Return-path: Received: from senator.holtmann.net ([87.106.208.187]:45564 "EHLO mail.holtmann.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754567Ab0GSX3i (ORCPT ); Mon, 19 Jul 2010 19:29:38 -0400 Subject: Re: iwlagn and many firmware restarts with Fedora kernel From: Marcel Holtmann To: drago01 Cc: linux-wireless@vger.kernel.org In-Reply-To: References: <1279565034.4572.36.camel@localhost.localdomain> Content-Type: text/plain; charset="UTF-8" Date: Mon, 19 Jul 2010 16:29:34 -0700 Message-ID: <1279582174.4572.43.camel@localhost.localdomain> Mime-Version: 1.0 Sender: linux-wireless-owner@vger.kernel.org List-ID: Hi, > > so during the last few weeks, I have seen a huge amount of firmware > > restarts with my Intel 5350 card and Fedora 13 kernel (2.6.33.6-147). > > > > iwlagn 0000:03:00.0: low ack count detected, restart firmware > > iwlagn 0000:03:00.0: On demand firmware reload > > iwlagn 0000:03:00.0: Stopping AGG while state not ON or starting > > iwlagn 0000:03:00.0: queue number out of range: 0, must be 10 to 19 > > > > If this happens then I don't see it once, I normally see this 10-20 > > times and the connectivity is stalled until the cards comes back to > > life. I have seen patches that should have fixed this symptom, but they > > might be also send to -stable since this is a major hassle. > > > > The time without connectivity is something around 4-5 minutes or longer > > when this happens. Not really funny. > > This happens here too even with the 2.6.34.1-9.fc13.x86_64 kernel; > when this happens reloading the iwlagn module seems to be the only > (quick) way to get it back to life. the quick way is re-loading the module, that is true. Otherwise you have to sit it out. It always comes back nicely and starts working again. Regards Marcel