From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262725AbTJGTfV (ORCPT ); Tue, 7 Oct 2003 15:35:21 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262731AbTJGTfV (ORCPT ); Tue, 7 Oct 2003 15:35:21 -0400 Received: from fw.osdl.org ([65.172.181.6]:14468 "EHLO mail.osdl.org") by vger.kernel.org with ESMTP id S262725AbTJGTfN (ORCPT ); Tue, 7 Oct 2003 15:35:13 -0400 Date: Tue, 7 Oct 2003 12:26:31 -0700 From: "Randy.Dunlap" To: "Amir Hermelin" Cc: linux-kernel@vger.kernel.org Subject: Re: Format of an 'oops' call trace (in show_trace) Message-Id: <20031007122631.4f028e62.rddunlap@osdl.org> In-Reply-To: <00d101c38ceb$9ad4daf0$0401a8c0@CARTMAN> References: <00d101c38ceb$9ad4daf0$0401a8c0@CARTMAN> Organization: OSDL X-Mailer: Sylpheed version 0.9.4 (GTK+ 1.2.10; i686-pc-linux-gnu) X-Face: +5V?h'hZQPB9kW Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 7 Oct 2003 17:56:38 +0200 "Amir Hermelin" wrote: | Hi, | Can someone please point me to a description of what I see in the Call of | the oops dump? I tried looking into show_trace and lookup_symbol functions, | but I couldn't understand some things. For example, in this following | trace: | Oct 7 17:13:54 joji kernel: [] reqrdata [mymod] 0x0 (0xd5543fb4)) | | Oct 7 17:13:54 joji kernel: [] mymod [mymod] 0x0 (0xd5543fe0)) | I don't understand the relevance to reqrdata (since it's not a function, but | a data structure, and isn't the parameter to the mymod function). | And could | someone please explain what the 0x0 in the lines mean? From the code I | understood it to be the offset of the symbol within the module, but that | can't be right if both symbols translate to the same offset - so I must've | understood it wrong. Hi, What kernel version is this? Any patches applied to it? ~Randy | Oct 7 17:13:54 joji kernel: printing eip: | Oct 7 17:13:54 joji kernel: e01b090b | Oct 7 17:13:54 joji kernel: *pde = 00000000 | Oct 7 17:13:54 joji kernel: Oops: 0002 | Oct 7 17:13:54 joji kernel: nfsd nfs lockd sunrpc bcm5700 parport_pc lp | parport autofs sg sr_mod ide-scsi scsi_mod ide-cd cdrom key mymod bdev | mousedev hid input usb-uhci ehci-hcd usbcore ext3 | Oct 7 17:13:54 joji kernel: CPU: 0 | Oct 7 17:13:54 joji kernel: EIP: 0060:[] Not tainted | Oct 7 17:13:54 joji kernel: EFLAGS: 00010282 | Oct 7 17:13:54 joji kernel: | Oct 7 17:13:54 joji kernel: EIP is at rtp_recv [mymod] 0x5b | (2.4.20-8custom) | Oct 7 17:13:54 joji kernel: eax: 00000000 ebx: d5542000 ecx: 00000001 | edx: c0374c88 | Oct 7 17:13:54 joji kernel: esi: e01bae00 edi: d76aa400 ebp: d5543fcc | esp: d5543f98 | Oct 7 17:13:54 joji kernel: ds: 0068 es: 0068 ss: 0068 | Oct 7 17:13:54 joji kernel: Process mymod (pid: 6978, stackpage=d5543000) | Oct 7 17:13:54 joji kernel: Stack: e01bae00 d76aa400 d5542000 00000000 | d76aa400 ffffffff e01a5308 e01bae00 | Oct 7 17:13:54 joji kernel: d76aa400 d5543fcc d5542000 d5542000 | dbd15900 00000000 d54f3fd0 d5533fd0 | Oct 7 17:13:54 joji kernel: d5542000 00000000 e01a5220 00000000 | 00000000 00000000 c010742d d76aa400 | Oct 7 17:13:54 joji kernel: Call Trace: [] reqrdata [mymod] 0x0 | (0xd5543f98)) | Oct 7 17:13:54 joji kernel: [] mymod [mymod] 0xe8 (0xd5543fb0)) | Oct 7 17:13:54 joji kernel: [] reqrdata [mymod] 0x0 (0xd5543fb4)) | | Oct 7 17:13:54 joji kernel: [] mymod [mymod] 0x0 (0xd5543fe0)) | Oct 7 17:13:54 joji kernel: [] kernel_thread_helper [kernel] 0x5 | (0xd5543ff0)) | Oct 7 17:13:54 joji kernel: | Oct 7 17:13:54 joji kernel: | Oct 7 17:13:54 joji kernel: Code: ff 40 1c 8b 56 10 8b 52 1c 89 97 98 01 00 | 00 01 50 24 89 7c