Return-path: Received: from mga03.intel.com ([143.182.124.21]:5393 "EHLO mga03.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755688Ab1KWDwI (ORCPT ); Tue, 22 Nov 2011 22:52:08 -0500 Subject: Re: 3.1+ iwlwifi lockup From: "Guy, Wey-Yi" To: Dave Jones Cc: Linux Kernel , "ilw@linux.intel.com" , "linux-wireless@vger.kernel.org" In-Reply-To: <20111123033446.GB9703@redhat.com> References: <20111031143408.GA17152@redhat.com> <1321992902.8072.7.camel@wwguy-ubuntu> <20111123024545.GA9703@redhat.com> <1322015380.11647.82.camel@wwguy-huron> <20111123033446.GB9703@redhat.com> Content-Type: text/plain; charset="UTF-8" Date: Tue, 22 Nov 2011 18:56:05 -0800 Message-ID: <1322016965.11647.95.camel@wwguy-huron> (sfid-20111123_045236_867828_598B29DE) Mime-Version: 1.0 Sender: linux-wireless-owner@vger.kernel.org List-ID: On Tue, 2011-11-22 at 19:34 -0800, Dave Jones wrote: > On Tue, Nov 22, 2011 at 06:29:40PM -0800, Guy, Wey-Yi wrote: > > > On Tue, 2011-11-22 at 18:45 -0800, Dave Jones wrote: > > > On Tue, Nov 22, 2011 at 12:15:02PM -0800, wwguy wrote: > > > > Hi Dave, > > > > > > > > Sorry for taking so long. > > > > it is a bogus command from the firmware which driver try to process it > > > > and cause problem. I am not sure how it happen. But could you please try > > > > the patch I attach here. > > > > > > > > For now I am just ignore the command, but not sure it is good enough, > > > > might has to reload the firmware, but not sure. > > > > > > With Linus' current tree and this patch, I got a panic pretty quickly, > > > but with a different trace. > > > > > Are you seeing the problem without this patch? I guess the patch I done > > here is not the right thing to do and I try to address the problem too > > aggressively > > I've been running Linus' current tree for the whole time and haven't seen > any iwlwifi traces since my initial report on the 11th. > > I can't reproduce the bug, even by doing the same operation > (an scp of a dozen photographs). > > It seems to happen almost at random, as if it's somehow timing related. > I'm running the patched kernel again now, and it's been fine for the last hour. > Agree, that is why I could not re-produce here after many try. Could you share your configuration, such as band/channel, 32/64 bit system, 20/40 MHz, traffic type, open/security, power management, ..., Thanks Wey >