From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754072Ab0C0WAs (ORCPT ); Sat, 27 Mar 2010 18:00:48 -0400 Received: from [85.183.11.32] ([85.183.11.32]:48713 "EHLO Dublin.logfs.org" rhost-flags-FAIL-FAIL-OK-OK) by vger.kernel.org with ESMTP id S1754020Ab0C0WAq (ORCPT ); Sat, 27 Mar 2010 18:00:46 -0400 Date: Sat, 27 Mar 2010 23:00:39 +0100 From: =?utf-8?Q?J=F6rn?= Engel To: Robert Hancock Cc: David Miller , torvalds@linux-foundation.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, romieu@fr.zoreil.com Subject: Re: [Regression] r8169: enable 64-bit DMA by default for PCI Express devices (v2) Message-ID: <20100327220039.GA2083@Dublin.logfs.org> References: <20100315151041.GA15667@Dublin.logfs.org> <20100315.115748.13754030.davem@davemloft.net> <51f3faa71003151628g5edc4d7av8916ac76cb337bfe@mail.gmail.com> <20100316083501.GA3489@Dublin.logfs.org> <51f3faa71003161630g69160ea9tc1a2d448682632e5@mail.gmail.com> <51f3faa71003251756h17374375yd3a5d2acee2ffab9@mail.gmail.com> <20100326091234.GA11959@Dublin.logfs.org> <4BAD65A0.7090309@gmail.com> <20100327063838.GB11959@Dublin.logfs.org> <4BAE4464.9060909@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <4BAE4464.9060909@gmail.com> User-Agent: Mutt/1.5.18 (2008-05-17) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sat, 27 March 2010 11:46:12 -0600, Robert Hancock wrote: > > Hm, do you recall/have the details of what happened with the other card? It lost interrupts. I had a testcase that should have received three interrupts and only two were received by the driver. 100% reproducable. Card used MSI-Interrupts (no MSI-X) and worked reasonably well otherwise. But it is a prototype, so the card is just as likely to be the cause as the motherboard. > It's possible this is some general problem with that machine/motherboard > and not actually an issue with what the driver is doing. What kind of > board is that? Possible, yes. But I wouldn't know how to prove it. Asrock G31M-S with Intel E5200. J�rn