From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from blaine.gmane.org ([80.91.229.8]:43188 "EHLO hugh.gmane.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758241AbYLLNEf (ORCPT ); Fri, 12 Dec 2008 08:04:35 -0500 Received: from public by hugh.gmane.org with local (Exim 4.63) (envelope-from ) id 1LB7h2-000120-7e for linux-wireless@vger.kernel.org; Fri, 12 Dec 2008 14:04:32 +0100 Subject: Re: iwlagn interrupt problem From: Dan Williams To: Zdenek Kabelac Cc: "Alexander E. Patrakov" , reinette chatre , "linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" , "linux-wireless-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" In-Reply-To: <49424B7A.9060700@redhat.com> References: <1228929548.18730.21.camel@rc-desk> <49424419.1090103@redhat.com> <49424B7A.9060700@redhat.com> Content-Type: text/plain Date: Fri, 12 Dec 2008 08:03:19 -0500 Message-Id: <1229086999.32038.6.camel@localhost.localdomain> (sfid-20081212_140439_990747_6B70B590) Mime-Version: 1.0 Sender: linux-wireless-owner@vger.kernel.org List-ID: On Fri, 2008-12-12 at 12:31 +0100, Zdenek Kabelac wrote: > > Alexander E. Patrakov napsal(a): > > 2008/12/12 Zdenek Kabelac : > >> I assume that this backtrace I've got with 2.6.28-rc7 is the same issue ? > > > > No, this is different. My issue is with unacceptable latency when > > bringing the interface down. In your dmesg, the interface was never > > brought up or down. > > > > Hmm - it was something like an hour after resume when the problem started, > > Here is timed part of the same backtrace: > > [65627.782972] wlan0: associate with AP 00:11:d8:da:65:40 > [65627.785569] wlan0: RX ReassocResp from 00:11:d8:da:65:40 (capab=0x401 > status=0 aid=8) > [65627.785576] wlan0: associated > [69541.209873] wlan0: No ProbeResp from current AP 00:11:d8:da:65:40 - assume > out of range > [69541.810104] iwl3945: Error sending REPLY_SCAN_CMD: time out after 500ms. > [69542.309861] iwl3945: Error sending REPLY_RXON_ASSOC: time out after 500ms. > > > The begging of my trace looked similar. > > Should I open new bugzilla separately ? If you can reproduce this, it sounds more like a firmware problem, so Reinette is probably going to want you to enable firmware debugging in the driver. Try removing the iwl3945 module with rmmod, then "modprobe iwl3945 debug=0x43fff", reproduce this command timeout, and attach the logs to whatever bug report you file. Dan From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758605AbYLLNEl (ORCPT ); Fri, 12 Dec 2008 08:04:41 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1758104AbYLLNEc (ORCPT ); Fri, 12 Dec 2008 08:04:32 -0500 Received: from blaine.gmane.org ([80.91.229.8]:43157 "EHLO hugh.gmane.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758048AbYLLNEb (ORCPT ); Fri, 12 Dec 2008 08:04:31 -0500 Subject: Re: iwlagn interrupt problem From: Dan Williams To: Zdenek Kabelac Cc: "Alexander E. Patrakov" , reinette chatre , "linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" , "linux-wireless-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" In-Reply-To: <49424B7A.9060700@redhat.com> References: <1228929548.18730.21.camel@rc-desk> <49424419.1090103@redhat.com> <49424B7A.9060700@redhat.com> Content-Type: text/plain Date: Fri, 12 Dec 2008 08:03:19 -0500 Message-Id: <1229086999.32038.6.camel@localhost.localdomain> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, 2008-12-12 at 12:31 +0100, Zdenek Kabelac wrote: > > Alexander E. Patrakov napsal(a): > > 2008/12/12 Zdenek Kabelac : > >> I assume that this backtrace I've got with 2.6.28-rc7 is the same issue ? > > > > No, this is different. My issue is with unacceptable latency when > > bringing the interface down. In your dmesg, the interface was never > > brought up or down. > > > > Hmm - it was something like an hour after resume when the problem started, > > Here is timed part of the same backtrace: > > [65627.782972] wlan0: associate with AP 00:11:d8:da:65:40 > [65627.785569] wlan0: RX ReassocResp from 00:11:d8:da:65:40 (capab=0x401 > status=0 aid=8) > [65627.785576] wlan0: associated > [69541.209873] wlan0: No ProbeResp from current AP 00:11:d8:da:65:40 - assume > out of range > [69541.810104] iwl3945: Error sending REPLY_SCAN_CMD: time out after 500ms. > [69542.309861] iwl3945: Error sending REPLY_RXON_ASSOC: time out after 500ms. > > > The begging of my trace looked similar. > > Should I open new bugzilla separately ? If you can reproduce this, it sounds more like a firmware problem, so Reinette is probably going to want you to enable firmware debugging in the driver. Try removing the iwl3945 module with rmmod, then "modprobe iwl3945 debug=0x43fff", reproduce this command timeout, and attach the logs to whatever bug report you file. Dan