Subject: Re: getting "ath5k phy0: noise floor calibration timeout"
From: Dan Williams <dcbw@redhat.com>
To: Holger Schurig <hs4233@mail.mn-solutions.de>
Cc: linux-wireless@vger.kernel.org,
	"Luis R. Rodriguez" <mcgrof@gmail.com>
In-Reply-To: <200909210902.23723.hs4233@mail.mn-solutions.de>
References: <200909210902.23723.hs4233@mail.mn-solutions.de>
Content-Type: text/plain
Date: Tue, 22 Sep 2009 16:29:21 -0700
Message-Id: <1253662161.2510.59.camel@localhost.localdomain>
Mime-Version: 1.0
Sender: linux-wireless-owner@vger.kernel.org

On Mon, 2009-09-21 at 09:02 +0200, Holger Schurig wrote:
> I kept my laptop the week-end on. The devices was unused during
> that time. I got a bunch output into my syslog:

I get that all the time, and have since 2.6.27 or earlier.  If it's a
real bug, we should fix it, but if it's just an informational message,
maybe we should silence it?

Dan

> Sep 18 17:30:03 laptop kernel: ##HS cfg80211_bss_expire:129 0
> Sep 18 17:30:03 laptop kernel: ##HS expire 00:1b:d4:44:35:90
> Sep 18 17:30:03 laptop kernel: ##HS expire 00:13:19:80:da:30
> Sep 18 17:30:03 laptop kernel: ##HS expire 00:1b:53:11:dc:40
> Sep 18 18:15:04 laptop kernel: ath5k phy0: noise floor calibration timeout (2412MHz)
> Sep 18 18:26:12 laptop kernel: ath5k phy0: noise floor calibration timeout (2412MHz)
> Sep 19 11:12:09 laptop kernel: ath5k phy0: noise floor calibration timeout (2412MHz)
> Sep 19 11:29:36 laptop kernel: ath5k phy0: noise floor calibration timeout (2412MHz)
> Sep 19 11:47:57 laptop kernel: ath5k phy0: noise floor calibration timeout (2412MHz)
> Sep 19 12:31:05 laptop kernel: ath5k phy0: noise floor calibration timeout (2412MHz)
> Sep 19 13:06:42 laptop kernel: ath5k phy0: noise floor calibration timeout (2412MHz)
> Sep 19 14:07:51 laptop kernel: ath5k phy0: noise floor calibration timeout (2412MHz)
> Sep 19 14:10:31 laptop kernel: ath5k phy0: noise floor calibration timeout (2412MHz)
> Sep 19 14:12:00 laptop kernel: ath5k phy0: noise floor calibration timeout (2412MHz)
> Sep 20 00:06:20 laptop kernel: ath5k phy0: noise floor calibration timeout (2412MHz)
> Sep 20 07:46:24 laptop kernel: ath5k phy0: noise floor calibration timeout (2412MHz)
> Sep 20 16:36:43 laptop kernel: ath5k phy0: noise floor calibration timeout (2412MHz)
> Sep 20 16:47:43 laptop kernel: ath5k phy0: noise floor calibration timeout (2412MHz)
> Sep 20 16:52:43 laptop kernel: ath5k phy0: noise floor calibration timeout (2412MHz)
> Sep 20 17:01:43 laptop kernel: ath5k phy0: noise floor calibration timeout (2412MHz)
> Sep 20 20:07:57 laptop kernel: ath5k phy0: noise floor calibration timeout (2412MHz)
> Sep 21 06:22:55 laptop last message repeated 2 times
> Sep 21 06:26:00 laptop last message repeated 2 times
> Sep 21 06:28:26 laptop kernel: ath5k phy0: noise floor calibration timeout (2412MHz)
> Sep 21 06:33:14 laptop kernel: ath5k phy0: noise floor calibration timeout (2412MHz)
> Sep 21 06:38:34 laptop last message repeated 2 times
> Sep 21 06:40:21 laptop kernel: ath5k phy0: noise floor calibration timeout (2412MHz)
> Sep 21 06:41:40 laptop kernel: ath5k phy0: noise floor calibration timeout (2412MHz)
> Sep 21 06:43:44 laptop kernel: ath5k phy0: noise floor calibration timeout (2412MHz)
> Sep 21 06:55:17 laptop kernel: ath5k phy0: noise floor calibration timeout (2412MHz)
> Sep 21 07:03:10 laptop kernel: ath5k phy0: noise floor calibration timeout (2412MHz)
> Sep 21 07:04:35 laptop last message repeated 2 times
> Sep 21 07:06:11 laptop kernel: ath5k phy0: noise floor calibration timeout (2412MHz)
> Sep 21 07:16:58 laptop kernel: ath5k phy0: noise floor calibration timeout (2412MHz)
> Sep 21 07:21:37 laptop last message repeated 2 times
> 
> Is this anything where I should care?  Or can I just
> ignore that?  If the latter is the case, should I add a
> patch that only three consecutive calibration timeouts
> produce a message, so that the log doesn't get "spammed" ?
>