Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760879AbXKBWc3 (ORCPT ); Fri, 2 Nov 2007 18:32:29 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752508AbXKBWcU (ORCPT ); Fri, 2 Nov 2007 18:32:20 -0400 Received: from einhorn.in-berlin.de ([192.109.42.8]:51447 "EHLO einhorn.in-berlin.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752687AbXKBWcU (ORCPT ); Fri, 2 Nov 2007 18:32:20 -0400 X-Envelope-From: stefanr@s5r6.in-berlin.de Message-ID: <472BA567.8040301@s5r6.in-berlin.de> Date: Fri, 02 Nov 2007 23:32:07 +0100 From: Stefan Richter User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8.1.6) Gecko/20070807 SeaMonkey/1.1.4 MIME-Version: 1.0 To: Torsten Kaiser CC: linux-kernel@vger.kernel.org, linux1394-devel@lists.sourceforge.net Subject: Re: 2.6.24-rc1-54866f032307063776b4eff7eadb131d47f9f9b4 fails to boot: kernel BUG at include/linux/scatterlist.h:49! References: <64bb37e0711021503x4844b905yba1e9a681c4e788a@mail.gmail.com> In-Reply-To: <64bb37e0711021503x4844b905yba1e9a681c4e788a@mail.gmail.com> X-Enigmail-Version: 0.95.2 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1554 Lines: 42 Torsten Kaiser wrote: > Both 2.6.24-rc1 and the current git version fail to boot for me: > > [ 57.182205] ohci1394: fw-host0: OHCI-1394 1.1 (PCI): IRQ=[16] > MMIO=[effff800-efffffff] Max Packet= > [2048] IR/IT contexts=[4/8] > [ 57.194032] eth1394: eth2: IPv4 over IEEE 1394 (fw-host0) > [ 57.199527] ------------[ cut here ]------------ > [ 57.204154] kernel BUG at include/linux/scatterlist.h:49! To which extent do you need IEEE 1394 drivers? [...] > from gdb: > 0xffffffff80463512 is in dma_region_alloc (include/linux/scatterlist.h:49). > 44 * In order for the low bit stealing approach to work, pages > 45 * must be aligned at a 32-bit boundary as a minimum. > 46 */ > 47 BUG_ON((unsigned long) page & 0x03); > 48 #ifdef CONFIG_DEBUG_SG > 49 BUG_ON(sg->sg_magic != SG_MAGIC); > 50 #endif > 51 sg->page_link = page_link | (unsigned long) page; > 52 } > 53 Uh oh... I'm afraid the ieee1394 core's own scatter-gather list managing code didn't survive the changes in the kernel's s/g list implementation. Alas I will be quite busy with non-Linux related stuff during at least the next two weeks and can't fix this myself for now. -- Stefan Richter -=====-=-=== =-== ---=- http://arcgraph.de/sr/ - 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/