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Date:      Mon, 19 Jul 1999 16:45:10 -0400 (EDT)
From:      David Coder <dacoder@dcoder.com>
To:        Robert Beer <r-beer@onu.edu>
Cc:        Tim Pushor <timp@orion.ab.ca>, questions@FreeBSD.ORG
Subject:   Re: 'Out of buffer space' problem
Message-ID:  <Pine.BSF.4.10.9907191643200.42671-100000@doc.dcoder.com>
In-Reply-To: <l03130335b3b91acdf341@[140.228.15.35]>

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On Mon, 19 Jul 1999, Robert Beer wrote:

> At 1:34 PM -0400 7/19/1999, Tim Pushor wrote:
> >I work for a rather large organization and have convinced management to
> >replace our aging AIX SMTP relays/DNS servers with Compaq Servers running
> >FreeBSD. Saturday I had officially turned off our old AIX boxes and were
> >running on pure FreeBSD boxes.
> >
> >On the first full day of production, half way through (today) one of the
> >boxes that the companies primary DNS was running on stopped responding. The
> >error I was getting was 'out of buffer space'.
> 
> Use netstat -m to check on mbufs.  Check the network connections with netstat -anfinet 
> 
> If this is running low you will need to compile a custom kernel and increase this to maybe 4096.
> 
> You may also want to check on maxusers and set that up to 128.
> 
> >Can anyone out there help me track the problem down? I know there can be
> >several factors involved, but I *really* have to get this one licked rather
> >quickly.
> 
> Watch the logs in the /var/log directory.  Look at man pages for the commands:
> 
> 	top
> 	vmstat
> 	iostat
> 
> ---
> Bob Beer <r-beer@onu.edu>
> Ohio Northern University, Academic Computer Services, Ada, OH  45810
> 
> 
> 
> 
> To Unsubscribe: send mail to majordomo@FreeBSD.org
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> 

I've seen mbufs set as high as 32768.

dc
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