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Date:      Wed, 18 Aug 2010 18:20:09 +0800
From:      Adrian Chadd <adrian@freebsd.org>
To:        Ian FREISLICH <ianf@clue.co.za>
Cc:        Rui Paulo <rpaulo@freebsd.org>, current@freebsd.org
Subject:   Re: AR9280 "bb hang" and other
Message-ID:  <AANLkTinc0W1WF5A-7V3y=L7EcWH8cHTDSNz65CRWVBqS@mail.gmail.com>
In-Reply-To: <E1Oldys-0000Wx-RN@clue.co.za>
References:  <E1OlHMU-0000Vo-Lf@clue.co.za> <0D4EA23D-605F-4F15-B07E-6019055EA6F5@FreeBSD.org> <E1Oldys-0000Wx-RN@clue.co.za>

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Can you please change one at a time and see which affected it?

Thanks,


Adrian

On 18 August 2010 16:26, Ian FREISLICH <ianf@clue.co.za> wrote:
> Rui Paulo wrote:
>> On 17 Aug 2010, at 09:17, Ian FREISLICH wrote:
>> > Aug 17 09:29:08 mini kernel: ath0: bb hang detected (0x80), resetting
>> > Aug 17 09:37:57 mini kernel: ath0: bb hang detected (0x80), resetting
>> > Aug 17 09:49:10 mini kernel: ath0: bb hang detected (0x80), resetting
>> > Aug 17 10:06:17 mini kernel: ath0: bb hang detected (0x80), resetting
>>
>> BB hangs are a problem with the 9280 but I don't know how to fix.
>> Hardware errors shouldn't happen, but this might mean you have
>> very aggressive power reduction settings (ACPI C3, etc.) that are
>> interfering with the atheros card. This has happened to me in the
>> past.
>
> Now, I've made 2 changes so I'm not sure which affected it:
>
> 1. I replaced the card with an AR9285
>
> ath0@pci0:1:0:0: class=3D0x028000 card=3D0x7167144f chip=3D0x002b168c rev=
=3D0x01 hdr=3D0x00
> =A0 =A0vendor =A0=3D 'Atheros Communications Inc.'
> =A0 =A0device =A0=3D 'Atheros AR9285 Wireless LAN 802.11 a/b/g/n Controll=
er (AR928x)'
> =A0 =A0class =A0 =3D network
>
> 2. I changed the channel on our AP. (there were 2 other nearby APs
> =A0 on the same channel).
>
> I noticed that I got a lot more bb hangs at the office compared to
> home - there are a lot more APs nearby:
>
> [mini] /usr/home/ianf $ ifconfig wlan0 scan
> SSID/MESH ID =A0 =A0BSSID =A0 =A0 =A0 =A0 =A0 =A0 =A0CHAN RATE =A0 S:N =
=A0 =A0 INT CAPS
> Ignition =A0 =A0 =A0 =A000:26:bb:78:b4:91 =A0 =A06 =A0 54M -89:-96 =A0100=
 EPS =A0RSN HTCAP WPA WME
> Eco Impact =A0 =A0 =A000:22:3f:55:80:bc =A0 11 =A0 54M -92:-96 =A0100 EP =
=A0 HTCAP WPS WPA WME
> Viic =A0 =A0 =A0 =A0 =A0 =A000:14:6c:49:3f:1c =A0 11 =A0 54M -92:-96 =A01=
00 EPS =A0WPA ATH WME
> cluelan =A0 =A0 =A0 =A0 00:30:4f:58:bf:96 =A0 =A07 =A0 54M -72:-96 =A0100=
 EPS =A0WPA ATH WME
> PRIVATE LABEL =A0 00:19:70:05:28:c4 =A0 =A03 =A0 54M -79:-96 =A0100 EP =
=A0 WPA WME
> blinkbroom1 =A0 =A0 00:18:4d:1c:8e:3a =A0 =A05 =A0 54M -89:-96 =A0100 EPS=
 =A0WPA
> Sasman =A0 =A0 =A0 =A0 =A000:26:f2:46:2c:de =A0 =A01 =A0 54M -93:-96 =A01=
00 EP =A0 WME
> cocoa =A0 =A0 =A0 =A0 =A0 00:26:f2:3d:aa:13 =A0 =A03 =A0 54M -94:-96 =A02=
00 EPS =A0WME HTCAP ATH
> CareCross =A0 =A0 =A0 30:46:9a:1e:b0:ca =A0 =A08 =A0 54M -35:-96 =A0100 E=
PS =A0RSN WPA
>
> We're "cluelan" and we were on channel 3. =A0Previously, I was seeing
> a hang every 10 minutes or so, since changing the channel to a
> "free" one, I haven't had a hang in the last 40 minutes. =A0The only
> bb hang I've had was when I deactivated the RF switch on netbook
> and that was a semi-expected result.
>
> Ian
>
> --
> Ian Freislich
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