Issues with urtwn

[Matthias Apitz]

El día Monday, November 03, 2014 a las 09:43:14AM -0800, Adrian Chadd escribió:

> Ah, chances are it's being loaded automatically at startup when devd
> loads your USB wifi module.
> 
> Just make sure you've commented out the wlan devices (but not
> options!) and rebuilt your kernel to not have wlan included.

The problem is reproducible fine: I'm running in a loop SCP traffic up
and down to my ISP host; when the background scan every five minutes
takes place the traffic gets STALLED and IP comes not to work again:

Nov 23 17:13:33 unixarea dhclient: New Broadcast Address (wlan0): 192.168.2.255
Nov 23 17:13:33 unixarea dhclient: New Routers (wlan0): 192.168.2.1
Nov 23 17:18:33 unixarea kernel: wlan0: ieee80211_bg_scan: active scan, ticks 36537257 duration 150
Nov 23 17:18:33 unixarea kernel: wlan0: [00:13:f7:0d:08:48] sta power save mode on
Nov 23 17:18:33 unixarea kernel: wlan0: scan_task: chan   7g ->   1g [active, dwell min 20ms max 150ms]
Nov 23 17:18:33 unixarea kernel: wlan0: scan_task: stopped, [ticks 36537415, dwell min 20 scanend 36537408]

from now the interface does not let pass frames anymore

Nov 23 17:18:33 unixarea kernel: wlan0: ieee80211_sta_tim_notify: TIM=1
Nov 23 17:18:34 unixarea last message repeated 3 times
Nov 23 17:18:34 unixarea kernel: wlan0: [00:13:f7:0d:08:48] save frame with age 40, 1 now queued
Nov 23 17:18:34 unixarea kernel: wlan0: [00:13:f7:0d:08:48] save frame with age 0, 2 now queued
Nov 23 17:18:34 unixarea kernel: wlan0: ieee80211_sta_tim_notify: TIM=1
Nov 23 17:18:35 unixarea last message repeated 14 times
Nov 23 17:18:35 unixarea kernel: wlan0: [00:13:f7:0d:08:48] save frame with age 0, 3 now queued
Nov 23 17:18:35 unixarea kernel: wlan0: ieee80211_sta_tim_notify: TIM=1
...

I tested the same in an older 10-ALPHA4 laptop (running r255948 from
October 2013) with the same physical WLAN card; there is no problem with
the bg scans every 5 minutes, it just goes ahead after any scan; this is
an issue in head.

	matthias

-- 
Matthias Apitz, guru at unixarea.de, http://www.unixarea.de/ +49-170-4527211
1989-2014: The Wall was torn down so that we go to war together again.
El Muro ha sido derribado para que nos unimos en ir a la guerra otra vez.
Diese Grenze wurde aufgehoben damit wir gemeinsam wieder in den Krieg ziehen.