From owner-freebsd-net@FreeBSD.ORG  Tue Apr  8 06:50:23 2003
Return-Path: <owner-freebsd-net@FreeBSD.ORG>
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 9615437B401
	for <freebsd-net@freebsd.org>; Tue,  8 Apr 2003 06:50:23 -0700 (PDT)
Received: from xorpc.icir.org (xorpc.icir.org [192.150.187.68])
	by mx1.FreeBSD.org (Postfix) with ESMTP id DDB6643F3F
	for <freebsd-net@freebsd.org>; Tue,  8 Apr 2003 06:50:22 -0700 (PDT)
	(envelope-from rizzo@xorpc.icir.org)
Received: from xorpc.icir.org (localhost [127.0.0.1])
	by xorpc.icir.org (8.12.8p1/8.12.3) with ESMTP id h38DoMBp004606;
	Tue, 8 Apr 2003 06:50:22 -0700 (PDT)
	(envelope-from rizzo@xorpc.icir.org)
Received: (from rizzo@localhost)
	by xorpc.icir.org (8.12.8p1/8.12.3/Submit) id h38DoM58004605;
	Tue, 8 Apr 2003 06:50:22 -0700 (PDT)
	(envelope-from rizzo)
Date: Tue, 8 Apr 2003 06:50:22 -0700
From: Luigi Rizzo <rizzo@icir.org>
To: Steve Shorter <steve@nomad.tor.lets.net>
Message-ID: <20030408065022.A4568@xorpc.icir.org>
References: <20030408133419.GA17964@nomad.lets.net>
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
User-Agent: Mutt/1.2.5.1i
In-Reply-To: <20030408133419.GA17964@nomad.lets.net>;
	from steve@nomad.tor.lets.net on Tue, Apr 08, 2003 at 09:34:19AM -0400
cc: freebsd-net@freebsd.org
Subject: Re: poll stalled?
X-BeenThere: freebsd-net@freebsd.org
X-Mailman-Version: 2.1.1
Precedence: list
List-Id: Networking and TCP/IP with FreeBSD <freebsd-net.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-net>,
	<mailto:freebsd-net-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-net>
List-Post: <mailto:freebsd-net@freebsd.org>
List-Help: <mailto:freebsd-net-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-net>,
	<mailto:freebsd-net-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Tue, 08 Apr 2003 13:50:24 -0000

inaccessibility is (possibly) coming from a bug in setting the
watchdog in the fxp (and other) drivers, long since fixed I believe.

On top of this, the '...stalled' messages come out when some
interrupt handlers take longer than one timer tick, something
that happens frequently e.g. when there is a change in the PHY
of the medium, and also for other reasons.

	cheers
	luigi

On Tue, Apr 08, 2003 at 09:34:19AM -0400, Steve Shorter wrote:
> Howdy!
> 
> 	I have a server, FreeBSD 4.6.2, with 3 fxp network interfaces,
> polling enabled, kern.polling.user_frac is 50, and kernel
> compiled with Hz = 1000.
> 
> 	It became inaccessable over the network and when I logged in
> over the console the following message(s) were written to it...
> 
> 	:
> 	poll [14322] stalled in phase 2
> 	poll [14323] stalled in phase 2
> 	:
> 
> 	etc..
> 
> 	What causes this? Is it a bug or an indication for tuning?
> The only tunables for polling that I know of is Hz and the user_frac sysclt
> 
> 
> 	Is there a fix for this?
> 
> 	thanx - steve
> 	
> _______________________________________________
> freebsd-net@freebsd.org mailing list
> http://lists.freebsd.org/mailman/listinfo/freebsd-net
> To unsubscribe, send any mail to "freebsd-net-unsubscribe@freebsd.org"