From owner-freebsd-net@FreeBSD.ORG Mon Feb 20 07:56:59 2012 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 B83E31065672 for ; Mon, 20 Feb 2012 07:56:59 +0000 (UTC) (envelope-from adrian.chadd@gmail.com) Received: from mail-wi0-f182.google.com (mail-wi0-f182.google.com [209.85.212.182]) by mx1.freebsd.org (Postfix) with ESMTP id 4180A8FC13 for ; Mon, 20 Feb 2012 07:56:58 +0000 (UTC) Received: by wibhn14 with SMTP id hn14so4320202wib.13 for ; Sun, 19 Feb 2012 23:56:58 -0800 (PST) Received-SPF: pass (google.com: domain of adrian.chadd@gmail.com designates 10.216.82.201 as permitted sender) client-ip=10.216.82.201; Authentication-Results: mr.google.com; spf=pass (google.com: domain of adrian.chadd@gmail.com designates 10.216.82.201 as permitted sender) smtp.mail=adrian.chadd@gmail.com; dkim=pass header.i=adrian.chadd@gmail.com Received: from mr.google.com ([10.216.82.201]) by 10.216.82.201 with SMTP id o51mr3884595wee.6.1329724618147 (num_hops = 1); Sun, 19 Feb 2012 23:56:58 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=mime-version:sender:in-reply-to:references:date :x-google-sender-auth:message-id:subject:from:to:cc:content-type :content-transfer-encoding; bh=aBwG3BOuhrOaFlHSkX9x8b2QKC3Cgy3ABiZJkm59goI=; b=M0pqTx8gPu84BW8PpoK4ARkcmUttBf2gyUddAjpFd/b23Kp6OwEACTTQwVi4+9YSE+ meYulosD10WlQzFDO87r67/4UKRrgwlua/8WBhaX1PWVTCJbUxBKfRhbZsd+Em2Wk3Jq pMiNbKGL/mmalE0guoBIJOkmKM2N0/UpTEloo= MIME-Version: 1.0 Received: by 10.216.82.201 with SMTP id o51mr3236789wee.6.1329724618085; Sun, 19 Feb 2012 23:56:58 -0800 (PST) Sender: adrian.chadd@gmail.com Received: by 10.216.154.199 with HTTP; Sun, 19 Feb 2012 23:56:58 -0800 (PST) In-Reply-To: References: Date: Sun, 19 Feb 2012 23:56:58 -0800 X-Google-Sender-Auth: fovt4KMpxx_wOKd9nh83nalBE5Y Message-ID: From: Adrian Chadd To: Adam Twardowski Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Cc: freebsd-net@freebsd.org Subject: Re: [urtw] Random wireless crash / kernel panic 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: Mon, 20 Feb 2012 07:56:59 -0000 Hi, Do you still have the kernel? On 19 February 2012 18:23, Adam Twardowski wrot= e: > Hello, I submitted a bug report the other day regarding a kernel panic > related to the urtw driver. =A0If anyone needs any additional > infromation, please let me know. It looks like there's no node associated with that particular TX. Change: if (m->m_flags & M_TXCB) { to if ((m->m_flags & M_TXCB) && (data->ni !=3D NULL)) { .. that may fix the crash but it doesn't explain how an mbuf marked M_TXCB has no node.. Adrian