From owner-freebsd-stable@FreeBSD.ORG Wed Sep 1 16:06:28 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 5FD3710656D8 for ; Wed, 1 Sep 2010 16:06:28 +0000 (UTC) (envelope-from jhb@freebsd.org) Received: from cyrus.watson.org (cyrus.watson.org [65.122.17.42]) by mx1.freebsd.org (Postfix) with ESMTP id 2ED998FC2D for ; Wed, 1 Sep 2010 16:06:28 +0000 (UTC) Received: from bigwig.baldwin.cx (66.111.2.69.static.nyinternet.net [66.111.2.69]) by cyrus.watson.org (Postfix) with ESMTPSA id B128246B2A; Wed, 1 Sep 2010 12:06:27 -0400 (EDT) Received: from jhbbsd.localnet (smtp.hudson-trading.com [209.249.190.9]) by bigwig.baldwin.cx (Postfix) with ESMTPSA id DFD018A03C; Wed, 1 Sep 2010 12:06:26 -0400 (EDT) From: John Baldwin To: freebsd-stable@freebsd.org Date: Wed, 1 Sep 2010 12:06:15 -0400 User-Agent: KMail/1.13.5 (FreeBSD/7.3-CBSD-20100819; KDE/4.4.5; amd64; ; ) References: In-Reply-To: MIME-Version: 1.0 Content-Type: Text/Plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Message-Id: <201009011206.15494.jhb@freebsd.org> X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.0.1 (bigwig.baldwin.cx); Wed, 01 Sep 2010 12:06:26 -0400 (EDT) X-Virus-Scanned: clamav-milter 0.95.1 at bigwig.baldwin.cx X-Virus-Status: Clean X-Spam-Status: No, score=-2.6 required=4.2 tests=AWL,BAYES_00 autolearn=ham version=3.2.5 X-Spam-Checker-Version: SpamAssassin 3.2.5 (2008-06-10) on bigwig.baldwin.cx Cc: pluknet Subject: Re: page fault in e1000_clear_hw_cntrs_base_generic() during SIOCAIFADDR 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: Wed, 01 Sep 2010 16:06:28 -0000 On Wednesday, September 01, 2010 11:53:09 am pluknet wrote: > Hi. > > This is reproducible from time to time on boot when > handling SIOCAIFADDR called from ifconfig on igb > on fresh (and not so fresh) 8-STABLE. > > How can I help with debugging? > > Kernel page fault with the following non-sleepable locks held: > exclusive sleep mutex igb0 (IGB Core Lock) r = 0 (0xc2655534) locked @ > /usr/src/sys/modules/igb/../../dev/e1000/if_igb.c:965 > KDB: stack backtrace: > db_trace_self_wrapper(c08b5055,cce577b8,c060db15,3c5,0,...) at > db_trace_self_wrapper+0x26 > kdb_backtrace(3c5,0,ffffffff,c0a94864,cce577f0,...) at kdb_backtrace+0x29 > _witness_debugger(c08b74fe,cce57804,4,1,0,...) at _witness_debugger+0x25 > witness_warn(5,0,c08e3140,cce5782c,c2956000,...) at witness_warn+0x1fe > trap(cce57890) at trap+0x195 > calltrap() at calltrap+0x6 > --- trap 0xc, eip = 0xc3192477, esp = 0xcce578d0, ebp = 0xcce578e0 --- > e1000_clear_hw_cntrs_base_generic(c2651004,64,c3185850,c2651000,0,...) > at e1000_clear_hw_cntrs_base_generic+0x3e7 Can you use gdb on your kernel.debug to map this to a source file and line? -- John Baldwin