From mboxrd@z Thu Jan 1 00:00:00 1970 From: linas@austin.ibm.com Date: Mon, 19 May 2003 11:07:46 -0500 To: guo_zhenglin Cc: linuxppc-embedded Subject: Re: help: why show "Oops: kernel access of bad area, sig: 11" Message-ID: <20030519110746.B33270@forte.austin.ibm.com> References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii In-Reply-To: ; from guo_zl9@hotmail.com on Mon, May 19, 2003 at 04:33:49PM +0800 Sender: owner-linuxppc-dev@lists.linuxppc.org List-Id: Hi, On Mon, May 19, 2003 at 04:33:49PM +0800, guo_zhenglin wrote: > Serial driver version 5.05c (2001-07-08) with no serial options > enabled > Oops: kernel access of bad area, sig: 11 > NIP: C0076F0C XER: 80009E6C LR: C007B620 SP: C017DE80 REGS: c017ddd0 > TRAP: 0300d > MSR: 00001032 EE: 0 PR: 0 FP: 0 ME: 1 IR/DR: 11 > DAR: 000003F9, DSISR: 00018469 > TASK = c017c000[1] 'swapper' Last syscall: 120 > last math 00000000 last altivec 00000000 > GPR00: 00000000 C017DE80 C017C000 C017DE88 00000001 00000000 C0D203B8 > 000003F8 > GPR08: 00000000 000003F8 00000000 00000000 0000000D FFFFFFFF C007AC70 > C007A4C4 > GPR16: C0079010 C0079CDC C007A5E0 C00770A8 C007701C C007A154 C00790E0 > C0079058 > GPR24: C0079D64 C0078F90 C0078F78 C00F28F8 C00F28F8 C011A76C C011A830 > C017DE88 > Call backtrace: > C0011AE4 C0101028 C00FA5FC C00FA644 C00022CC C0006BE4 > Kernel panic: Attempted to kill init! > <0>Rebooting in 180 seconds.. You need to use System.map to figure out what routine this crashed in. You need a backtrace/stack dump Then you need to create assembly for the file in question: gcc -Wa,ah, -Wa,al and figure out what the assembly was doing when it crashed. And then read the source code to see why. KDB makes this a *lot* easier. --linas ** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/