From owner-freebsd-stable@FreeBSD.ORG Tue Oct 7 13:37:12 2008 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id EBA111065686 for ; Tue, 7 Oct 2008 13:37:12 +0000 (UTC) (envelope-from jdc@koitsu.dyndns.org) Received: from QMTA03.emeryville.ca.mail.comcast.net (qmta03.emeryville.ca.mail.comcast.net [76.96.30.32]) by mx1.freebsd.org (Postfix) with ESMTP id C9B418FC25 for ; Tue, 7 Oct 2008 13:37:12 +0000 (UTC) (envelope-from jdc@koitsu.dyndns.org) Received: from OMTA06.emeryville.ca.mail.comcast.net ([76.96.30.51]) by QMTA03.emeryville.ca.mail.comcast.net with comcast id Pp0X1a00F16AWCUA3pdC2a; Tue, 07 Oct 2008 13:37:12 +0000 Received: from koitsu.dyndns.org ([69.181.141.110]) by OMTA06.emeryville.ca.mail.comcast.net with comcast id PpdA1a00L2P6wsM8SpdBDm; Tue, 07 Oct 2008 13:37:12 +0000 X-Authority-Analysis: v=1.0 c=1 a=8-XLinYytlwA:10 a=QycZ5dHgAAAA:8 a=-KCyCjSjY2W46-AAzhgA:9 a=_YwSI2J-dHONWJqKsHNZVHZY98AA:4 a=EoioJ0NPDVgA:10 a=LY0hPdMaydYA:10 Received: by icarus.home.lan (Postfix, from userid 1000) id CBFA8C9419; Tue, 7 Oct 2008 06:37:10 -0700 (PDT) Date: Tue, 7 Oct 2008 06:37:10 -0700 From: Jeremy Chadwick To: Gerrit =?iso-8859-1?Q?K=FChn?= Message-ID: <20081007133710.GA50114@icarus.home.lan> References: <20080807132947.061d24eb.gerrit@pmp.uni-hannover.de> <489B7D62.4080606@delphij.net> <20080814084637.97997c02.gerrit@pmp.uni-hannover.de> <200808230750.09774.jhb@freebsd.org> <20080825094923.d2d29148.gerrit@pmp.uni-hannover.de> <20080825075332.GA64793@eos.sc1.parodius.com> <20080827111629.eba80560.gerrit@pmp.uni-hannover.de> <20081007133801.00349649.gerrit@pmp.uni-hannover.de> <20081007143724.a01502e4.gerrit@pmp.uni-hannover.de> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20081007143724.a01502e4.gerrit@pmp.uni-hannover.de> User-Agent: Mutt/1.5.18 (2008-05-17) Cc: freebsd-stable@freebsd.org, jeff@freebsd.org, d@delphij.net, John Baldwin Subject: Re: Regression 7.0R -> 7-stable? X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 07 Oct 2008 13:37:13 -0000 On Tue, Oct 07, 2008 at 02:37:24PM +0200, Gerrit Kühn wrote: > On Tue, 7 Oct 2008 13:38:01 +0200 Gerrit Kühn > wrote about Re: Regression 7.0R -> 7-stable?: > > [...] > > GK> However, yesterday I upgraded the system to a recent 7-stable > GK> codebase, and now it locks again hard after probing the CPU cores. My > GK> setup remained exactly the same, the new code just does not work. > GK> Please let me know what I have do to provide further information. > > Well, comparing the kernel setups again I found one thing that makes a > difference: The scheduler (somewhen SCHED_ULE has been declared the > default). > SCHED_ULE is crashing the system, SCHED_4BSD works fine... This is of great concern if in fact that's true. I'm adding Jeff Roberson, author of the ULE/SMP2.0 code, to the CC. -- | Jeremy Chadwick jdc at parodius.com | | Parodius Networking http://www.parodius.com/ | | UNIX Systems Administrator Mountain View, CA, USA | | Making life hard for others since 1977. PGP: 4BD6C0CB |