From owner-freebsd-current@FreeBSD.ORG Wed Jan 4 18:31:41 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 6372A16A41F for ; Wed, 4 Jan 2006 18:31:41 +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 7F5B843D49 for ; Wed, 4 Jan 2006 18:31:40 +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 5278730 for multiple; Wed, 04 Jan 2006 13:33:01 -0500 Received: from localhost (john@localhost [127.0.0.1]) by server.baldwin.cx (8.13.4/8.13.4) with ESMTP id k04IVUct004504; Wed, 4 Jan 2006 13:31:33 -0500 (EST) (envelope-from jhb@freebsd.org) From: John Baldwin To: freebsd-current@freebsd.org Date: Wed, 4 Jan 2006 13:32:13 -0500 User-Agent: KMail/1.8.2 References: <17339.64774.805229.732725@roam.psg.com> <20060104184153.5c59b660@Magellan.Leidinger.net> In-Reply-To: <20060104184153.5c59b660@Magellan.Leidinger.net> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-6" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200601041332.14788.jhb@freebsd.org> X-Virus-Scanned: ClamAV 0.87.1/1229/Wed Jan 4 10:08:11 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: Randy Bush , Alexander Leidinger Subject: Re: Fatal trap 18: integer divide fault while in kernel mode 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, 04 Jan 2006 18:31:41 -0000 On Wednesday 04 January 2006 12:41 pm, Alexander Leidinger wrote: > On Wed, 4 Jan 2006 06:51:18 -1000 > > Randy Bush wrote: > > Fatal trap 18: integer divide fault while in kernel mode > > cpuid = 0; apic id = 00 > > instruction pointer = 0x20:0xc05e6295 > > stack pointer = 0x28:0xc0820d04 > > frame pointer = 0x28:0xc0820d14 > > code segment = base 0x0, limit 0xfffff, type 0x1b > > = DPL 0, pres 1, def32 1, gran 1 > > processor eflags = interrupt enabled, resume, IOPL = 0 > > current process = 0 () > > [thread pid 0 tid 0 ] > > Stopped at vm_coloring_init+0x35: idivl pq_cachenways,%eax > > db> trace > > Tracing pid 0 tid 0 td 0xc0692660 > > vm_coloring_init(3,c0820d60,c05e156a,c069d7a4,c065ad0e) at > > vm_coloring_init+0x35 vm_pageq_init(c069d7a4,c065ad0e,0,1,c04caf4b) at > > vm_pageq_init+0x9 vm_page_startup(c0c3d000,a,c0820d88,c049dbf5,0) at > > vm_page_startup+0x10a vm_mem_init(0,81e000,81ec00,81e000,0) at > > vm_mem_init+0x18 > > mi_startup() at mi_startup+0xb5 > > begin() at begin+0x2c > > Uhm... this looks like my fault... > > Can you please try the attached diff and report back if it works? > > If it doesn't work I need more debugging output: > - the content of pq_cachesize and pq_cachenways > - the line where it's panicing You should probably CTASSERT(PAGE_SIZE/1024 > 0). That should probably never be false. -- John Baldwin <>< http://www.FreeBSD.org/~jhb/ "Power Users Use the Power to Serve" = http://www.FreeBSD.org