From mboxrd@z Thu Jan 1 00:00:00 1970 Received: with ECARTIS (v1.0.0; list linux-mips); Wed, 29 Dec 2004 05:01:27 +0000 (GMT) Received: from dsl-KK-049.206.95.61.touchtelindia.net ([IPv6:::ffff:61.95.206.49]:33719 "EHLO trishul.procsys.com") by linux-mips.org with ESMTP id ; Wed, 29 Dec 2004 05:01:22 +0000 Received: from procsys.com ([192.168.1.128]) by trishul.procsys.com (8.12.10/8.12.10) with ESMTP id iBT4mvXb012270 for ; Wed, 29 Dec 2004 10:19:08 +0530 Message-ID: <41D23806.BC19A3C9@procsys.com> Date: Wed, 29 Dec 2004 10:22:22 +0530 From: priya X-Mailer: Mozilla 4.7 [en] (WinNT; I) X-Accept-Language: en MIME-Version: 1.0 To: "linux-mips@linux-mips.org" Subject: Problem when the CPU cache is turned on Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-ProcSys-Com-Anti-Virus-Mail-Filter-Virus-Found: no Return-Path: X-Envelope-To: <"|/home/ecartis/ecartis -s linux-mips"> (uid 0) X-Orcpt: rfc822;linux-mips@linux-mips.org Original-Recipient: rfc822;linux-mips@linux-mips.org X-archive-position: 6787 X-ecartis-version: Ecartis v1.0.0 Sender: linux-mips-bounce@linux-mips.org Errors-to: linux-mips-bounce@linux-mips.org X-original-sender: priya@procsys.com Precedence: bulk X-list: linux-mips Hi, Iam trying to bring up a custom board with RM5231A MIPS processor and IT8172 companion chip. Right now i have an issue related to running Linux 2.4.25 on MIPS with cache enabled. When i run the kernel with CPU Cache enabled, i get the following error messages. A. "Unhandled kernel unaligned access or invalid instruction in unaligned.c::emulate_load_store_insn, line 493:" B. "Reserved instruction in kernel code in traps.c::do_ri, line 663:" C. "Unable to handle kernel paging request at virtual address 00000000 These errors happen when i run fsck, vi or a simple du command. When i trun on the "Run uncached" option these errors disapper. I do not know where to start debugging. Can any one tell me what could be the problem when the cache is turned on. regards priya