Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932671AbWEXNcX (ORCPT ); Wed, 24 May 2006 09:32:23 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932741AbWEXNcX (ORCPT ); Wed, 24 May 2006 09:32:23 -0400 Received: from elasmtp-spurfowl.atl.sa.earthlink.net ([209.86.89.66]:22457 "EHLO elasmtp-spurfowl.atl.sa.earthlink.net") by vger.kernel.org with ESMTP id S932671AbWEXNcW (ORCPT ); Wed, 24 May 2006 09:32:22 -0400 Message-ID: <44746064.30607@netwolves.com> Date: Wed, 24 May 2006 09:32:20 -0400 From: Steve Clark User-Agent: Mozilla/5.0 (X11; U; FreeBSD i386; en-US; rv:1.7.12) Gecko/20051110 X-Accept-Language: en-us, en MIME-Version: 1.0 To: linux-kernel@vger.kernel.org Subject: uclinux 2.4.32 panic Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit X-ELNK-Trace: a437fbc6971e80f61aa676d7e74259b7b3291a7d08dfec79f25030b2f19cfc4237136b5aad68a403350badd9bab72f9c350badd9bab72f9c350badd9bab72f9c X-Originating-IP: 63.122.229.22 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 8802 Lines: 233 Hello, I realize this is uClinux - but I received no response from the uclinux-devel list so I am posting here in the hope that someone will be kind enough to at least give me a direction in which to proceed in trying to track down this panic. It only seems to happen under heavy traffic - especially outbound, in other words ethernet to modem to internet. I am having trouble with cnxtserial.c causing a panic on an actiontec dualpc modem. I've looked at the code but can't figure out how I can be getting a null pointer. I have very limited experience working in the kernel so if anyone can give somethings to try I would appreciate it. Below is the output from ksymoops of the panic. Thanks, Steve ksymoops 2.4.11 on i686 2.6.16-1.2122_FC5. Options used -v /home/sclark/actiontec/linux-2.4.32/vmlinux (specified) -K (specified) -L (specified) -O (specified) -m ../System.map (specified) -t elf32-littlearm -a armnommu # Unable to handle kernel NULL pointer dereference at virtual address 0000003f Internal error: Oops: ffffffff CPU: 0 pc : [<0090e5fc>] lr : [<008727cc>] Not tainted sp : 0098bc14 ip : 7e17685d fp : 0098bc38 r10: 00a10000 r9 : 173706d5 r8 : 800e000a r7 : 08010100 r6 : 00dc08d0 r5 : 24108090 r4 : c914d625 r3 : 6c9c0a91 r2 : 00000018 r1 : 009922b8 r0 : c3400038 Flags: nzCv IRQs off FIQs on Mode SVC_32 Segment user Control: C000107D Process ksoftirqd_CPU0 (pid: 3, stackpage=0098b000) 0098bc00: 008727cc 0090e5fc 20000093 ffffffff 00000038 00000000 00992 0098bc20: 00000038 00956228 20000013 0098bc6c 0098bc3c 008727cc 0090e3b0 00000 0098bc40: 00000000 00992200 00000038 0099221c 0094ce68 00000000 00000001 00a10 0098bc60: 0098bc98 0098bc70 008820e0 00872694 00992200 00a29760 00a29760 00994 0098bc80: 00000034 00000000 009ea9e2 0098bcb0 0098bc9c 00882004 00882024 00994 0098bca0: 00000000 0098bcc8 0098bcb4 008794f4 00881fd4 0000002f 00a29760 0098b 0098bcc0: 0098bccc 008793c0 00879434 0098bcd4 00000001 009ea9e2 00994d64 00994 0098bce0: 00000000 0094ce68 00994d60 00000000 0098bd1c 0098bd00 00878e04 00878 0098bd00: 00a24080 009edec0 009edec0 00992400 0098bd44 0098bd20 00878b60 00878 0098bd20: 00a24080 00992400 009edec0 00000000 008b7744 00000002 0098bd60 0098b 0098bd40: 008a9c74 0087891c 0094ce68 0094ce60 00992400 0098bd80 0098bd64 0089e 0098bd60: 008a9c1c 00000001 009edec0 00000000 00000000 0098bd9c 0098bd84 008b7 0098bd80: 0089ea64 00000001 00000004 00992400 0098bde0 0098bda0 008a8fec 008b7 0098bda0: 00992400 0098bdb0 008b7744 80000000 00964ac0 009edec0 009edec0 009ed 0098bdc0: 00992400 0093ded4 008b4204 00000000 00000002 0098be08 0098bde4 008b5 0098bde0: 008a8ea4 00992400 008b7744 80000000 009edec0 00000002 00992400 0098b 0098be00: 0098be0c 008b4258 008b5730 00000001 0098be60 0098be20 008a8fec 008b4 0098be20: 00992400 0098be30 008b4204 80000000 00964ab0 009edec0 009edef0 009ed 0098be40: 000005f4 00992400 008b29e0 00000000 00000002 0098be8c 0098be64 008b4 0098be60: 008a8ea4 00992400 008b4204 80000000 00a243a0 0093ded4 009edec0 0093d 0098be80: 0098bebc 0098be90 008b2c08 008b3f38 0093ded4 00000005 00000000 00000 0098bea0: 0093ded4 00000001 00000000 00000000 0098bf00 0098bec0 008a8fec 008b2 0098bec0: 00000000 0098bed0 008b29e0 80000000 00964aa0 009edec0 00000005 009ed 0098bee0: 009edec0 00965500 0093ded4 00036356 009381a0 0098bf38 0098bf04 008b2 0098bf00: 008a8ea4 00000000 008b29e0 80000000 009edec0 0093fc1c 009edec0 00000 0098bf20: 00000008 00000001 0098bf88 0098bf54 0098bf3c 0089f54c 008b2284 0093d 0098bf40: 009381cc 009381ac 0098bf84 0098bf58 0089f65c 0089f2ec 00000040 00938 0098bf60: 009381cc 009381a0 009381bc 00036356 60000013 0094d224 0098bfb0 0098b 0098bf80: 0089f7dc 0089f5c4 0000012c 00938090 00000003 fffffff2 0094ce60 00000 0098bfa0: 00938080 0098bfdc 0098bfb4 0081e090 0089f754 0098a000 0098a000 0098a 0098bfc0: 0094ce60 00938d48 41029402 0080ae58 0098bffc 0098bfe0 0081e70c 0081d 0098bfe0: 00000000 0097e000 0081e674 00945730 00000000 0098c000 00810f28 0081e Backtrace: Function entered at [<0090e3a0>] from [<008727cc>] r9 = 20000013 r8 = 00956228 r7 = 00000038 r6 = 009922A0 r5 = 00000000 r4 = 00000038 Function entered at [<00872684>] from [<008820e0>] Function entered at [<00882014>] from [<00882004>] Function entered at [<00881fc4>] from [<008794f4>] r5 = 00000000 r4 = 00994D60 Function entered at [<00879424>] from [<008793c0>] r5 = 00A29760 r4 = 0000002F Function entered at [<00878ebc>] from [<00878e04>] Function entered at [<00878d60>] from [<00878b60>] r7 = 00992400 r6 = 009EDEC0 r5 = 009EDEC0 r4 = 00A24080 Function entered at [<0087890c>] from [<008a9c74>] Function entered at [<008a9c0c>] from [<0089ebf0>] r6 = 00992400 r5 = 0094CE60 r4 = 0094CE68 Function entered at [<0089ea54>] from [<008b781c>] r7 = 00000000 r6 = 00000000 r5 = 009EDEC0 r4 = 00000001 Function entered at [<008b7744>] from [<008a8fec>] r6 = 00992400 r5 = 00000004 r4 = 00000001 Function entered at [<008a8e94>] from [<008b58cc>] Function entered at [<008b5720>] from [<008b4258>] r6 = 00992400 r5 = 00000002 r4 = 009EDEC0 Function entered at [<008b4204>] from [<008a8fec>] r4 = 00000001 Function entered at [<008a8e94>] from [<008b413c>] Function entered at [<008b3f28>] from [<008b2c08>] r7 = 0093DED4 r6 = 009EDEC0 r5 = 0093DED4 r4 = 00A243A0 Function entered at [<008b29e0>] from [<008a8fec>] r6 = 00000000 r5 = 00000000 r4 = 00000001 Function entered at [<008a8e94>] from [<008b2768>] Function entered at [<008b2274>] from [<0089f54c>] r8 = 0098BF88 r7 = 00000001 r6 = 00000008 r5 = 00000000 r4 = 009EDEC0 Function entered at [<0089f2dc>] from [<0089f65c>] r6 = 009381AC r5 = 009381CC r4 = 0093DED4 Function entered at [<0089f5b4>] from [<0089f7dc>] Function entered at [<0089f744>] from [<0081e090>] Function entered at [<0081dfd8>] from [<0081e70c>] Function entered at [<0081e674>] from [<00810f28>] r7 = 00945730 r6 = 0081E674 r5 = 0097E000 r4 = 00000000 Code: ba000003 e93113f8 (e92013f8) e2522020 aafffffb Error (Oops_bfd_perror): /tmp/ksymoops.BYmaYB Invalid bfd target >>LR; 008727cc >>PC; 0090e5fc <===== Trace; 0090e3a0 Trace; 008727cc >>r8; 00956228 Trace; 00872684 Trace; 008820e0 Trace; 00882014 Trace; 00882004 Trace; 00881fc4 Trace; 008794f4 Trace; 00879424 Trace; 008793c0 Trace; 00878ebc Trace; 00878e04 Trace; 00878d60 Trace; 00878b60 Trace; 0087890c Trace; 008a9c74 <.gcc2_compiled.+68/100> Trace; 008a9c0c Trace; 0089ebf0 >>r5; 0094ce60 >>r4; 0094ce68 Trace; 0089ea54 Trace; 008b781c Trace; 008b7744 Trace; 008a8fec Trace; 008a8e94 Trace; 008b58cc Trace; 008b5720 Trace; 008b4258 Trace; 008b4204 Trace; 008a8fec Trace; 008a8e94 Trace; 008b413c <.gcc2_compiled.+214/2dc> Trace; 008b3f28 Trace; 008b2c08 >>r7; 0093ded4 >>r5; 0093ded4 Trace; 008b29e0 Trace; 008a8fec Trace; 008a8e94 Trace; 008b2768 Trace; 008b2274 Trace; 0089f54c Trace; 0089f2dc Trace; 0089f65c >>r6; 009381ac >>r5; 009381cc >>r4; 0093ded4 Trace; 0089f5b4 Trace; 0089f7dc Trace; 0089f744 Trace; 0081e090 <__do_softirq+b8/15c> Trace; 0081dfd8 <.gcc2_compiled.+0/0> Trace; 0081e70c Trace; 0081e674 Trace; 00810f28 >>r7; 00945730 <__machine_arch_type+0/4> >>r6; 0081e674 Kernel panic: Aiee, killing interrupt handler 1 error issued. 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