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Date:      Wed, 14 Nov 2001 12:57:45 -0200
From:      "Marcos Martinelli" <listas@esnx.net>
To:        <freebsd-security@freebsd.org>
Subject:   RE: listrl0: no memory for tx
Message-ID:  <NFEFKFLOLCMOGLIMEBEOGEPCCNAA.listas@esnx.net>
In-Reply-To: <3BF27C9E.8700B070@centtech.com>

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This means that your network memory buffer is not enough to your network
traffic.

if you are using FreeBSD, put in your /boot/loader.conf :

kern.ipc.nmbclusters="8192"
kern.ipc.nmbufs="32768"

you can see if the problem is it with the command:  netstat -m


> [root@pituba root]# netstat -m
> 1650/2000/4096 mbufs in use (current/peak/max):
>         1469 mbufs allocated to data
>         124 mbufs allocated to packet headers
>         57 mbufs allocated to socket names and addresses
> 1024/1024/1024 mbuf clusters in use (current/peak/max)
> 2548 Kbytes allocated to network (82% of mb_map in use)
> 8436 requests for memory denied
> 71 requests for memory delayed
> 0 calls to protocol drain routines

Its nothing related to hardware problem


-----Original Message-----
From: owner-freebsd-security@FreeBSD.ORG
[mailto:owner-freebsd-security@FreeBSD.ORG]On Behalf Of Eric Anderson
Sent: Wednesday, November 14, 2001 11:16 AM
To: Sven Giersig
Cc: freebsd-security
Subject: Re: listrl0: no memory for tx


I have seen similar messages on an NFS server that was
extremely overloaded.  I did a few sysctl tweaks to the tcp
window sizes and such, and a few other things, so the
machine could keep up with the hundreds of P4's beating the
crud out of it.  If it's your firewall, I'd be looking at it
with a fine toothed comb right now.

Eric



Sven Giersig wrote:
>
> Hello List,
> since the last night I have entries in my syslog like
> listrl0: no memory for tx ... (repeated)
> rl0 is the internal interface on a fw-machine - and should have had less
traffic at night!
>
> does it mean
> - I have to add more memory?
> - my NIC is broken?
> - cable?
>
> thanks for any hints,
> Sven
>
> --
> Sven Giersig                    |
> mailto: smg@weird.dnsalias.org  | Unix Inter-Networking
> mobile: +49-172-8049514         | Directory Services
> https://weird.dnsalias.org/~smg |
>
> To Unsubscribe: send mail to majordomo@FreeBSD.org
> with "unsubscribe freebsd-security" in the body of the message

--
-------------------------------------------------------------
Eric Anderson	 anderson@centtech.com    Centaur Technology
No single raindrop believes it is to blame for the flood.
-------------------------------------------------------------

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