From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261798AbVGRQKp (ORCPT ); Mon, 18 Jul 2005 12:10:45 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261823AbVGRQKp (ORCPT ); Mon, 18 Jul 2005 12:10:45 -0400 Received: from clock-tower.bc.nu ([81.2.110.250]:31464 "EHLO localhost.localdomain") by vger.kernel.org with ESMTP id S261798AbVGRQKn (ORCPT ); Mon, 18 Jul 2005 12:10:43 -0400 Subject: Re: ANNOUNCE: Driver for Rocky 4782E WDT and pls help From: Alan Cox To: Gyorgy Horvath Cc: linux-kernel@vger.kernel.org In-Reply-To: <42DC2871.1030103@alpha.tmit.bme.hu> References: <42DC2871.1030103@alpha.tmit.bme.hu> Content-Type: text/plain Content-Transfer-Encoding: 7bit Date: Mon, 18 Jul 2005 17:34:26 +0100 Message-Id: <1121704467.12438.71.camel@localhost.localdomain> Mime-Version: 1.0 X-Mailer: Evolution 2.2.2 (2.2.2-5) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Llu, 2005-07-18 at 15:08 -0700, Gyorgy Horvath wrote: > - Half of the RAM were stolen from Linux. > (mem=xxxx kernel parameter) > This range was requeset_mem_region-ed, then > ioremap-ped for bus mastering DMA transfer. > Actually 30 M is used. Did you make sure none of that is ACPI owned in the E820 map and that if you set any cache properties they match and are consistent with any Linux pagetable uses ? > - Issuing a simple ls -la / surelly causes instant death. Is this also true with ide=nodma ? > hardware bug. None. I feel it. Although I noticed that > someone (not me) takes control of the PC - time to time - > for cca. 400..500 usec so that no DMA can occur. Probably SMM firmware. Make sure you have USB driver loaded. Consider turning ACPI and APM off > Moreover, I have applied a breakpoint to sscanf in the > shared.o. Disassembling the the code causes sudden death > at a given point. The code portions were not executed, just > disassembled. What the hell is that? Smells like broken hardware.