Gmane
Favicon
From: Benoit PAPILLAULT <benoit.papillault <at> free.fr>
Subject: Re: Problem with DFS
Newsgroups: gmane.linux.drivers.madwifi.devel
Date: 2008-07-18 19:29:31 GMT (25 weeks, 7 hours and 56 minutes ago)

Gabriele Alberti a écrit :
| Hello,
| I am currently using madwifi-dfs r3800, and I am noticing this behaviour.
| I build an ap, (outdoor=1, countrycode 380 (italy)) and issue athchan
| 100-140. I issue ifconfig up and the ath starts looking for radars, as
| expected. After the timeout occurs (no radars found) there is no
| transmissions at all of beacon. The ath seems dead.
| Taking a look at the code and enabling debug, i see
| ath_dfs_cac_completed() is called, CHANNEL_DFS_CLEAR is set
| (_ath_set_dfs_clear(), row 9631 in file if_ath.c) but after few lines
| ath_reset() is called, which apparently clears all flags, including
| CHANNEL_DFS_CLEAR, and the beacon doesnt go on air (I get "Invoked a
| transmit function before end of DFS channel availability check").
|
| Is that normal? Any hint?
| Obviously, re-setting CHANNEL_DFS_CLEAR in ath_reset() only if it was
| enabled is easy and it works, but I dont know if that is a correct way
| to act..
|
| Thanks in advance,
|
| G.

Hi Gabriele,

I think this bug has been introduced in r3774. Could you try testing
r3762? By the way, STA mode has a bug on DFS channels which prevent
association. I'll fix it in the beginning of next week.

Regards,
Benoit