From owner-freebsd-hackers@FreeBSD.ORG  Fri Jun 25 10:52:12 2004
Return-Path: <owner-freebsd-hackers@FreeBSD.ORG>
Delivered-To: freebsd-hackers@freebsd.org
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP
	id 1CD0D16A4CE; Fri, 25 Jun 2004 10:52:12 +0000 (GMT)
Received: from salmon.maths.tcd.ie (salmon.maths.tcd.ie [134.226.81.11])
	by mx1.FreeBSD.org (Postfix) with SMTP
	id EFAB143D39; Fri, 25 Jun 2004 10:52:10 +0000 (GMT)
	(envelope-from dwmalone@maths.tcd.ie)
Received: from walton.maths.tcd.ie by salmon.maths.tcd.ie with SMTP
          id <aa98290@salmon>; 25 Jun 2004 11:51:59 +0100 (BST)
Date: Fri, 25 Jun 2004 11:51:59 +0100
From: David Malone <dwmalone@maths.tcd.ie>
To: Danny Braniss <danny@cs.huji.ac.il>
Message-ID: <20040625105159.GA41051@walton.maths.tcd.ie>
References: <Pine.NEB.3.96L.1040624232902.26400C-100000@fledge.watson.org>
	<20040625061757.9D05A43D5A@mx1.FreeBSD.org>
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <20040625061757.9D05A43D5A@mx1.FreeBSD.org>
User-Agent: Mutt/1.5.3i
Sender: dwmalone@maths.tcd.ie
cc: freebsd-hackers@freebsd.org
cc: Robert Watson <rwatson@freebsd.org>
Subject: Re: waiting on sbwait
X-BeenThere: freebsd-hackers@freebsd.org
X-Mailman-Version: 2.1.1
Precedence: list
List-Id: Technical Discussions relating to FreeBSD
	<freebsd-hackers.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-hackers>,
	<mailto:freebsd-hackers-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-hackers>
List-Post: <mailto:freebsd-hackers@freebsd.org>
List-Help: <mailto:freebsd-hackers-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-hackers>,
	<mailto:freebsd-hackers-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Fri, 25 Jun 2004 10:52:12 -0000

On Fri, Jun 25, 2004 at 09:17:01AM +0300, Danny Braniss wrote:
> it's definetly NFS related, i/you can cause this to happen at will,
> ie: ls /net/host where host is down. the /net is a amd trigger which will
> try and mount via nfs all of host's exports.

In that case, the "sbwait" is the kernel waiting for the unresponsive
NFS server (or maybe amd) to reply. There's not much you can do
about that other than change your amd or nfs configuration to give
up if the server is unresponsive.

	David.