From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from youngberry.canonical.com ([91.189.89.112]:51574 "EHLO youngberry.canonical.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751461Ab3LKTTj (ORCPT ); Wed, 11 Dec 2013 14:19:39 -0500 Message-ID: <52A8BAC5.70006@canonical.com> Date: Wed, 11 Dec 2013 14:19:33 -0500 From: Joseph Salisbury MIME-Version: 1.0 To: Yinghai Lu , Bjorn Helgaas CC: "linux-pci@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "stable@vger.kernel.org" Subject: Re: [PATCH 2/2] PCI: Only enable realloc auto when root bus has 64bit mmio References: <1386546869-31900-1-git-send-email-yinghai@kernel.org> <1386546869-31900-3-git-send-email-yinghai@kernel.org> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-pci-owner@vger.kernel.org List-ID: On 12/09/2013 03:10 PM, Yinghai Lu wrote: > On Mon, Dec 9, 2013 at 11:42 AM, Bjorn Helgaas wrote: >> That doesn't answer my question at all. >> >> I understand that this change makes it so Joseph doesn't have to use >> "pci=realloc=off". But why should auto-reallocation be limited to >> buses that have resources above 4GB? That doesn't make any sense. >> >> We should fix the reallocation code so it can deal with this case. If >> there's not enough space for everything, obviously we have to leave >> something unassigned. A ROM BAR is a good candidate for leaving >> unassigned, because most of the time we can get along without it. > Yes, that is ideal and not that simple. > but that would be hard to backport to old kernels. > > BTW, Joseph, can you try > git://git.kernel.org/pub/scm/linux/kernel/git/yinghai/linux-yinghai.git > for-pci-3.14 > with pci=realloc=on > > on that system? > > Thanks > > Yinghai I noticed there was some back and forth on this thread. Do you still want me to test this version, Yinghai?