From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261780AbVHAHW6 (ORCPT ); Mon, 1 Aug 2005 03:22:58 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262161AbVHAHW6 (ORCPT ); Mon, 1 Aug 2005 03:22:58 -0400 Received: from jurassic.park.msu.ru ([195.208.223.243]:15844 "EHLO jurassic.park.msu.ru") by vger.kernel.org with ESMTP id S261780AbVHAHW4 (ORCPT ); Mon, 1 Aug 2005 03:22:56 -0400 Date: Mon, 1 Aug 2005 11:22:45 +0400 From: Ivan Kokshaysky To: Andrew Morton Cc: Tero Roponen , jonsmirl@gmail.com, gregkh@suse.de, linux-kernel@vger.kernel.org, Mikael Pettersson Subject: Re: 2.6.14-rc4: dma_timer_expiry [was 2.6.13-rc2 hangs at boot] Message-ID: <20050801112245.B9460@jurassic.park.msu.ru> References: <9e47339105070618273dfb6ff8@mail.gmail.com> <20050728233408.550939d4.akpm@osdl.org> <20050729012452.16ee2a31.akpm@osdl.org> <20050729023921.0950968f.akpm@osdl.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5i In-Reply-To: <20050729023921.0950968f.akpm@osdl.org>; from akpm@osdl.org on Fri, Jul 29, 2005 at 02:39:21AM -0700 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Jul 29, 2005 at 02:39:21AM -0700, Andrew Morton wrote: > Tero Roponen wrote: > > My original report is here: http://lkml.org/lkml/2005/7/6/174 > > I see. Ivan, do we know what's going on here? Sort of. The 4K cardbus windows are working fine for non-x86 architectures where all IO resources are usually well known and added to the resource tree properly. However, on x86 there are sometimes "hidden" system IO port ranges that aren't reported by BIOS, so the large (4K) cardbus windows overlap these ranges. Actually I don't like reducing CARDBUS_IO_SIZE to 256 bytes, because we lose an ability to handle cards with built-in p2p bridges (which require 4K for IO), plus it won't fix Sony VAIO problem. Tero and Mikael, can you try this one-liner instead? Ivan. --- 2.6.13-rc4/include/asm-i386/pci.h Sun Jul 31 14:32:09 2005 +++ linux/include/asm-i386/pci.h Mon Aug 1 08:29:18 2005 @@ -18,7 +18,7 @@ extern unsigned int pcibios_assign_all_b #define pcibios_scan_all_fns(a, b) 0 extern unsigned long pci_mem_start; -#define PCIBIOS_MIN_IO 0x1000 +#define PCIBIOS_MIN_IO 0x2000 #define PCIBIOS_MIN_MEM (pci_mem_start) #define PCIBIOS_MIN_CARDBUS_IO 0x4000