From owner-freebsd-current@FreeBSD.ORG Wed Aug 16 17:59:59 2006 Return-Path: X-Original-To: freebsd-current@freebsd.org Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 8183716A4E5 for ; Wed, 16 Aug 2006 17:59:59 +0000 (UTC) (envelope-from pho@holm.cc) Received: from relay02.pair.com (relay02.pair.com [209.68.5.16]) by mx1.FreeBSD.org (Postfix) with SMTP id 7A68F43D4C for ; Wed, 16 Aug 2006 17:59:57 +0000 (GMT) (envelope-from pho@holm.cc) Received: (qmail 48350 invoked from network); 16 Aug 2006 17:59:55 -0000 Received: from unknown (HELO peter.osted.lan) (unknown) by unknown with SMTP; 16 Aug 2006 17:59:55 -0000 X-pair-Authenticated: 80.165.155.106 Received: from peter.osted.lan (localhost.osted.lan [127.0.0.1]) by peter.osted.lan (8.13.6/8.13.6) with ESMTP id k7GHxtGX076118; Wed, 16 Aug 2006 19:59:55 +0200 (CEST) (envelope-from pho@peter.osted.lan) Received: (from pho@localhost) by peter.osted.lan (8.13.6/8.13.6/Submit) id k7GHxttv076117; Wed, 16 Aug 2006 19:59:55 +0200 (CEST) (envelope-from pho) Date: Wed, 16 Aug 2006 19:59:54 +0200 From: Peter Holm To: John Baldwin Message-ID: <20060816175954.GA75956@peter.osted.lan> References: <20060816155310.GA64420@peter.osted.lan> <200608161256.37149.jhb@freebsd.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <200608161256.37149.jhb@freebsd.org> User-Agent: Mutt/1.4.2.1i Cc: freebsd-current@freebsd.org, current@freebsd.org Subject: Re: Livelock while accessing /tmp X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 16 Aug 2006 17:59:59 -0000 On Wed, Aug 16, 2006 at 12:56:36PM -0400, John Baldwin wrote: > On Wednesday 16 August 2006 11:53, Peter Holm wrote: > > While stress testing GENERIC HEAD from Aug 12 12:55 UTC I got this > > lock whenever a proccess accesses /tmp via a loopback nfs mount. > > More info @ http://people.freebsd.org/~pho/stress/log/cons205.html > > FYI, 'show sleepchain ' will directly show the deadlock in the future. I > have a gdb script equivalent I can give you to run on the core dump if you > want. > > -- > John Baldwin Yes, please. I saw your commit yesterday, but didn't realize that the sleepchain was already in the source. -- Peter Holm