From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753416AbcERMmd (ORCPT ); Wed, 18 May 2016 08:42:33 -0400 Received: from mga01.intel.com ([192.55.52.88]:12823 "EHLO mga01.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751899AbcERMmb (ORCPT ); Wed, 18 May 2016 08:42:31 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.26,329,1459839600"; d="scan'208";a="957187692" From: "Coelho, Luciano" To: "reinoudkoornstra@gmail.com" CC: "linux-kernel@vger.kernel.org" , linuxwifi , "torvalds@linux-foundation.org" , "Berg, Johannes" , "akpm@linux-foundation.org" , "kvalo@codeaurora.org" , "egrumbach@gmail.com" , "netdev@vger.kernel.org" , "davem@davemloft.net" , "linux-wireless@vger.kernel.org" , "Grumbach, Emmanuel" Subject: Re: [GIT] Networking Thread-Topic: [GIT] Networking Thread-Index: AQHRsLaf8kQ/OuMXFEaLwxa9HQIEjZ++dGMAgAAYrgCAAAXdgA== Date: Wed, 18 May 2016 12:41:14 +0000 Message-ID: <1463575273.13625.23.camel@intel.com> References: <20160517.151113.367799295750703003.davem@davemloft.net> <1463568714.13625.18.camel@intel.com> In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.252.8.149] Content-Type: text/plain; charset="utf-8" Content-ID: <1057F08FDCCC964AB9E7419AD5307DF6@intel.com> MIME-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from base64 to 8bit by mail.home.local id u4ICgbxp027359 On Wed, 2016-05-18 at 06:20 -0600, Reinoud Koornstra wrote: > On Wed, May 18, 2016 at 4:51 AM, Coelho, Luciano > wrote: > > > > Hi Emmanuel, Linus, > > > > > > On Wed, 2016-05-18 at 06:37 +0300, Emmanuel Grumbach wrote: > > > > > > On Wed, May 18, 2016 at 4:00 AM, Linus Torvalds > > > wrote: > > > > > > > > > > > > On Tue, May 17, 2016 at 12:11 PM, David Miller > > > .net > > > > > > > > > > wrote: > > > > > > > > > > > > > > > Highlights: > > > > Lowlights: > > > > > > > >  1) the iwlwifi driver seems to be broken > > > > > > > > My laptop that uses the intel 7680 iwlwifi module no longer > > > > connects > > > > to the network. It fails with a "Microcode SW error detected." > > > > and > > > > spews out register state over and over again. > > > Can we have the register state and the ASSERT / NMI / whatever > > > that > > > goes along with it? > > > This clearly means that the firmware is crashing, but I don't > > > know > > > why, > > > I copied here the lines that I need from another bug with another > > > device with another firmware, > > > but the log that we will still explain what I need: > > I managed to reproduce this bug locally with Linus' master.  I'm > > investigating the cause and I'll let you how it goes. > I did run the latest git code as well 4.6+ > iwlwifi went pearshape in my case as well. > I just updated the microcode as well, it didn't matter. > 4.6-rc7 works fine and no errors are reported with iwlwifi. > > Here's output that might come in handy Thanks! That is helpful. Since you say that 4.6-rc7 works but 4.6 doesn't, the prime suspect is commit 5c08b0f5026f ("iwlwifi: mvm: don't override the rate with the AMSDU len"), which is the only iwlwifi patch between those two releases. Could you try to revert that and see if the error is gone? -- Cheers, Luca.