Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Fri, 10 Jan 2003 11:56:01 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Fri, 10 Jan 2003 11:56:01 -0500 Received: from 216-239-45-4.google.com ([216.239.45.4]:35140 "EHLO 216-239-45-4.google.com") by vger.kernel.org with ESMTP id ; Fri, 10 Jan 2003 11:55:59 -0500 Message-ID: <3E1EFD27.5010008@google.com> Date: Fri, 10 Jan 2003 09:04:39 -0800 From: Ross Biro User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.0.1) Gecko/20020826 X-Accept-Language: en-us, en MIME-Version: 1.0 To: linux-kernel@vger.kernel.org Subject: [2.4.21-pre3] BUG: IDE DMA doesn't work w/ x86 HighMem Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 602 Lines: 18 Configure the 2.4.21-pre3 kernel with IDE and Highmem and when DMA is attempted you get a BUG from asm-i386/pci.h line 155 called from drives/ide/ide-dma.c line 282. From the looks of it, the IDE driver has not been highmem enabled, but does get a high-mem device queue. This is easily reproduced on a dual proc P3 with 2 Gigs of ram. Ross - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/