Re: [ath5k-devel] iwlist scan shows same ap twice
On Wed, 18 Nov 2009 12:01:08 -0800, Luis R. Rodriguez mcg...@gmail.com wrote: On Wed, Nov 18, 2009 at 11:42 AM, Bob Copeland m...@bobcopeland.com wrote: Ok, fair enough. We should try to figure out where the 0x5d and 0x43 come from. It could be memory corruption, for example, but 0x5d and 0x43 aren't poison values. You may try turning on slub/slab debugging just to be sure. He noted he sees this with iwl drivers though., Florian, please correct me if I'm wrong. You are right. Any news on this? i attached a new scan from the Laptop with intel chipset (iwlagn module). The first Cell ist the correct access point the second cell with the same ESSID doesn't exist. I don't know why iwlist scan finds this AP. The Problem with all this is very annoying, even unloading iwlagn, iwlcore, mac80211 and cfg80211 and reloading all these modules does not help. Kind Regards Florianwlan0 Scan completed : Cell 01 - Address: 00:22:B0:F5:01:59 Channel:1 Frequency:2.412 GHz (Channel 1) Quality=64/70 Signal level=-46 dBm Encryption key:on ESSID:FOOBAR Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s 9 Mb/s; 12 Mb/s; 18 Mb/s Bit Rates:24 Mb/s; 36 Mb/s; 48 Mb/s; 54 Mb/s Mode:Master Extra:tsf=0029e1199181 Extra: Last beacon: 3253ms ago IE: Unknown: 0006464F4F424152 IE: Unknown: 010882848B960C121824 IE: Unknown: 030101 IE: Unknown: 05040001 IE: Unknown: 2A0100 IE: IEEE 802.11i/WPA2 Version 1 Group Cipher : CCMP Pairwise Ciphers (1) : CCMP Authentication Suites (1) : PSK IE: Unknown: 32043048606C IE: Unknown: DD0900037F01010060FF7F Cell 02 - Address: 3E:4D:EF:91:F4:53 Channel:1 Frequency:2.412 GHz (Channel 1) Quality=64/70 Signal level=-46 dBm Encryption key:on ESSID:FOOBAR Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 6 Mb/s; 9 Mb/s 11 Mb/s; 12 Mb/s; 18 Mb/s Bit Rates:24 Mb/s; 36 Mb/s; 48 Mb/s; 54 Mb/s Mode:Master Extra:tsf=0029e118a1f0 Extra: Last beacon: 3236ms ago IE: Unknown: 0006464F4F424152 IE: Unknown: 010882848B0C12961824 IE: Unknown: 030101 IE: IEEE 802.11i/WPA2 Version 1 Group Cipher : CCMP Pairwise Ciphers (1) : CCMP Authentication Suites (1) : PSK IE: Unknown: 2A0100 IE: Unknown: 32043048606C IE: Unknown: DD0900037F01010060FF7F Cell 03 - Address: 02:23:76:F9:6C:5B Channel:6 Frequency:2.437 GHz (Channel 6) Quality=70/70 Signal level=-29 dBm Encryption key:off ESSID:G1Tether Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s Mode:Ad-Hoc Extra:tsf=00f238dc Extra: Last beacon: 3186ms ago IE: Unknown: 00084731546574686572 IE: Unknown: 010482848B96 IE: Unknown: 030106 IE: Unknown: 0602 Cell 04 - Address: 00:15:0C:AB:8A:76 Channel:6 Frequency:2.437 GHz (Channel 6) Quality=22/70 Signal level=-88 dBm Encryption key:on ESSID:A.G. Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s 36 Mb/s; 48 Mb/s; 54 Mb/s Mode:Master Extra:tsf=322bc233 Extra: Last beacon: 3176ms ago IE: Unknown: 0004412E472E IE: Unknown: 010482848B96 IE: Unknown: 030106 IE: Unknown: 050C0003 IE: Unknown: 2A0107 IE: IEEE 802.11i/WPA2 Version 1 Group Cipher : TKIP Pairwise Ciphers (1) : CCMP Authentication Suites (1) : PSK IE: Unknown: 32080C1218243048606C IE: WPA Version 1 Group Cipher : TKIP Pairwise Ciphers (1) : TKIP Authentication Suites (1)
Re: [ath5k-devel] iwlist scan shows same ap twice
On Fri, Dec 4, 2009 at 1:02 PM, Florian Engelhardt f...@dotbox.org wrote: On Wed, 18 Nov 2009 12:01:08 -0800, Luis R. Rodriguez mcg...@gmail.com wrote: On Wed, Nov 18, 2009 at 11:42 AM, Bob Copeland m...@bobcopeland.com wrote: Ok, fair enough. We should try to figure out where the 0x5d and 0x43 come from. It could be memory corruption, for example, but 0x5d and 0x43 aren't poison values. You may try turning on slub/slab debugging just to be sure. He noted he sees this with iwl drivers though., Florian, please correct me if I'm wrong. You are right. Any news on this? i attached a new scan from the Laptop with intel chipset (iwlagn module). The first Cell ist the correct access point the second cell with the same ESSID doesn't exist. I don't know why iwlist scan finds this AP. Please consider burrying iwlist and iwconfig under some ditch and use iw. The Problem with all this is very annoying, even unloading iwlagn, iwlcore, mac80211 and cfg80211 and reloading all these modules does not help. Why are you reporting iwlagn stuff on the ath5k devel list? You also did not provide feedback on the AP, whether you asked its admin about its config nor if it can be rebooted. Luis ___ ath5k-devel mailing list ath5k-devel@lists.ath5k.org https://lists.ath5k.org/mailman/listinfo/ath5k-devel
Re: [ath5k-devel] iwlist scan shows same ap twice
On Fri, Dec 04, 2009 at 01:16:54PM -0800, Luis R. Rodriguez wrote: On Fri, Dec 4, 2009 at 1:02 PM, Florian Engelhardt f...@dotbox.org wrote: On Wed, 18 Nov 2009 12:01:08 -0800, Luis R. Rodriguez mcg...@gmail.com wrote: On Wed, Nov 18, 2009 at 11:42 AM, Bob Copeland m...@bobcopeland.com wrote: Ok, fair enough. We should try to figure out where the 0x5d and 0x43 come from. It could be memory corruption, for example, but 0x5d and 0x43 aren't poison values. You may try turning on slub/slab debugging just to be sure. He noted he sees this with iwl drivers though., Florian, please correct me if I'm wrong. You are right. Any news on this? i attached a new scan from the Laptop with intel chipset (iwlagn module). The first Cell ist the correct access point the second cell with the same ESSID doesn't exist. I don't know why iwlist scan finds this AP. Please consider burrying iwlist and iwconfig under some ditch and use iw. Someone suggested reimplementing iwlist, iwconfig, etc as scripts around iw -- any takers? :-) John -- John W. LinvilleSomeday the world will need a hero, and you linvi...@tuxdriver.com might be all we have. Be ready. ___ ath5k-devel mailing list ath5k-devel@lists.ath5k.org https://lists.ath5k.org/mailman/listinfo/ath5k-devel
Re: [ath5k-devel] iwlist scan shows same ap twice
On Fri, Dec 4, 2009 at 1:49 PM, John W. Linville linvi...@tuxdriver.com wrote: On Fri, Dec 04, 2009 at 01:16:54PM -0800, Luis R. Rodriguez wrote: On Fri, Dec 4, 2009 at 1:02 PM, Florian Engelhardt f...@dotbox.org wrote: On Wed, 18 Nov 2009 12:01:08 -0800, Luis R. Rodriguez mcg...@gmail.com wrote: On Wed, Nov 18, 2009 at 11:42 AM, Bob Copeland m...@bobcopeland.com wrote: Ok, fair enough. We should try to figure out where the 0x5d and 0x43 come from. It could be memory corruption, for example, but 0x5d and 0x43 aren't poison values. You may try turning on slub/slab debugging just to be sure. He noted he sees this with iwl drivers though., Florian, please correct me if I'm wrong. You are right. Any news on this? i attached a new scan from the Laptop with intel chipset (iwlagn module). The first Cell ist the correct access point the second cell with the same ESSID doesn't exist. I don't know why iwlist scan finds this AP. Please consider burrying iwlist and iwconfig under some ditch and use iw. Someone suggested reimplementing iwlist, iwconfig, etc as scripts around iw -- any takers? :-) This may help: http://wireless.kernel.org/en/users/Documentation/iw/replace-iwconfig I think the *only* command missing is 'iwconfig wlan0 power off'. And maybe a generic 'iw link' which lists all link information for all wiphy interfaces, but that should be easy to implement, just have to get around to it. Luis ___ ath5k-devel mailing list ath5k-devel@lists.ath5k.org https://lists.ath5k.org/mailman/listinfo/ath5k-devel
Re: [ath5k-devel] iwlist scan shows same ap twice
On Wed, 18 Nov 2009 14:42:51 -0500, Bob Copeland m...@bobcopeland.com wrote: Ok, fair enough. We should try to figure out where the 0x5d and 0x43 come from. It could be memory corruption, for example, but 0x5d and 0x43 aren't poison values. You may try turning on slub/slab debugging just to be sure. Does this happen frequently enough that you'd be able to capture some packets before it happens? Something like: $ sudo su # iw dev wlan0 interface add monitor wlan0.mon # ifconfig wlan0.mon up # wireshark -i wlan0.mon # iw dev wlan0 scan I did that, but as i am no expert in wireshark, i just attached the complete log. i see three MA-WLAN APs (:43, :48, :5d). Hope this helps. Kind regards Florian___ ath5k-devel mailing list ath5k-devel@lists.ath5k.org https://lists.ath5k.org/mailman/listinfo/ath5k-devel
Re: [ath5k-devel] iwlist scan shows same ap twice
On Wed, Nov 18, 2009 at 08:31:56PM +0100, Florian Engelhardt wrote: On Wed, 18 Nov 2009 11:18:01 -0800 Luis R. Rodriguez mcg...@gmail.com wrote: On Wed, Nov 18, 2009 at 11:09 AM, Florian Engelhardt f...@dotbox.org wrote: On Tue, 17 Nov 2009 13:35:24 -0800, Luis R. Rodriguez mcg...@gmail.com wrote: That's wild. What kernel are you using? # uname -a Linux eka 2.6.31-ARCH #1 SMP PREEMPT Tue Nov 10 19:48:17 CET 2009 i686 Intel(R) Atom(TM) CPU N270 @ 1.60GHz GenuineIntel GNU/Linux Have you tried: http://wireless.kernel.org/en/users/Download/stable or http://wireless.kernel.org/en/users/Download Tried both, no change. Can you provide the output of 'iw list', your dmesg, and your 'iw dev wlan0 scan'. See attached files. Despite that i can add one additional information: I have a second Laptop with Intel WLAN Chip, and it shows exactly the same behaviour, MA-WLAN two, sometimes three times, with none of the addresses being correct. Somehow, i can not reproduce this kind of behaviour with my own wlan. It shows up only one time, not multiple, but it did two days ago on the ath5k chipset based netbook As Bob pointed out your scan shows two beacons received on different BSSes: 00:80:48:5c:86:5d 00:80:48:5c:86:48 The TSF on the second one seems odd though. Do you have access to the AP? Can you change the channel to see if you see the two beacons on a new channel? Can you try rebooting it? Sorry, no. I have no access to that AP, but i can ask the owner if he may reboot it, or if he faces any problems with it. Yeah ask him for the actual MAC address of the BSS you are supposed to be connecting to. Did you tell him your cards are seeing two beacons from it? Might want to get a sniffer an capture two beacons to show this info. Luis ___ ath5k-devel mailing list ath5k-devel@lists.ath5k.org https://lists.ath5k.org/mailman/listinfo/ath5k-devel
Re: [ath5k-devel] iwlist scan shows same ap twice
On Wed, Nov 18, 2009 at 11:42 AM, Bob Copeland m...@bobcopeland.com wrote: On Wed, Nov 18, 2009 at 08:14:10PM +0100, Florian Engelhardt wrote: On Tue, 17 Nov 2009 17:11:05 -0500, Bob Copeland m...@bobcopeland.com wrote: Hmm, the mac addresses are different and they have at least a valid OUI: 00:80:48:5C:86:5D 00:80:48:5C:86:43 Nope, this is not my AP, but i had the same behavior with my AP, but as [added Luis,list back to cc] Ok, fair enough. We should try to figure out where the 0x5d and 0x43 come from. It could be memory corruption, for example, but 0x5d and 0x43 aren't poison values. You may try turning on slub/slab debugging just to be sure. He noted he sees this with iwl drivers though., Florian, please correct me if I'm wrong. Luis ___ ath5k-devel mailing list ath5k-devel@lists.ath5k.org https://lists.ath5k.org/mailman/listinfo/ath5k-devel
Re: [ath5k-devel] iwlist scan shows same ap twice
On Tue, Nov 17, 2009 at 11:29 AM, Florian Engelhardt f...@dotbox.org wrote: Hello list, i recently have a problem with my ath5k wireless card in my Acer Aspire One Netbook. Executing iwlist scan shows some Wifi`s twice, but with different address and signal quality, which leads to me not being able to connect to this wlan. I attached an example output of iwlist scan. The WLAN MA-WLAN exists twice in the list, none of the Addresses is correct. I had the same problem with my WLAN (FOOBAR) until i moved it from channel 6 to channel 1. Can you please help me, what is going on here? This bug is realy annoying to me, couse every few days i have to change the wlan channel for it to work. Unloading an reloading the ath5k module does not help. Kind regards Florian PS: Please CC me, couse i am not on the list That's wild. What kernel are you using? Have you tried: http://wireless.kernel.org/en/users/Download/stable or http://wireless.kernel.org/en/users/Download Can you provide the output of 'iw list', your dmesg, and your 'iw dev wlan0 scan'. Luis ___ ath5k-devel mailing list ath5k-devel@lists.ath5k.org https://lists.ath5k.org/mailman/listinfo/ath5k-devel
