Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933568Ab2ERAEK (ORCPT ); Thu, 17 May 2012 20:04:10 -0400 Received: from mga03.intel.com ([143.182.124.21]:17171 "EHLO mga03.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932585Ab2ERAEI (ORCPT ); Thu, 17 May 2012 20:04:08 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.71,315,1320652800"; d="scan'208";a="101419389" Date: Thu, 17 May 2012 17:04:04 -0700 (Pacific Daylight Time) From: "Brandeburg, Jesse" To: Samuel Thibault cc: "Dave, Tushar N" , "Kirsher, Jeffrey T" , "Allan, Bruce W" , "Wyborny, Carolyn" , "Skidmore, Donald C" , "Rose, Gregory V" , "Waskiewicz Jr, Peter P" , "Duyck, Alexander H" , "Ronciak, John" , "David S. Miller" , Jiri Pirko , Dean Nelson , "e1000-devel@lists.sourceforge.net" , "netdev@vger.kernel.org" , "linux-kernel@vger.kernel.org" Subject: Re: [PATCH] e1000: Reset rx ring index on receive overrun In-Reply-To: <20120517233124.GK683@type.famille.thibault.fr> Message-ID: References: <20120517230140.GZ683@type.famille.thibault.fr> <061C8A8601E8EE4CA8D8FD6990CEA891188439E0@ORSMSX102.amr.corp.intel.com> <20120517232821.GJ683@type.famille.thibault.fr> <20120517233124.GK683@type.famille.thibault.fr> User-Agent: Alpine 2.00 (WNT 1167 2008-08-23) ReplyTo: "Brandeburg, Jesse" X-X-Sender: amrjbrandeb@imapmail.glb.intel.com MIME-Version: 1.0 Content-Type: MULTIPART/MIXED; BOUNDARY="98638-26239-1337299446=:7900" Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1276 Lines: 32 This message is in MIME format. The first part should be readable text, while the remaining parts are likely unreadable without MIME-aware tools. --98638-26239-1337299446=:7900 Content-Type: TEXT/PLAIN; charset=iso-8859-1 Content-Transfer-Encoding: 8BIT On Thu, 17 May 2012, Samuel Thibault wrote: > Samuel Thibault, le Fri 18 May 2012 01:28:21 +0200, a ?crit : > > Dave, Tushar N, le Thu 17 May 2012 23:22:31 +0000, a ?crit : > > > I am interested in to see if you have actual test case and more > > > importantly test data that shows that kernel and device indexes are > > > not synchronized any more. > > > > Well, it's not with an actual physical device, but with the kvm > > emulation. > > BTW, it also happens easily when request_irq takes some time to > complete: since we enable E1000_TCTL_EN before that, the card can have > time to fill the ring before irqs are processed. I think there may well be a bug in the implementation in kvm. The hardware doesn't have this bug. --98638-26239-1337299446=:7900-- -- 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/