From owner-freebsd-stable@FreeBSD.ORG Thu Jul 20 23:01:24 2006 Return-Path: X-Original-To: freebsd-stable@freebsd.org Delivered-To: freebsd-stable@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 851CC16A4DA for ; Thu, 20 Jul 2006 23:01:24 +0000 (UTC) (envelope-from sam@errno.com) Received: from ebb.errno.com (ebb.errno.com [69.12.149.25]) by mx1.FreeBSD.org (Postfix) with ESMTP id AE8B843D58 for ; Thu, 20 Jul 2006 23:01:22 +0000 (GMT) (envelope-from sam@errno.com) Received: from [10.0.0.248] (trouble.errno.com [10.0.0.248]) (authenticated bits=0) by ebb.errno.com (8.13.6/8.12.6) with ESMTP id k6KN1KAn053400 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Thu, 20 Jul 2006 16:01:22 -0700 (PDT) (envelope-from sam@errno.com) Message-ID: <44C00B40.2010901@errno.com> Date: Thu, 20 Jul 2006 16:01:20 -0700 From: Sam Leffler User-Agent: Thunderbird 1.5.0.2 (X11/20060508) MIME-Version: 1.0 To: freebsd-stable@freebsd.org References: <20060720224632.GB31459@osgiliath.brixandersen.dk> In-Reply-To: <20060720224632.GB31459@osgiliath.brixandersen.dk> X-Enigmail-Version: 0.94.0.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Subject: Re: "scan stuck" with if_iwi(4) X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 20 Jul 2006 23:01:24 -0000 Henrik Brix Andersen wrote: > Hi, > > I recently upgraded my IBM ThinkPad X31 from 6.1-RELEASE to 6.1-STABLE > after which the if_iwi(4) driver started dropping the connection at > regular intervals when connected to my hostapd-based AP using WPA2 PSK > CCMP. > > The dmesg output with debug.iwi=4 is listed below - it fails regularly > (every 3 mins or so) with the message "scan stuck" after which the > adapter is reinitialized and the connection lost for some seconds. > > The connection drop seems to be caused by the adapter suddently > entering the SCAN state. > > I have been unable to reproduce this problem with 6.1-RELEASE. You will not be able to reproduce the problem because the code in 6.1R ignored beacon misses (and a lot of other things). The stuck scan is not fatal; the driver just resets the card. It's caused by a firwmare problem that I never got around to dealing with ('cuz it wouldn't change the overall operation of the driver). The basic problem is your card is losing sync w/ the ap. I don't know what the local conditions are but I've seen this a lot w/ iwi; there's nothing we can do in the driver if you want to be able to roam. Sam > > $ uname -a > FreeBSD fangorn.brixandersen.dk 6.1-STABLE FreeBSD 6.1-STABLE #2: Tue Jul 18 11:16:02 CEST 2006 root@fangorn.brixandersen.dk:/usr/obj/usr/src/sys/GENERIC i386 > > > Jul 20 23:38:04 fangorn kernel: iwi0: mem 0xc0200000-0xc0200fff irq 11 at device 2.0 on pci2 > Jul 20 23:38:04 fangorn kernel: iwi0: Ethernet address: 00:0e:35:fd:81:94 > ... > Jul 21 00:19:26 fangorn kernel: Beacon miss: 7 >= 7 > Jul 21 00:20:24 fangorn kernel: Beacon miss: 7 >= 7 > Jul 21 00:20:24 fangorn kernel: iwi_newstate: RUN -> SCAN flags 0x11 > Jul 21 00:20:24 fangorn kernel: iwi0: link state changed to DOWN > Jul 21 00:20:24 fangorn kernel: iwi_newstate: INIT -> SCAN flags 0x11 > Jul 21 00:20:24 fangorn kernel: iwi_newstate: SCAN -> SCAN flags 0x13 > Jul 21 00:20:24 fangorn kernel: Start scanning > Jul 21 00:20:24 fangorn kernel: sending command idx=5 type=26 len=96 > Jul 21 00:20:24 fangorn kernel: Beacon miss: 8 >= 7 > Jul 21 00:20:24 fangorn kernel: Beacon miss: 9 >= 7 > Jul 21 00:20:30 fangorn kernel: iwi0: scan stuck > Jul 21 00:20:30 fangorn kernel: iwi_newstate: SCAN -> INIT flags 0x0 > Jul 21 00:20:31 fangorn kernel: Setting MAC address to 00:0e:35:fd:81:94 > Jul 21 00:20:31 fangorn kernel: sending command idx=0 type=11 len=6 > Jul 21 00:20:31 fangorn kernel: Configuring adapter > Jul 21 00:20:31 fangorn kernel: sending command idx=1 type=6 len=20 > Jul 21 00:20:31 fangorn kernel: Setting power mode to 0 > Jul 21 00:20:31 fangorn kernel: sending command idx=2 type=17 len=4 > Jul 21 00:20:31 fangorn kernel: Setting RTS threshold to 2346 > Jul 21 00:20:31 fangorn kernel: sending command idx=3 type=15 len=4 > Jul 21 00:20:31 fangorn kernel: Setting fragmentation threshold to 2346 > Jul 21 00:20:31 fangorn kernel: sending command idx=4 type=16 len=4 > Jul 21 00:20:31 fangorn kernel: Setting .11bg supported rates (12) > Jul 21 00:20:31 fangorn kernel: sending command idx=5 type=22 len=16 > Jul 21 00:20:31 fangorn kernel: Setting .11a supported rates (8) > Jul 21 00:20:31 fangorn kernel: sending command idx=6 type=22 len=16 > Jul 21 00:20:31 fangorn kernel: Setting initialization vector to 1069254139 > Jul 21 00:20:31 fangorn kernel: sending command idx=7 type=34 len=4 > Jul 21 00:20:31 fangorn kernel: Setting wep key index 0 len 0 > Jul 21 00:20:31 fangorn kernel: sending command idx=8 type=18 len=20 > Jul 21 00:20:31 fangorn kernel: Setting wep key index 1 len 0 > Jul 21 00:20:31 fangorn kernel: sending command idx=9 type=18 len=20 > Jul 21 00:20:31 fangorn kernel: Setting wep key index 2 len 0 > Jul 21 00:20:31 fangorn kernel: sending command idx=10 type=18 len=20 > Jul 21 00:20:31 fangorn kernel: Setting wep key index 3 len 0 > Jul 21 00:20:31 fangorn kernel: sending command idx=11 type=18 len=20 > Jul 21 00:20:31 fangorn kernel: Enabling adapter > Jul 21 00:20:31 fangorn kernel: sending command idx=12 type=2 len=0 > Jul 21 00:20:31 fangorn kernel: iwi_newstate: INIT -> SCAN flags 0x5 > Jul 21 00:20:31 fangorn kernel: iwi_newstate: SCAN -> SCAN flags 0x3 > Jul 21 00:20:31 fangorn kernel: Start scanning > Jul 21 00:20:31 fangorn kernel: sending command idx=13 type=26 len=96 > Jul 21 00:20:31 fangorn kernel: Scan of channel 5180 complete (36) > Jul 21 00:20:31 fangorn kernel: Scan of channel 5200 complete (40) > Jul 21 00:20:31 fangorn kernel: Scan of channel 5220 complete (44) > Jul 21 00:20:31 fangorn kernel: Scan of channel 5240 complete (48) > Jul 21 00:20:31 fangorn kernel: Scan of channel 5260 complete (52) > Jul 21 00:20:31 fangorn kernel: Scan of channel 5280 complete (56) > Jul 21 00:20:31 fangorn kernel: Scan of channel 5300 complete (60) > Jul 21 00:20:31 fangorn kernel: Scan of channel 5320 complete (64) > Jul 21 00:20:32 fangorn kernel: Scan of channel 5745 complete (149) > Jul 21 00:20:32 fangorn kernel: Scan of channel 5765 complete (153) > Jul 21 00:20:32 fangorn kernel: Scan of channel 5785 complete (157) > Jul 21 00:20:32 fangorn kernel: Scan of channel 5805 complete (161) > Jul 21 00:20:32 fangorn kernel: Scan of channel 5825 complete (165) > Jul 21 00:20:32 fangorn kernel: Scan of channel 2412 complete (1) > Jul 21 00:20:32 fangorn kernel: Scan of channel 2417 complete (2) > Jul 21 00:20:32 fangorn kernel: Scan of channel 2422 complete (3) > Jul 21 00:20:32 fangorn kernel: Scan of channel 2427 complete (4) > Jul 21 00:20:33 fangorn kernel: Scan of channel 2432 complete (5) > Jul 21 00:20:33 fangorn kernel: Scan of channel 2437 complete (6) > Jul 21 00:20:33 fangorn kernel: Scan of channel 2442 complete (7) > Jul 21 00:20:33 fangorn kernel: Scan of channel 2447 complete (8) > Jul 21 00:20:33 fangorn kernel: Scan of channel 2452 complete (9) > Jul 21 00:20:33 fangorn kernel: Scan of channel 2457 complete (10) > Jul 21 00:20:33 fangorn kernel: Scan of channel 2462 complete (11) > Jul 21 00:20:33 fangorn kernel: Scan of channel 2467 complete (12) > Jul 21 00:20:33 fangorn kernel: Scan of channel 2472 complete (13) > Jul 21 00:20:33 fangorn kernel: Scan of channel 2484 complete (14) > Jul 21 00:20:33 fangorn kernel: Scan completed (27, 1) > Jul 21 00:20:38 fangorn kernel: iwi_newstate: INIT -> SCAN flags 0x1 > Jul 21 00:20:38 fangorn kernel: iwi_newstate: SCAN -> SCAN flags 0x3 > Jul 21 00:20:38 fangorn kernel: Start scanning > Jul 21 00:20:38 fangorn kernel: sending command idx=14 type=26 len=96 > Jul 21 00:20:39 fangorn kernel: Scan of channel 5180 complete (36) > Jul 21 00:20:39 fangorn kernel: Scan of channel 5200 complete (40) > Jul 21 00:20:39 fangorn kernel: Scan of channel 5220 complete (44) > Jul 21 00:20:39 fangorn kernel: Scan of channel 5240 complete (48) > Jul 21 00:20:39 fangorn kernel: Scan of channel 5260 complete (52) > Jul 21 00:20:39 fangorn kernel: Scan of channel 5280 complete (56) > Jul 21 00:20:39 fangorn kernel: Scan of channel 5300 complete (60) > Jul 21 00:20:39 fangorn kernel: Scan of channel 5320 complete (64) > Jul 21 00:20:39 fangorn kernel: Scan of channel 5745 complete (149) > Jul 21 00:20:40 fangorn kernel: Scan of channel 5765 complete (153) > Jul 21 00:20:40 fangorn kernel: Scan of channel 5785 complete (157) > Jul 21 00:20:40 fangorn kernel: Scan of channel 5805 complete (161) > Jul 21 00:20:40 fangorn kernel: Scan of channel 5825 complete (165) > Jul 21 00:20:40 fangorn kernel: Scan of channel 2412 complete (1) > Jul 21 00:20:40 fangorn kernel: Scan of channel 2417 complete (2) > Jul 21 00:20:40 fangorn kernel: Scan of channel 2422 complete (3) > Jul 21 00:20:40 fangorn kernel: Scan of channel 2427 complete (4) > Jul 21 00:20:40 fangorn kernel: Scan of channel 2432 complete (5) > Jul 21 00:20:40 fangorn kernel: Scan of channel 2437 complete (6) > Jul 21 00:20:41 fangorn kernel: Scan of channel 2442 complete (7) > Jul 21 00:20:41 fangorn kernel: Scan of channel 2447 complete (8) > Jul 21 00:20:41 fangorn kernel: Scan of channel 2452 complete (9) > Jul 21 00:20:41 fangorn kernel: Scan of channel 2457 complete (10) > Jul 21 00:20:41 fangorn kernel: Scan of channel 2462 complete (11) > Jul 21 00:20:41 fangorn kernel: Scan of channel 2467 complete (12) > Jul 21 00:20:41 fangorn kernel: Scan of channel 2472 complete (13) > Jul 21 00:20:41 fangorn kernel: Scan of channel 2484 complete (14) > Jul 21 00:20:41 fangorn kernel: Scan completed (27, 1) > Jul 21 00:20:41 fangorn kernel: iwi_newstate: SCAN -> AUTH flags 0x1 > Jul 21 00:20:41 fangorn kernel: Configuring adapter > Jul 21 00:20:41 fangorn kernel: sending command idx=15 type=6 len=20 > Jul 21 00:20:41 fangorn kernel: Setting ESSID to "brix" > Jul 21 00:20:41 fangorn kernel: sending command idx=0 type=8 len=4 > Jul 21 00:20:41 fangorn kernel: Setting negotiated rates (4) > Jul 21 00:20:41 fangorn kernel: sending command idx=1 type=22 len=16 > Jul 21 00:20:41 fangorn kernel: Setting optional IE (len=24) > Jul 21 00:20:41 fangorn kernel: sending command idx=2 type=31 len=24 > Jul 21 00:20:41 fangorn kernel: Setting sensitivity to 39 > Jul 21 00:20:41 fangorn kernel: sending command idx=3 type=42 len=4 > Jul 21 00:20:41 fangorn kernel: Join bssid 00:02:6f:37:fc:68 dst 00:02:6f:37:fc:68 channel 1 policy 0x2 auth 0 capinfo 0x31 li > ntval 100 bintval 100 > Jul 21 00:20:41 fangorn kernel: sending command idx=4 type=21 len=40 > Jul 21 00:20:41 fangorn kernel: Authentication succeeeded > Jul 21 00:20:41 fangorn kernel: iwi_newstate: AUTH -> ASSOC flags 0x1 > Jul 21 00:20:41 fangorn kernel: Association succeeded > Jul 21 00:20:41 fangorn kernel: iwi_newstate: ASSOC -> RUN flags 0x11 > Jul 21 00:20:41 fangorn kernel: iwi0: link state changed to UP > Jul 21 00:20:49 fangorn dhclient: New IP Address (iwi0): 10.0.0.56 > Jul 21 00:20:49 fangorn dhclient: New Subnet Mask (iwi0): 255.255.255.0 > Jul 21 00:20:49 fangorn dhclient: New Broadcast Address (iwi0): 10.0.0.255 > Jul 21 00:20:49 fangorn dhclient: New Routers (iwi0): 10.0.0.1 > > Regards, > Brix