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From: Kalle Valo <kalle.valo@iki.fi>
To: Jaswinder Singh Rajput <jaswinder@kernel.org>
Cc: Michael Buesch <mb@bu3sch.de>,
	Sujith <Sujith.Manoharan@atheros.com>,
	wireless <linux-wireless@vger.kernel.org>,
	David Miller <davem@davemloft.net>,
	LKML <linux-kernel@vger.kernel.org>
Subject: Re: ath9k becon loss messages
Date: Sun, 05 Apr 2009 13:13:12 +0300	[thread overview]
Message-ID: <87bprbif2f.fsf@litku.valot.fi> (raw)
In-Reply-To: <1238925174.4120.12.camel@localhost.localdomain> (Jaswinder Singh Rajput's message of "Sun\, 05 Apr 2009 15\:22\:54 +0530")

Jaswinder Singh Rajput <jaswinder@kernel.org> writes:

>> And besides that, I think one can easily remotely trigger this
>> message and flood the logs. So it should probably _also_ be
>> ratelimited.
>
> normally it prints after 120 seconds:
>
> [ 1078.848434] wlan0: beacon loss from AP 00:11:95:9e:df:f6 - sending probe request
> [ 1198.822913] wlan0: beacon loss from AP 00:11:95:9e:df:f6 - sending probe request
> [ 1318.824931] wlan0: beacon loss from AP 00:11:95:9e:df:f6 - sending probe request

Then there is something happening in ath9k or your AP which prevents
ath9k from receiving beacons. Try pinging your AP with 100 ms
interval. Do you see anything happening in 120 s intervals?

If ath9k can't receive beacons in a 120 s interval, I would expect to
see delays also in the data path at the same time.

-- 
Kalle Valo

  reply	other threads:[~2009-04-05 10:13 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-04-05  9:23 ath9k becon loss messages Jaswinder Singh Rajput
2009-04-05  9:29 ` Michael Buesch
2009-04-05  9:36   ` Michael Buesch
2009-04-05 10:03     ` Kalle Valo
2009-04-05 11:00     ` Jaswinder Singh Rajput
2009-04-05  9:52   ` Jaswinder Singh Rajput
2009-04-05 10:13     ` Kalle Valo [this message]
2009-04-06  7:14       ` Helmut Schaa
2009-04-06  8:17         ` Kalle Valo
2009-04-06  8:56           ` Helmut Schaa
2009-04-06  9:04             ` Kalle Valo
2009-04-06 10:17         ` Michael Buesch
2009-04-06 10:23           ` Kalle Valo
2009-04-06 10:51             ` Helmut Schaa
2009-04-06 11:05               ` Kalle Valo
2009-04-06 15:18                 ` Kalle Valo
2009-04-06 18:00                   ` John W. Linville
2009-04-07  5:54                     ` Kalle Valo
2009-04-07 13:53                       ` John W. Linville
2009-04-07 15:19                         ` Kalle Valo

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