From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753738AbZJZSeQ (ORCPT ); Mon, 26 Oct 2009 14:34:16 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752778AbZJZSeQ (ORCPT ); Mon, 26 Oct 2009 14:34:16 -0400 Received: from mail-yw0-f202.google.com ([209.85.211.202]:39081 "EHLO mail-yw0-f202.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752615AbZJZSeP convert rfc822-to-8bit (ORCPT ); Mon, 26 Oct 2009 14:34:15 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type:content-transfer-encoding; b=lsMuybXHpq78xvCk7DDZhlbdvo59RsW3n2YZz1ZD0ddu2meQnP9NBZswlb8kWpVXW+ p66tOIvBVxwCZoDwNhg9sQ2hXWnSh5LD/2okbR7CokTM4heedwLUSffSAFbKQS3GQcjj BWrZWC5DrFFMsEvjl2u6ImxTIzRVX7vbZkITw= MIME-Version: 1.0 In-Reply-To: <4AE24009.4090408@gmail.com> References: <4AE24009.4090408@gmail.com> Date: Mon, 26 Oct 2009 11:34:20 -0700 Message-ID: Subject: Re: PANIC: early exception 08 rip 246:10 error ffffffff810251b5 cr2 0 From: Justin Mattock To: Linux Kernel Cc: Bernhard Kaindl Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Oct 23, 2009 at 4:45 PM, Justin P. Mattock wrote: > I was looking into seeing if kdump might be able to log this in, but after > reading up > I realized that kdump is something that needs to be on then if a crash > occurs, >  then kexec to the rescue. > > Anyways I posted a picture on my facebook page of this, and also will send a > post > manually writing this down. > Basically when I use ohci1394_dma=early on the boot param > this happens. if I don't use that boot option then the system runs fine. > > [    0.000000] [] start_kernel+0x82/0x34d > [    0.000000] [] x86_64_start_reservations+0xac/0xb0 > [    0.000000] [] x86_64_start_kernel+0xf8/0x107 > PANIC: early exception 08 rip 246:10 error ffffffff810251b5 cr2 0 > [    0.000000] Pid: 0, comm: swapper Not tainted 2.6.32-rc4-00001-g1896a85 > #35 > [    0.000000] Call Trace: > [    0.000000] [] early_idt_handler+0x5e/0x71 > [    0.000000] [] ? panic+0x10c/0x12e > [    0.000000] [] ___alloc_bootmem_node+0x0/0x60 > [    0.000000] [] __alloc_bootmem+0xb/0xd > [    0.000000] [] spp_getpage+0x3a/0x6f > [    0.000000] [] fill_pte+0x22/0xde > [    0.000000] [] set_pte_vaddr_pud+0x2c/0x48 > [    0.000000] [] set_pte_vaddr+0x60/0x65 > [    0.000000] [] __native_set_fixmap+0x24/0x2c > [    0.000000] [] > init_ohci1394_dma_on_all_controllers+0x9b/0x345 > [    0.000000] [] setup_arch+0x543/0x950 > [    0.000000] [] ? printk+0x3c/0x3e > [    0.000000] [] ? > clockevents_register_notifier+0x3e/0x48 > [    0.000000] [] start_kernel+0x82/0x34d > [    0.000000] [] x86_64_start_reservations+0xac/0xb0 > [    0.000000] [] x86_64_start_kernel+0xf8/0x107 > [    0.000000] RIP 0x10 > > The system is a LFS pure64 build on an imac,macbook(both systems the > same, and both crash like this). > > Any ideas on this, and also any ideas on how I could try and grab a > syslog this early in the boot? > > Justin P. Mattock > > > I can't seem to locate a right mailing list for ieee1394 for Linux. Anyways here is a url to flickr which has the image of the PANIC: http://www.flickr.com/photos/44066293@N08/4046711653/ (hopefully you don't need to sign up to view) As for the problem, interesting thing here is if I add a printk to: if ((class == 0xffffffff)) printk(KERN_BUG "init_ohci1394_dma: finished initializing OHCI DMA\n"); continue; /* No device at this func */ the system will boot-up, and the PANIC will not occur. -- Justin P. Mattock