Return-path: Received: from he.sipsolutions.net ([78.46.109.217]:52221 "EHLO sipsolutions.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S934793Ab3BTU1n (ORCPT ); Wed, 20 Feb 2013 15:27:43 -0500 Message-ID: <1361392043.8579.14.camel@jlt4.sipsolutions.net> (sfid-20130220_212752_588524_802F9D29) Subject: Re: 3.7.8/amd64 full interrupt hangs due to iwlwifi under big nfs copies out From: Johannes Berg To: Eric Dumazet Cc: Marc MERLIN , David Miller , Larry.Finger@lwfinger.net, bhutchings@solarflare.com, linux-wireless@vger.kernel.org, netdev@vger.kernel.org Date: Wed, 20 Feb 2013 21:27:23 +0100 In-Reply-To: <1361391262.19353.223.camel@edumazet-glaptop> (sfid-20130220_211427_725228_379FD1B7) References: <1333998672.3007.245.camel@edumazet-glaptop> <20120409.153452.1284163346306246866.davem@davemloft.net> <1334030180.13293.98.camel@edumazet-glaptop> <20120410051127.GA32048@merlins.org> <1334038263.2907.1.camel@edumazet-glaptop> <20120411052733.GA17352@merlins.org> <20120715215935.GF24420@merlins.org> <1342419529.3265.12217.camel@edumazet-glaptop> <20120716151826.GA10586@merlins.org> <1342455717.2830.14.camel@edumazet-glaptop> <20130219040557.GB4778@merlins.org> <1361251033.19353.120.camel@edumazet-glaptop> (sfid-20130219_061917_530878_1ED7A14C) <1361268221.8553.1.camel@jlt4.sipsolutions.net> <1361290909.19353.140.camel@edumazet-glaptop> (sfid-20130219_172155_748777_C3ED0F5E) <1361351538.8629.3.camel@jlt4.sipsolutions.net> (sfid-20130220_101252_930264_DBD3955C) <1361351703.8629.5.camel@jlt4.sipsolutions.net> <1361373064.19353.180.camel@edumazet-glaptop> (sfid-20130220_161110_395796_DBAC0744) <1361377243.8629.34.camel@jlt4.sipsolutions.net> <1361379331.19353.189.camel@edumazet-glaptop> (sfid-20130220_175537_373410_F2F98F44) <1361379686.8629.41.camel@jlt4.sipsolutions.net> <1361381096.19353.195.camel@edumazet-glaptop> (sfid-20130220_182502_483935_369E6954) <1361384183.8579.1.camel@jlt4.sipsolutions.net> <1361387854.19353.214.camel@edumazet-glaptop> (sfid-20130220_201740_409859_E87FECD4) <1361390290.8579.4.camel@jlt4.sipsolutions.net> <1361391262.19353.223.camel@edumazet-glaptop> (sfid-20130220_211427_725228_379FD1B7) Content-Type: text/plain; charset="UTF-8" Mime-Version: 1.0 Sender: linux-wireless-owner@vger.kernel.org List-ID: On Wed, 2013-02-20 at 12:14 -0800, Eric Dumazet wrote: > On Wed, 2013-02-20 at 20:58 +0100, Johannes Berg wrote: > > > Sure: net/mac80211/rx.c ~line 1900, look for #ifndef > > CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS. > > > > > On x86 we should not doing anything. > > > > We don't do anything if CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS is > > defined. > > Thanks ! :-) Hey, I introduced that config symbol back then for precisely this reason ;-) > BTW, comment is outdated, as it mentions __skb_push(), while > its not used. Oops, good point, now I wonder what it did actually refer to. Time to dig in git history, I'll fix it. johannes