Message-ID: <4F421F5C.3040900@broadcom.com> (sfid-20120220_112552_871601_94486D2B)
Date: Mon, 20 Feb 2012 11:24:28 +0100
From: "Arend van Spriel" <arend@broadcom.com>
MIME-Version: 1.0
To: "Larry Finger" <Larry.Finger@lwfinger.net>
cc: wireless <linux-wireless@vger.kernel.org>,
	"Franky (Zhenhui) Lin" <frankyl@broadcom.com>,
	"Kan Yan" <kanyan@broadcom.com>,
	"Roland Vossen" <rvossen@broadcom.com>,
	"Henry Ptasinski" <henryp@broadcom.com>,
	"Brett Rudley" <brudley@broadcom.com>
Subject: Re: Instability in brcmsmac
References: <4F416159.9000305@lwfinger.net>
In-Reply-To: <4F416159.9000305@lwfinger.net>
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 charset=iso-8859-1;
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Sender: linux-wireless-owner@vger.kernel.org

On 02/19/2012 09:53 PM, Larry Finger wrote:
> Arend,
>
> I have just started testing brcmsmac with my BCM43224 card. I find it rather
> unstable. A typical cycle between authentication and disassociating is as follows:
>
> [ 1066.227729] wlan8: authenticate with 00:1a:70:46:ba:b1
> [ 1066.238397] wlan8: send auth to 00:1a:70:46:ba:b1 (try 1/3)
> [ 1066.440128] wlan8: send auth to 00:1a:70:46:ba:b1 (try 2/3)
> [ 1066.443739] wlan8: authenticated
> [ 1066.448139] wlan8: associate with 00:1a:70:46:ba:b1 (try 1/3)
> [ 1066.456657] wlan8: RX AssocResp from 00:1a:70:46:ba:b1 (capab=0x411 status=0
> aid=1)
> [ 1066.456673] wlan8: associated
> [ 1066.458051] ieee80211 phy0: brcms_ops_bss_info_changed: qos enabled: true
> (implement)
> [ 1066.458067] ieee80211 phy0: brcmsmac: brcms_ops_bss_info_changed: associated
> [ 1066.458087] ieee80211 phy0: changing basic rates failed: -22
> [ 1066.458101] ieee80211 phy0: brcms_ops_bss_info_changed: arp filtering:
> enabled true, count 1 (implement)
> [ 1076.464670] wlan8: disassociating from 00:1a:70:46:ba:b1 by local choice
> (reason=3)
> [ 1076.465981] ieee80211 phy0: brcms_ops_bss_info_changed: qos enabled: false
> (implement)
> [ 1076.466051] ieee80211 phy0: brcmsmac: brcms_ops_bss_info_changed: disassociated
> [ 1076.466074] ieee80211 phy0: brcms_ops_bss_info_changed: arp filtering:
> enabled false, count 1 (implement)
> [ 1076.490224] cfg80211: Calling CRDA to update world regulatory domain
> [ 1076.507338] wlan8: deauthenticating from 00:1a:70:46:ba:b1 by local choice
> (reason=3)
>
> The period of time that the interface is up ranges from 10 - 200 seconds. The
> connection is WPA-TKIP and the kernel is master-2012-02-15-510-g20b79b4 from
> wireless-testing with local patches applied to other drivers. Both brcmsmac and
> bcma are untouched.
>
> Thanks,
>
> Larry

Hi Larry,

Thanks. There have been a couple of other people indicating a similar 
issue. We run tests nightly on bcm43224 equipped systems and brcmsmac 
mostly runs fine apart from occasional mac80211 interfacing issue, which 
is one reason to run these tests. I will dig deeper into this.

Gr. AvS