From owner-freebsd-net@FreeBSD.ORG Tue Oct 11 06:24:46 2011 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 5B9041065675 for ; Tue, 11 Oct 2011 06:24:46 +0000 (UTC) (envelope-from moonlightakkiy@yahoo.ca) Received: from nm23-vm0.bullet.mail.bf1.yahoo.com (nm23-vm0.bullet.mail.bf1.yahoo.com [98.139.212.191]) by mx1.freebsd.org (Postfix) with SMTP id B8C888FC0A for ; Tue, 11 Oct 2011 06:24:45 +0000 (UTC) Received: from [98.139.212.148] by nm23.bullet.mail.bf1.yahoo.com with NNFMP; 11 Oct 2011 06:11:20 -0000 Received: from [98.139.211.196] by tm5.bullet.mail.bf1.yahoo.com with NNFMP; 11 Oct 2011 06:11:20 -0000 Received: from [127.0.0.1] by smtp205.mail.bf1.yahoo.com with NNFMP; 11 Oct 2011 06:11:20 -0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yahoo.ca; s=s1024; t=1318313480; bh=8LzzhW5D5MVmQv3mByKyknn0umOWMHF8X44xJuVDqmk=; h=X-Yahoo-Newman-Id:X-Yahoo-Newman-Property:X-YMail-OSG:X-Yahoo-SMTP:Received:Received:MIME-Version:Received:Received:Date:Message-ID:Subject:From:To:Cc:Content-Type:Content-Transfer-Encoding; b=UjkkJrWMJQKAvQc5/YdAKyFPRM83zhlrIC0JSsb9suXWz+qZPmTV0HjcV/34+AyLn7L1855DJtvdTWrPY7De/ttUQluKzw7TwzTv3+Z3gmmtXr5SWVltu2+1OmLZmn9tp/8dUQHpNo1qMmGKrizBGzQKZGWJP5QOpfUCFbyeRfQ= X-Yahoo-Newman-Id: 203724.55708.bm@smtp205.mail.bf1.yahoo.com X-Yahoo-Newman-Property: ymail-3 X-YMail-OSG: D3I7FoIVM1n.EatIKy6rhfNxT76DxlerAOdTg5ev2_szKS_ xE_S38ShneDHpC..Pgf1nE4DJtUKHyBCRyJbhY7Es5zERW1Jenwbbh7q3ndU snAYiue_7KojAzprY9BGvX45Y3is3QK7x3cPbDZLP0zw.pj9i07ETv6oEusz UYsiDQuKShRkHHxiVHpXb3vDJP50b2taJrKuA6ErDnLTq6Zf1.lUI63ASf1v 0rVjm1wahZ3cwGZIyGWWyEEWp4KcQEBmD4Snxd.OEkh1aOcOtHMmXFWn7tjs ZVGhvQIVJx7jBmw4lUas9OntW_g2Np95mMANB6VtvwyDPE.QR_tSbg6V8Uv. RIIjB6oEA0Q82pZR7Qi0VAg5oiiVIYDncHJlwMCaJ7vEHZj4nrt9TMN89P2. 3uLm286Qq3.ElxfjIJ87i X-Yahoo-SMTP: Xr6qjFWswBAEmd20sAvB4Q3keqXvXsIH9TjJ Received: from mail-iy0-f182.google.com (moonlightakkiy@209.85.210.182 with plain) by smtp205.mail.bf1.yahoo.com with SMTP; 10 Oct 2011 23:11:20 -0700 PDT Received: by iaby12 with SMTP id y12so4345080iab.13 for ; Mon, 10 Oct 2011 23:11:19 -0700 (PDT) MIME-Version: 1.0 Received: by 10.231.50.204 with SMTP id a12mr9838850ibg.11.1318313099216; Mon, 10 Oct 2011 23:04:59 -0700 (PDT) Received: by 10.231.12.139 with HTTP; Mon, 10 Oct 2011 23:04:59 -0700 (PDT) Date: Tue, 11 Oct 2011 00:04:59 -0600 Message-ID: From: PseudoCylon To: Chuck Burns , Gary Palmer Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Cc: freebsd-net@freebsd.org, Adrian Chadd , Arnaud Lacombe Subject: Re: [urtw] Wifi link dying randomly. reboot required to reconnect. X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 11 Oct 2011 06:24:46 -0000 > Date: Thu, 6 Oct 2011 19:02:15 -0500 > From: Chuck Burns > Subject: Re: [urtw] Wifi link dying randomly. reboot required to > =A0 =A0 =A0 =A0reconnect. > To: Gary Palmer > Cc: freebsd-net@freebsd.org > Message-ID: <201110061902.15838.break19@gmail.com> > Content-Type: Text/Plain; =A0charset=3D"iso-8859-1" > > > options =A0 =A0 =A0 =A0 KDB =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 # Ker= nel debugger related code > options =A0 =A0 =A0 =A0 KDB_TRACE =A0 =A0 =A0 =A0 =A0 =A0 =A0 # Print a s= tack trace for a panic > #options =A0 =A0 =A0 =A0KDB_UNATTENDED =A0 =A0 =A0 =A0 =A0# Reboot on pan= ic > options WITNESS # add me With run(4) (another usb dangle), there is a LOR between node lock and driver lock in if_raw_xmit(). Maybe, stuck on sending mgmt frames -> hang/disconnected from AP? With run(4), the LOR hasn't caused dead lock in 11abg mode, but in 11n mode, it causes dead lock every time. You run it in 11g mode, but it might be having bad hair day occasionally. Next time, rather than unplugging the device to induce a panic, wait and see if the computer will completely be locked up. AK