From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262443AbTJGP4z (ORCPT ); Tue, 7 Oct 2003 11:56:55 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262444AbTJGP4y (ORCPT ); Tue, 7 Oct 2003 11:56:54 -0400 Received: from enigma.barak.net.il ([212.150.48.99]:30607 "EHLO enigma.barak.net.il") by vger.kernel.org with ESMTP id S262443AbTJGP4w convert rfc822-to-8bit (ORCPT ); Tue, 7 Oct 2003 11:56:52 -0400 From: "Amir Hermelin" To: Subject: Format of an 'oops' call trace (in show_trace) Date: Tue, 7 Oct 2003 17:56:38 +0200 Organization: Montilio Message-ID: <00d101c38ceb$9ad4daf0$0401a8c0@CARTMAN> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 8BIT X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.4510 Importance: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1165 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org 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. Thanks for any help, Amir. 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