From owner-freebsd-stable@FreeBSD.ORG Thu Sep 24 13:16:34 2009 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 5DC1710656AA for ; Thu, 24 Sep 2009 13:16:34 +0000 (UTC) (envelope-from asmrookie@gmail.com) Received: from mail-bw0-f227.google.com (mail-bw0-f227.google.com [209.85.218.227]) by mx1.freebsd.org (Postfix) with ESMTP id C421F8FC27 for ; Thu, 24 Sep 2009 13:16:33 +0000 (UTC) Received: by bwz27 with SMTP id 27so1226349bwz.43 for ; Thu, 24 Sep 2009 06:16:32 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:sender:received:in-reply-to :references:date:x-google-sender-auth:message-id:subject:from:to:cc :content-type; bh=bSvK4eUtMmtPYw9UlINmC2jpm5aqBWo94d+0AT0QARw=; b=P7Z7dpH2EykmCp5XAziIPdjoUJrJ/T8zfxmr9XyQPVt77ghwhOmPNYbXM0/jenJE1c 2dZKxV5ikJyaMCDrsqSYjrBvUjSskwjD2aQ9yGezCmbz/FdgJ16JdpFu4ewbqKVRpeWQ gvtXxnkhODSk+z/qldTWqYKnFgxvhQ1tZCkfo= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:sender:in-reply-to:references:date :x-google-sender-auth:message-id:subject:from:to:cc:content-type; b=eAiQoCUvnt3H+ybdDQDVuxeIZ03+AI0DnC3A4fT298VESOxFND/+KArVVDez5kqUK8 KorvdIHr5UbXO5mMGTlMy6drJUVeuMgfYLBj45KLC8CWAPpWVs9/nkfeTElpb/EIqN8Z seWPUmeamEs/cucvpll/lkWpZ1pRwePHUFy6E= MIME-Version: 1.0 Sender: asmrookie@gmail.com Received: by 10.223.143.79 with SMTP id t15mr1275451fau.13.1253798192066; Thu, 24 Sep 2009 06:16:32 -0700 (PDT) In-Reply-To: <200909241455.32216.doconnor@gsoft.com.au> References: <200909232322.51060.doconnor@gsoft.com.au> <3bbf2fe10909230654g2030b18aq8a93e26a7789b06f@mail.gmail.com> <200909241455.32216.doconnor@gsoft.com.au> Date: Thu, 24 Sep 2009 15:16:32 +0200 X-Google-Sender-Auth: fc719c12c7d1e15b Message-ID: <3bbf2fe10909240616k18de2bf8mbadb7526a46f1f58@mail.gmail.com> From: Attilio Rao To: "Daniel O'Connor" Content-Type: text/plain; charset=UTF-8 Cc: freebsd-stable@freebsd.org Subject: Re: 8.0-RC1 panic attaching ppc 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: Thu, 24 Sep 2009 13:16:34 -0000 2009/9/24 Daniel O'Connor : > On Wed, 23 Sep 2009, Attilio Rao wrote: >> 2009/9/23 Daniel O'Connor : >> > If I enable the parallel port on this Gigabyte MA7785GM-US2H I get >> > a trap 12 when booting up. >> > >> > I forgot to take a picture of it at the time but I should be able >> > to reproduce it tomorrow. >> > >> > Has anyone seen anything before? (a quick google showed nothing). I >> > did not see it on 7.2(ish) on the same hardware. >> >> Are you able to enable KDB in your kernel config and return a >> backtrace here? > > Yes, here it is.. > > pmap_extract() at pmap_extract+0x13a > isa_dmarangecheck() at isa_dmarangecheck+0x7a > isa_dma_init() at isa_dma_init+0xda > ppc_isa_attach() at ppc_sa_attach+0x40 > device_attach() at device_attach+0x69 > bus_generic_attach() at bus_generic_attach+0x1a > acpi_attach() at acpi_attach+0x9f8 > > (there's more but I imagine the above is probably sufficient). > > I took pictures, they are here > http://www.gsoft.com.au/~doconnor/SNC00111.jpg > http://www.gsoft.com.au/~doconnor/SNC00112.jpg > > If I put the parallel port in EPP mode then it works, I presume that's > because it doesn't require a DMA channel whereas ECP doesn't. I haven't > enumerated the possibilities though :) Can you try to get a kernel dump that we can analyze? You would just need to recompile the kernel with options KDB, GDB and debugging symbols. Then we can do more on that. Thanks, Attilio -- Peace can only be achieved by understanding - A. Einstein