From owner-freebsd-net@FreeBSD.ORG Thu Dec 15 06:37:53 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 25C83106566C for ; Thu, 15 Dec 2011 06:37:53 +0000 (UTC) (envelope-from vijju.singh@gmail.com) Received: from mail-vw0-f54.google.com (mail-vw0-f54.google.com [209.85.212.54]) by mx1.freebsd.org (Postfix) with ESMTP id 9B69B8FC0A for ; Thu, 15 Dec 2011 06:37:52 +0000 (UTC) Received: by vbbfr13 with SMTP id fr13so2053429vbb.13 for ; Wed, 14 Dec 2011 22:37:51 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=mime-version:date:message-id:subject:from:to:content-type; bh=LBcFuePlX/903mi953UiT4GG2/Jp1uTm37wmgeN8lZA=; b=eNqZec8kbXv4A/DK7mXudZqHn/ch2G5rbsbFa/9YeYva3joiDIO8QcGbQ3mIJeNDG/ P77jO0iZ1L4Z03RrsJB10fzzT6SkHPsHMRo3Ie+mx1P5HX6ms9kYY8Nd9cAK0EPPvkWN kjxMoUUroE7XgTY/+9rTCRdzdY4mZbJQ1JB9I= MIME-Version: 1.0 Received: by 10.52.110.2 with SMTP id hw2mr1644979vdb.18.1323931071484; Wed, 14 Dec 2011 22:37:51 -0800 (PST) Received: by 10.220.108.144 with HTTP; Wed, 14 Dec 2011 22:37:51 -0800 (PST) Date: Wed, 14 Dec 2011 22:37:51 -0800 Message-ID: From: Vijay Singh To: freebsd-net@freebsd.org Content-Type: text/plain; charset=ISO-8859-1 Subject: LOR in FreeBSD 8.1 w/ IPv6 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: Thu, 15 Dec 2011 06:37:53 -0000 Hi, the following LOR is reported on my system: f6070c-01% lock order reversal: 1st 0xffffff00043c0c18 e5a:rx(0) (e5a:rx(0)) @ sys/dev/e1000/if_em.c:1607 2nd 0xffffffff80f10780 in6_multi_mtx (in6_multi_mtx) @ sys/netinet6/in6_var.h:734 KDB: stack backtrace: kdb_backtrace() at kdb_backtrace+0x3e witness_releaseok() at witness_releaseok+0x1934 witness_checkorder() at witness_checkorder+0xafc _mtx_lock_flags() at _mtx_lock_flags+0xef icmp6_input() at icmp6_input+0x15ed icmp6_input() at icmp6_input+0x292 ip6_input() at ip6_input+0x1156 netisr_dispatch_src() at netisr_dispatch_src+0x168 netisr_dispatch() at netisr_dispatch+0x20 ether_demux() at ether_demux+0x253 ether_ipfw_chk() at ether_ipfw_chk+0xb66 ether_ipfw_chk() at ether_ipfw_chk+0xbbd netisr_dispatch_src() at netisr_dispatch_src+0x168 netisr_dispatch() at netisr_dispatch+0x20 ether_ipfw_chk() at ether_ipfw_chk+0xc2d busdma_map_sg_vec() at busdma_map_sg_vec+0xa611 busdma_map_sg_vec() at busdma_map_sg_vec+0x2f58 taskqueue_unblock() at taskqueue_unblock+0x235 taskqueue_thread_loop() at taskqueue_thread_loop+0x73 fork_exit() at fork_exit+0x166 fork_trampoline() at fork_trampoline+0xe --- trap 0, rip = 0, rsp = 0xffffff8062691d30, rbp = 0 --- Is it known? -vijay