashes and until today have not gotten any info as to why.  I
> caught the server before it rebooted and was able to get this
> information from the console:
> 
> Nov  5 10:44:02 afpubs /kernel: Out of mbuf clusters - increase
> maxusers!

Well, have you tried doing what it says?

> ***********************************************
> Kernel Configuration File:
> 
> machine         "i386"
> #cpu            "I386_CPU"
> #cpu            "I486_CPU"
> #cpu            "I586_CPU"
> cpu             "I686_CPU"
> ident           "AFPUBS"
> maxusers        30
maxusers	128

(or even 256)

> 
> options         "MAXMEM=98304"

If you have 128 megs of RAM, you are only using 96 with this setup.

You should be able to handle around 400 httpd process w/128 megs of RAM
without much trouble if nothing else is going on.