From owner-freebsd-hackers@FreeBSD.ORG Wed Feb 8 15:42:13 2006 Return-Path: X-Original-To: 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 D46B016A420 for ; Wed, 8 Feb 2006 15:42:13 +0000 (GMT) (envelope-from jhb@freebsd.org) Received: from speedfactory.net (mail6.speedfactory.net [66.23.216.219]) by mx1.FreeBSD.org (Postfix) with ESMTP id 2CFB643D75 for ; Wed, 8 Feb 2006 15:42:12 +0000 (GMT) (envelope-from jhb@freebsd.org) Received: from server.baldwin.cx (unverified [66.23.211.162]) by speedfactory.net (SurgeMail 3.5b3) with ESMTP id 8016115 for multiple; Wed, 08 Feb 2006 10:41:21 -0500 Received: from localhost (john@localhost [127.0.0.1]) by server.baldwin.cx (8.13.4/8.13.4) with ESMTP id k18Fg8r6060613; Wed, 8 Feb 2006 10:42:08 -0500 (EST) (envelope-from jhb@freebsd.org) From: John Baldwin To: Anton Barsukov Date: Wed, 8 Feb 2006 10:42:11 -0500 User-Agent: KMail/1.9.1 References: <20060128142323.046e186c.greeen.anton@gmail.com> <200602061458.36037.jhb@freebsd.org> <20060208164232.46c2bed5.greeen.anton@gmail.com> In-Reply-To: <20060208164232.46c2bed5.greeen.anton@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200602081042.12890.jhb@freebsd.org> X-Virus-Scanned: ClamAV 0.87.1/1280/Tue Feb 7 05:11:53 2006 on server.baldwin.cx X-Virus-Status: Clean X-Spam-Status: No, score=-1.4 required=4.2 tests=ALL_TRUSTED autolearn=failed version=3.1.0 X-Spam-Checker-Version: SpamAssassin 3.1.0 (2005-09-13) on server.baldwin.cx X-Server: High Performance Mail Server - http://surgemail.com r=1653887525 Cc: freebsd-hackers@freebsd.org Subject: Re: kernel panic with pmap_qremove() X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 08 Feb 2006 15:42:14 -0000 On Wednesday 08 February 2006 06:42, Anton Barsukov wrote: > On Mon, 6 Feb 2006 14:58:33 -0500 > > John Baldwin wrote: > > On Saturday 28 January 2006 04:23, Anton Barsukov wrote: > > > Hi everybody > > > > > > I install ports/benchmarks/forkbomb, > > > when i run '%forkbomb -f', kernel panic. > > > > > > instruction pointer = pmap_qremove(sva=4290785280, count=0) at > > > /usr/src/sys/i386/i386/pmap.c:896 > > > > > > FreeBSD 6.0-RELEASE(GENERIC) i386 > > > machine( MB -- P4P800SE, > > > CPU -- P4 3GHz, > > > RAM -- 2x512Mb ) > > > > I wasn't able to reproduce this. Are you still able to trigger this > > panic? > > > > -- > > John Baldwin <>< http://www.FreeBSD.org/~jhb/ > > "Power Users Use the Power to Serve" = http://www.FreeBSD.org > > Yes, the panic still arises. > When I start under the user, kernel panics, under su the panic not present. > Custom kernel not panic. Hmm, the count=0 is suspect. The line numbers don't seem to line up though for pmap.c. Can you compile in DDB and KDB and capture a stack trace from ddb? -- John Baldwin <>< http://www.FreeBSD.org/~jhb/ "Power Users Use the Power to Serve" = http://www.FreeBSD.org