Return-path: Received: from mail-ww0-f44.google.com ([74.125.82.44]:35007 "EHLO mail-ww0-f44.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753627Ab1KWOpz (ORCPT ); Wed, 23 Nov 2011 09:45:55 -0500 Received: by wwe5 with SMTP id 5so2380731wwe.1 for ; Wed, 23 Nov 2011 06:45:54 -0800 (PST) MIME-Version: 1.0 In-Reply-To: <20111123144041.GB13460@redhat.com> References: <20111116100915.GA2191@redhat.com> <20111122214940.GH8452@tuxdriver.com> <20111123080506.GB9833@redhat.com> <20111123105106.GA7943@redhat.com> <20111123144041.GB13460@redhat.com> From: Luis Correia Date: Wed, 23 Nov 2011 14:45:13 +0000 Message-ID: (sfid-20111123_154558_543537_17739A21) Subject: Re: [PATCH] rt2800pci: handle spurious interrupts To: Stanislaw Gruszka Cc: Helmut Schaa , "John W. Linville" , linux-wireless@vger.kernel.org, Ivo van Doorn , Amir Hedayaty Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-wireless-owner@vger.kernel.org List-ID: Hi Stanislaw, On Wed, Nov 23, 2011 at 14:40, Stanislaw Gruszka wrote: > Hi Luis, > > (adding CCes again, please keep them next time :-) Sorry about the mess, I was in a hurry to leave and really wanted to provide feedback. > > On Wed, Nov 23, 2011 at 10:54:03AM +0000, Luis Correia wrote: >> this suggestion won't really help much, but you could try also booting >> with the 'irqpoll' option. >> >> This slows down a bit all interrupt processing but can help to >> investigate situations in where the IRQ lines are really shared. > > Thanks, this is a good hint. I think irqpoll option can be used > as workaround for the bug. > > Stanislaw > The last time I used it, it really did avoid kernel panic because the two drivers that were sharing the same IRQ line were misbehaving. Luis Correia