W dniu 05.06.2011 21:13, Bob Copeland pisze:
> On Fri, May 27, 2011 at 5:27 AM, Piotr Kaczorek
> <[email protected]> wrote:
>> Sorry, I pressed reply instead of reply all.
>>
>> W dniu 26.05.2011 14:56, Bob Copeland pisze:
>>> Please don't top-post.
>>>
>>> On Thu, May 26, 2011 at 2:48 AM, Piotr Kaczorek
>>> <[email protected]> wrote:
>>>> It seems to me i'ts ath5k issue.
>>>>
>>>> Since I started this thread I've tried few more chipsets:
>>>> VIA (vt6655) - has problems with sending packets, sometimes they are
>>>> 'broken'. Most images don't reach mobile phone correctly.
>>>> Ralink (rt2561t - rt61pci driver) - works correctly (and also uses
>>>> nl80211). Range is poor - maybe it's a matter of hardware i've bought.
>>>> Prism (ISL3886 - p54 driver) - works corretly (and also uses nl80211).
>>>>
>>>> But thanks for pointing this out. It might be issue with ath5k<->
>>>> nl80211 cooperation, as well.
>>>> Should I post a bug on kernel's bugzilla?
>> I attach gziped packet dumps (hope it will work - I'm using mailing lists
>> for the first time).
>> There are two cap files - one from my SE P1i (on which requests work as they
>> should), and one from BB Curve 8520 (on which I can associate but can't open
>> website). Both contain association, and two requests to 'made up' url's.
>> All requests should respond with the same content as my setup is quite
>> untypical - requests are intercepted with iptables, and static website
>> placed on hotspot is served in response to any request. There is also
>> dnsmasq responding with my hotspot's IP to all DNS queries.
> Well, one thing missing in both of these captures is beacons which are
> kind of important since they have the traffic indication maps. The BB
> is sending the correct AID for PS-poll requests. I do see some
> successful PS-polls like packet #3089-3091 - where the AP delivers an
> arp reply.
>
> I'll keep looking for some discrepancy but it would help if we could get
> a capture with beacons. FWIW, I've attached the script I use to collect
> data -- not perfect and may need some tweaking for different setups, but
> it grabs a lot of useful data:
>
> - monitor mode captures from both the sta and the secondary card
> - dmesg, preferably with mac80211 debugging on
> - tracepoints from ath5k and mac80211 (must have enabled them in
> kernel config and have added ath5k_trace.py[1] to
> ~/.trace-cmd/plugins/)
>
> Once you start setup.sh then you need to associate with the AP in the
> usual way (script assumes they live on channel 11) and it grabs 5 minutes
> of data or until you ctrl-c it.
>
> [1] http://bobcopeland.com/srcs/ath5k_trace.py
>
This script should be run on my hotspot or on 'external sniffer' (e.g.
my laptop)? What does it require? I get:
File "ath5k_trace.py", line 1, in <module>
import tracecmd
ImportError: No module named tracecmd
What setup.sh are you writing about?
_______________________________________________
ath5k-devel mailing list
[email protected]
https://lists.ath5k.org/mailman/listinfo/ath5k-devel
