From mboxrd@z Thu Jan 1 00:00:00 1970 From: Thomas Jarosch Subject: Re: [bisected regression] e1000e: "Detected Hardware Unit Hang" Date: Fri, 13 Feb 2015 17:14:55 +0100 Message-ID: <2370189.uakqRR7OLn@storm> References: <1719052.SGOfRAJhfQ@storm> <1423654440.27854.83.camel@jtkirshe-mobl> <309B89C4C689E141A5FF6A0C5FB2118B783AC840@ORSMSX101.amr.corp.intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7Bit Cc: "Kirsher, Jeffrey T" , 'Linux Netdev List' , Eric Dumazet , e1000-devel To: "Brown, Aaron F" Return-path: Received: from rs04.intra2net.com ([85.214.66.2]:46465 "EHLO rs04.intra2net.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753113AbbBMQO7 (ORCPT ); Fri, 13 Feb 2015 11:14:59 -0500 In-Reply-To: <309B89C4C689E141A5FF6A0C5FB2118B783AC840@ORSMSX101.amr.corp.intel.com> Sender: netdev-owner@vger.kernel.org List-ID: Hi Aaron, On Thursday, 12. February 2015 23:28:27 Brown, Aaron F wrote: > I do not have any real info. I had been asked to try and reproduce some > unit hangs (maybe for this) recently and did not succeed in producing > them on the parts I have. Reading through the thread I see this is > showing up in a NAT environment. The port that is getting the unit hang > in the NAT system? yes, the e1000e NIC is serving the NATed Windows client. The setup was outlined here: http://marc.info/?l=linux-netdev&m=142133691713824&w=2 > I will make some attempts at replicating this with the port in a NAT and > or forwarding role. Has a bug been opened for this? Or has information > for this specific unit hang been entered into one of the other unit hang > bugs opened against e1000e? I didn't do anything(tm). This report sounds like the same issue: http://ehc.ac/p/e1000/bugs/378/ Oliver Wagner wrote the problem started to appear after updating from kernel 3.5 to 3.8.0.35 (new frag size code). I just noticed now he wrote he has two identical boxes: --------------------------------------------------- - Box with symptoms: Router/Firewall, packet forwarding between different VLANs on eth0 and eth1 - Box without symptoms: Fileserver, eth0/eth1 bonded (VLANs used, but no forwarding) --------------------------------------------------- So it looks like it's related to forwarding somehow, I've made the same experience IIRC. Cheers, Thomas