Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1161089AbWJDFvS (ORCPT ); Wed, 4 Oct 2006 01:51:18 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1161088AbWJDFvS (ORCPT ); Wed, 4 Oct 2006 01:51:18 -0400 Received: from fgwmail6.fujitsu.co.jp ([192.51.44.36]:673 "EHLO fgwmail6.fujitsu.co.jp") by vger.kernel.org with ESMTP id S1161087AbWJDFvR (ORCPT ); Wed, 4 Oct 2006 01:51:17 -0400 Message-ID: <45234ABF.5030107@jp.fujitsu.com> Date: Wed, 04 Oct 2006 14:46:39 +0900 From: Kenji Kaneshige User-Agent: Thunderbird 1.5.0.7 (Windows/20060909) MIME-Version: 1.0 To: Stephen Hemminger , Roland Dreier Cc: linux-kernel@vger.kernel.org, MUNEDA Takahiro , Satoru Takeuchi , Kristen Carlson Accardi , Greg Kroah-Hartman , Andrew Morton , ak@suse.de, davem@davemloft.net Subject: Re: The change "PCI: assign ioapic resource at hotplug" breaks my system References: <45225876.1080705@jp.fujitsu.com> <20061003110217.5ea3e152@dxpl.pdx.osdl.net> In-Reply-To: <20061003110217.5ea3e152@dxpl.pdx.osdl.net> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1993 Lines: 53 Stephen, Roland, Thank you very much for testing the patch. Thanks, Kenji Kaneshige Stephen Hemminger wrote: > On Tue, 03 Oct 2006 21:32:54 +0900 > Kenji Kaneshige wrote: > >> Roland Dreier wrote: >>> The change "PCI: assign ioapic resource at hotplug" (commit >>> 23186279658cea6d42a050400d3e79c56cb459b4 in Linus's tree) makes >>> networking stop working on my system (SuperMicro H8QC8 with four >>> dual-core Opteron 885 CPUs). In particular, the on-board NIC stops >>> working, probably because it gets assigned the wrong IRQ (225 in the >>> non-working case, 217 in the working case) >>> >>> With that patch applied, e1000 doesn't work. Reverting just that >>> patch (shown below) from Linus's latest tree fixes things for me. >>> >>> Please let me know what other debug information might be useful. >>> >> The cause of this problem might be an wrong assumption that the 'start' >> member of resource structure for ioapic device has non-zero value if the >> resources are assigned by firmware. The 'start' member of ioapic device >> seems not to be set even though the resources were actually assigned to >> ioapic devices by firmware. >> >> I made a patch to fix this problem against 2.6.18-git18. This patch >> checks command register instead of checking 'start' member to see if >> the ioapic is already enabled by firmware. Unfortunately, I don't have >> any system to reproduce this problem. Could you please try it and let >> me know whether the problem is fixed? If the patch below fixes the >> problem, I'll resend it with description and Signed-off-by. >> >> Thanks, >> Kenji Kaneshige >> > > This also fixes my problems with the built in tg3 on the dual CPU Opteron > IBM workstation. > > - 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/