From owner-freebsd-wireless@FreeBSD.ORG Wed Apr 9 01:21:20 2014 Return-Path: Delivered-To: freebsd-wireless@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 31351A76; Wed, 9 Apr 2014 01:21:20 +0000 (UTC) Received: from mail-qc0-x229.google.com (mail-qc0-x229.google.com [IPv6:2607:f8b0:400d:c01::229]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id D573C1314; Wed, 9 Apr 2014 01:21:19 +0000 (UTC) Received: by mail-qc0-f169.google.com with SMTP id i17so2063900qcy.0 for ; Tue, 08 Apr 2014 18:21:19 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:sender:in-reply-to:references:date:message-id:subject :from:to:cc:content-type; bh=EzaCpH5BD8lwqEpQI/Gs5Vy/hwaHmWC3SqZckWfuBvc=; b=NuoeFVyYMw98MD2NKIXAyIJjcfeh4qW4Xy0BbPkjau1WX3S3ghb6aiRQeTW+1mc3pV QoZxcOys0i09+zAlwnZMMXWLx579QQDru5QxFKOB2pL7IeUAALtBH60VFKqwq7P95+gz /6fLAotEXCOI1S7ELZNraLB9WwrL9q6pl2EFZ+UGVI6/9brxMvsGXaP1MgnMPSdfafjr GGwF/kXWFh1InG6T/cT93n7lrDJbJqF4xElBJ0oYxZg+/9OcawpZ9xLBHKikHc81BgRw hgvbPdkrBG96g1jKoMYWnGYPtn2sKGdjyDQ2eVEHNc2CkWB6Qd3v3/Plc5x3x6SAcY5l owlg== MIME-Version: 1.0 X-Received: by 10.224.151.210 with SMTP id d18mr8453130qaw.98.1397006478929; Tue, 08 Apr 2014 18:21:18 -0700 (PDT) Sender: adrian.chadd@gmail.com Received: by 10.224.50.206 with HTTP; Tue, 8 Apr 2014 18:21:18 -0700 (PDT) In-Reply-To: <1397006320.5173.2.camel@powernoodle.corp.yahoo.com> References: <20140331073054.5d7642d6@X220.alogt.com> <1397006320.5173.2.camel@powernoodle.corp.yahoo.com> Date: Tue, 8 Apr 2014 18:21:18 -0700 X-Google-Sender-Auth: buylJA1go-Stxd9Ftjko9iX2jOY Message-ID: Subject: Re: iwn0 hangs randomly when starting the machine From: Adrian Chadd To: Sean Bruno Content-Type: text/plain; charset=ISO-8859-1 Cc: "freebsd-wireless@freebsd.org" X-BeenThere: freebsd-wireless@freebsd.org X-Mailman-Version: 2.1.17 Precedence: list List-Id: "Discussions of 802.11 stack, tools device driver development." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 09 Apr 2014 01:21:20 -0000 Hi, 20/40 coex is supposed to be some corner of the spec that notices whether there's a 20mhz only AP on the extension channel and if so, flip everyone over to 20MHz. Is your DIR825 2GHz channel set to 20mhz or 40mhz? -a On 8 April 2014 18:18, Sean Bruno wrote: > On Mon, 2014-03-31 at 07:30 +0800, Erich Dollansky wrote: >> Hi, >> >> since I upgraded to r263767, I have the following problem: >> >> Wireless does not start all the while. When it does not start, it hangs >> then forever. wpa_supplicant's state in top is then '-'. If I start >> wpa_supplicant by hand, it will hang and it cannot be stopped by >> control C. The light indicating that wireless is up is never on in this >> case. Rebooting the machine solves the problem. I did not find any >> other way to solve as the wireless related commands will hang. >> >> When the wireless network comes up, I can work just normal. >> >> Erich >> >> PS: >> >> The hardware: >> >> iwn0: mem 0xf2500000-0xf2501fff irq 17 >> at device 0.0 on pci3 > > Hrm ... so I have this one in my T520. > > I've been experimenting with routers and such ... and I found something > *interesting* with iwn(4). > > On my dlink dir825-C1 I have a channel option "HT20/40 Coexistence". If > I disable this, I cannot associate in the 2.4G hz channel at all. I > don't know if this is clueful, but it seems to mirror my problems at > work. Associates for a moment and then drops. > > Since I don't know what this really means, I thought I'd chuck it over > here and see if its meaningful. > > sean