From owner-freebsd-net  Wed Nov 20 23: 5:31 2002
Delivered-To: freebsd-net@freebsd.org
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP
	id DF43E37B401; Wed, 20 Nov 2002 23:05:30 -0800 (PST)
Received: from silver.he.iki.fi (silver.he.iki.fi [193.64.42.241])
	by mx1.FreeBSD.org (Postfix) with ESMTP
	id 9AD6A43E3B; Wed, 20 Nov 2002 23:05:29 -0800 (PST)
	(envelope-from pete@he.iki.fi)
Received: from PHE (silver.he.iki.fi [193.64.42.241])
	by silver.he.iki.fi (8.12.6/8.11.4) with SMTP id gAL75DuO045715;
	Thu, 21 Nov 2002 09:05:21 +0200 (EET)
	(envelope-from pete@he.iki.fi)
Message-ID: <126801c2912c$5be3cec0$862a40c1@PHE>
From: "Petri Helenius" <pete@he.iki.fi>
To: "David Schultz" <dschultz@uclink.Berkeley.EDU>
Cc: <freebsd-questions@FreeBSD.ORG>, <freebsd-net@FreeBSD.ORG>
References: <0e3b01c28fc4$ff9a4ee0$862a40c1@PHE> <20021119152114.GA2228@HAL9000.homeunix.com> <3DDBDE2B.6050407@he.iki.fi> <20021120195919.GA679@HAL9000.homeunix.com> <11fd01c290eb$f48311e0$862a40c1@PHE> <20021121022524.GA2300@HAL9000.homeunix.com>
Subject: Re: panic: kmem_map too small
Date: Thu, 21 Nov 2002 09:05:13 +0200
MIME-Version: 1.0
Content-Type: text/plain;
	charset="iso-8859-1"
Content-Transfer-Encoding: 8bit
X-Priority: 3
X-MSMail-Priority: Normal
X-Mailer: Microsoft Outlook Express 6.00.2800.1106
X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106
Sender: owner-freebsd-net@FreeBSD.ORG
Precedence: bulk
List-ID: <freebsd-net.FreeBSD.ORG>
List-Archive: <http://docs.freebsd.org/mail/> (Web Archive)
List-Help: <mailto:majordomo@FreeBSD.ORG?subject=help> (List Instructions)
List-Subscribe: <mailto:majordomo@FreeBSD.ORG?subject=subscribe%20freebsd-net>
List-Unsubscribe: <mailto:majordomo@FreeBSD.ORG?subject=unsubscribe%20freebsd-net>
X-Loop: FreeBSD.org

> > With about 150M in use and KVA_PAGES undefined in config (default),
> > both 4.7-STABLE and 5.0-CURRENT panic (1G installed memory).
>
> Yes, the default is 256, IIRC.  That corresponds to 1 GB of KVA,
> and you have only 1 GB of physical memory to back it.  I take it
> this is a very busy machine.  Short of getting more memory, you
> can decrease memory utilization by the network, e.g. by decreasing
> TCP window sizes, or you can limit memory usage by the network so
> you don't get panics.  I forget the details here, so perhaps
> someone else can fill them in.
>
The thing I´m concerned about that if with 150M kernel memory usage and
>200M free and >300M inact memory the system panics, how much "extra"
memory is needed to keep it running? And the swap is never touched.

Pete


To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-net" in the body of the message