From owner-freebsd-arch@FreeBSD.ORG Wed Sep 29 14:24:10 2004 Return-Path: Delivered-To: freebsd-arch@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 6007D16A4CE for ; Wed, 29 Sep 2004 14:24:10 +0000 (GMT) Received: from duchess.speedfactory.net (duchess.speedfactory.net [66.23.201.84]) by mx1.FreeBSD.org (Postfix) with SMTP id EA70843D46 for ; Wed, 29 Sep 2004 14:24:09 +0000 (GMT) (envelope-from ups@tree.com) Received: (qmail 27716 invoked by uid 89); 29 Sep 2004 14:24:06 -0000 Received: from duchess.speedfactory.net (66.23.201.84) by duchess.speedfactory.net with SMTP; 29 Sep 2004 14:24:06 -0000 Received: (qmail 27698 invoked by uid 89); 29 Sep 2004 14:24:05 -0000 Received: from unknown (HELO palm.tree.com) (66.23.216.49) by duchess.speedfactory.net with SMTP; 29 Sep 2004 14:24:05 -0000 Received: from [127.0.0.1] (localhost.tree.com [127.0.0.1]) by palm.tree.com (8.12.10/8.12.10) with ESMTP id i8TEO3mt015217; Wed, 29 Sep 2004 10:24:03 -0400 (EDT) (envelope-from ups@tree.com) From: Stephan Uphoff To: Peter Holm In-Reply-To: <20040929085748.GA19695@peter.osted.lan> References: <1095468747.31297.241.camel@palm.tree.com> <1095529353.31297.1192.camel@palm.tree.com> <1096135220.53798.17754.camel@palm.tree.com> <20040926075218.GA85983@peter.osted.lan> <1096339936.3733.279.camel@palm.tree.com> <20040928074926.GA99957@peter.osted.lan> <1096383103.3733.312.camel@palm.tree.com> <20040929085748.GA19695@peter.osted.lan> Content-Type: text/plain Message-Id: <1096467843.3733.1145.camel@palm.tree.com> Mime-Version: 1.0 X-Mailer: Ximian Evolution 1.4.6 Date: Wed, 29 Sep 2004 10:24:03 -0400 Content-Transfer-Encoding: 7bit cc: Julian Elischer cc: "freebsd-arch@freebsd.org" Subject: Re: scheduler (sched_4bsd) questions X-BeenThere: freebsd-arch@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Discussion related to FreeBSD architecture List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 29 Sep 2004 14:24:10 -0000 On Wed, 2004-09-29 at 04:57, Peter Holm wrote: > On Tue, Sep 28, 2004 at 10:51:43AM -0400, Stephan Uphoff wrote: > > On Tue, 2004-09-28 at 03:49, Peter Holm wrote: > > > The system still freezes and can be unfrozen by a ping: > > > http://www.holm.cc/stress/log/stephan.html > > > > Could you try the sched_userret_patch in addition to the switch_patch? > > ( Patch is in email to arch on 25 September with the subject > > "sched_userret priority adjustment patch for sched_4bsd" > > > > Done. > > > Are you running with the current GENERIC configuration? > > ( If not could you send me your config file?) > > > > Yes. GENERIC + BREAK_TO_DEBUGGER. > > > My debug target is currently diskless - I will reconfigure it later this > > week and hopefully will be able to reproduce your freezes. > > > > Thanks > > > > Stephan > > Sorry for the late reply, but I ran into a few other problems along the way: Late reply? !!! What late reply? Are you trying to scare me? ;-) > http://www.holm.cc/stress/log/cons79.html > http://www.holm.cc/stress/log/cons80.html > > It's hard for me to tell if your patch has made any difference. > The freeze is still there. I'll try to make the same test once more > without your patches to see if I get the same pattern in freezes. I found some problems yesterday with mutex priority inheritance that could potentially cause your freeze patterns. I will try to roll a preliminary patch as soon as the caffeine does its magic. Stephan