From owner-freebsd-bugs@FreeBSD.ORG Mon Jul 23 21:40:10 2012 Return-Path: Delivered-To: freebsd-bugs@hub.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 0FD1B1065696 for ; Mon, 23 Jul 2012 21:40:10 +0000 (UTC) (envelope-from gnats@FreeBSD.org) Received: from freefall.freebsd.org (freefall.freebsd.org [IPv6:2001:4f8:fff6::28]) by mx1.freebsd.org (Postfix) with ESMTP id C30C88FC0A for ; Mon, 23 Jul 2012 21:40:09 +0000 (UTC) Received: from freefall.freebsd.org (localhost [127.0.0.1]) by freefall.freebsd.org (8.14.5/8.14.5) with ESMTP id q6NLe9Pn077191 for ; Mon, 23 Jul 2012 21:40:09 GMT (envelope-from gnats@freefall.freebsd.org) Received: (from gnats@localhost) by freefall.freebsd.org (8.14.5/8.14.5/Submit) id q6NLe9EW077190; Mon, 23 Jul 2012 21:40:09 GMT (envelope-from gnats) Resent-Date: Mon, 23 Jul 2012 21:40:09 GMT Resent-Message-Id: <201207232140.q6NLe9EW077190@freefall.freebsd.org> Resent-From: FreeBSD-gnats-submit@FreeBSD.org (GNATS Filer) Resent-To: freebsd-bugs@FreeBSD.org Resent-Reply-To: FreeBSD-gnats-submit@FreeBSD.org, Takanori Watanabe Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 8BA88106564A for ; Mon, 23 Jul 2012 21:33:47 +0000 (UTC) (envelope-from nobody@FreeBSD.org) Received: from red.freebsd.org (red.freebsd.org [IPv6:2001:4f8:fff6::22]) by mx1.freebsd.org (Postfix) with ESMTP id 75B738FC1A for ; Mon, 23 Jul 2012 21:33:47 +0000 (UTC) Received: from red.freebsd.org (localhost [127.0.0.1]) by red.freebsd.org (8.14.4/8.14.4) with ESMTP id q6NLXlxW025693 for ; Mon, 23 Jul 2012 21:33:47 GMT (envelope-from nobody@red.freebsd.org) Received: (from nobody@localhost) by red.freebsd.org (8.14.4/8.14.4/Submit) id q6NLXkvE025692; Mon, 23 Jul 2012 21:33:46 GMT (envelope-from nobody) Message-Id: <201207232133.q6NLXkvE025692@red.freebsd.org> Date: Mon, 23 Jul 2012 21:33:46 GMT From: Takanori Watanabe To: freebsd-gnats-submit@FreeBSD.org X-Send-Pr-Version: www-3.1 Cc: Subject: kern/170096: Dyanamically-attached network interface will crash with VIMAGE enabled kernel X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 23 Jul 2012 21:40:10 -0000 >Number: 170096 >Category: kern >Synopsis: Dyanamically-attached network interface will crash with VIMAGE enabled kernel >Confidential: no >Severity: non-critical >Priority: low >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Mon Jul 23 21:40:09 UTC 2012 >Closed-Date: >Last-Modified: >Originator: Takanori Watanabe >Release: FreeBSD 10.0-CURRENT >Organization: >Environment: FreeBSD konata.init-main.com 10.0-CURRENT FreeBSD 10.0-CURRENT #7 r222214:238558M: Thu Jul 19 02:07:57 JST 2012 takawata@konata.init-main.com:/sys/i386/compile/LIEUTENANT i386 >Description: In VIMAGE network stack, curvnet macro is frequently referenced. It is actually reference td_vnet member in curthread structure. Usual user thread has valid pointer in td_vnet, but kernel thread, by which some dynamic interface attached, have initialized with NULL, so kernel will crash when curvnet is referenced. >How-To-Repeat: Plug dynamic network interface, like USB wlan, bluetooth or something, and kernel will crash where VNET() is refenced, like ng_make_node_common(); (I confirmed in USB only, but it may not limited in USB if my idea is correct.) >Fix: None yet. >Release-Note: >Audit-Trail: >Unformatted: