From owner-freebsd-stable@FreeBSD.ORG Thu Apr 22 09:58:30 2010 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 4D015106566C; Thu, 22 Apr 2010 09:58:30 +0000 (UTC) (envelope-from pluknet@gmail.com) Received: from mail-bw0-f228.google.com (mail-bw0-f228.google.com [209.85.218.228]) by mx1.freebsd.org (Postfix) with ESMTP id 96A848FC16; Thu, 22 Apr 2010 09:58:29 +0000 (UTC) Received: by bwz28 with SMTP id 28so9368439bwz.14 for ; Thu, 22 Apr 2010 02:58:28 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:in-reply-to:references :date:received:message-id:subject:from:to:cc:content-type :content-transfer-encoding; bh=2bcMUWg71eHftdDft7idQtrqrK+1jtjvpKVG+i//Fg8=; b=KLnDETLTFsCl30ZQyiwrgtF+bllig3Mt0Q9m5c+HyNNcKvURIib1KgFhjaKdb0WBTq /zDsUGziBB3GHivwNPbpaNURFP0y3jk+sXDArQ/YnfLYUc0Lgdpv+mMnoXamp+NxR4zS RbUDyeg2Y7coqQ9zlGm+VfzIpjnLj0q2zXrL0= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type:content-transfer-encoding; b=C0hvIxlI3TANyMVJvzy6P8t8na2qATjgfJmh+TJqMncC/caYRijneXKyNsbxGXSknA TjjEeJl6fOO790lnqWVr51STMkbcN/6jYBBWmSmM1/FA3eKTNaBfCxIttzJu86HRkEFg H4Xy12yB2vFxZfWz/Knec2nebkJbVOOsq2iIc= MIME-Version: 1.0 Received: by 10.204.79.3 with HTTP; Thu, 22 Apr 2010 02:58:24 -0700 (PDT) In-Reply-To: References: <4BC82B80.3070108@omnilan.de> <20100416092803.GA17526@icarus.home.lan> <4BC82FF7.1030700@omnilan.de> <201004160822.09359.jhb@freebsd.org> <4BC8A76A.6000107@omnilan.de> <4BC8CB9E.8060802@omnilan.de> Date: Thu, 22 Apr 2010 13:58:24 +0400 Received: by 10.204.161.197 with SMTP id s5mr8158195bkx.90.1271930304668; Thu, 22 Apr 2010 02:58:24 -0700 (PDT) Message-ID: From: pluknet To: Jack Vogel Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Cc: Brandon Gooch , Harald Schmalzbauer , freebsd-stable@freebsd.org, John Baldwin , Jeremy Chadwick Subject: Re: em JumboFrame improovement and PCIe addon-card regression [Was: Re: em regression, UDP LOR followed by ssh stall] X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 22 Apr 2010 09:58:30 -0000 On 17 April 2010 00:53, Jack Vogel wrote: > Why are you using ZERO_COPY_SOCKETS? =A0And is this LOR happening on STAB= LE or > CURRENT? > I got exactly this and another similar LORs with GENERIC on head. The second: login: lock order reversal: 1st 0xffffff0002539a18 em0:rx(0) (em0:rx(0)) @ /home/svn/freebsd/head/sys/dev/e1000/if_em.c:1452 2nd 0xffffffff80e3a280 in_multi_mtx (in_multi_mtx) @ /home/svn/freebsd/head/sys/netinet/igmp.c:823 KDB: stack backtrace: db_trace_self_wrapper() at db_trace_self_wrapper+0x2a _witness_debugger() at _witness_debugger+0x2e witness_checkorder() at witness_checkorder+0x81e _mtx_lock_flags() at _mtx_lock_flags+0x78 igmp_input() at igmp_input+0x4ce ip_input() at ip_input+0xbc netisr_dispatch_src() at netisr_dispatch_src+0xb8 ether_demux() at ether_demux+0x17d ether_input() at ether_input+0x175 em_rxeof() at em_rxeof+0x165 em_handle_que() at em_handle_que+0x68 taskqueue_run() at taskqueue_run+0x91 taskqueue_thread_loop() at taskqueue_thread_loop+0x3f fork_exit() at fork_exit+0x12a fork_trampoline() at fork_trampoline+0xe --- trap 0, rip =3D 0, rsp =3D 0xffffff80000bed30, rbp =3D 0 --- --=20 wbr, pluknet