From owner-freebsd-current@FreeBSD.ORG Tue Jan 5 13:44:31 2010 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 88A24106566C for ; Tue, 5 Jan 2010 13:44:31 +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 599EB8FC12 for ; Tue, 5 Jan 2010 13:44:31 +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 09D6F46B23; Tue, 5 Jan 2010 08:44:31 -0500 (EST) Received: from jhbbsd.localnet (unknown [209.249.190.9]) by bigwig.baldwin.cx (Postfix) with ESMTPA id 17A028A025; Tue, 5 Jan 2010 08:44:30 -0500 (EST) From: John Baldwin To: freebsd-current@freebsd.org Date: Tue, 5 Jan 2010 08:28:49 -0500 User-Agent: KMail/1.12.1 (FreeBSD/7.2-CBSD-20091103; KDE/4.3.1; amd64; ; ) References: <20100105060748.GA16239@stlux503.dsto.defence.gov.au> In-Reply-To: <20100105060748.GA16239@stlux503.dsto.defence.gov.au> MIME-Version: 1.0 Content-Type: Text/Plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Message-Id: <201001050828.49809.jhb@freebsd.org> X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.0.1 (bigwig.baldwin.cx); Tue, 05 Jan 2010 08:44:30 -0500 (EST) X-Virus-Scanned: clamav-milter 0.95.1 at bigwig.baldwin.cx X-Virus-Status: Clean X-Spam-Status: No, score=-2.5 required=4.2 tests=AWL,BAYES_00,RDNS_NONE autolearn=no version=3.2.5 X-Spam-Checker-Version: SpamAssassin 3.2.5 (2008-06-10) on bigwig.baldwin.cx Cc: "Wilkinson, Alex" Subject: Re: Fatal trap 12: page fault while in kernel mode [SEC=UNCLASSIFIED] X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 05 Jan 2010 13:44:31 -0000 On Tuesday 05 January 2010 1:07:48 am Wilkinson, Alex wrote: > This seems to be happening often to me :( > > FreeBSD 9.0-CURRENT #2 r200661: Fri Dec 18 > > Kernel page fault with the following non-sleepable locks held: > exclusive sleep mutex vm page queue free mutex (vm page queue free mutex) r = 0 > (0xc0f65280) locked @ /usr/src/sys/vm/vm_page.c:1052 > exclusive sleep mutex vm object (standard object) r = 0 (0xc207bee0) locked @ > /usr/src/sys/vm/vm_fault.c:269 > > KDB: stack backtrace: > db_trace_self_wrapper(c0c94824,e8986954,c08ceab5,c0cba8a5,10d,...) at > db_trace_self_wrapper+0x26 > kdb_backtrace(c0cba8a5,10d,ffffffff,c0f2bbfc,e898698c,...) at kdb_backtrace+0x29 > _witness_debugger(c0c96cd9,e89869a0,4,1,0,...) at _witness_debugger+0x25 > witness_warn(5,0,c0ccb229,c0df122c,c69e6d48,...) at witness_warn+0x1fd > trap(e8986a2c) at trap+0x19e > calltrap() at calltrap+0x6 > --- trap 0xc, eip = 0xc0afd732, esp = 0xe8986a6c, ebp = 0xe8986ac0 --- > vm_reserv_alloc_page(c207bee0,58a5,0,37e,c207bee0,...) at > vm_reserv_alloc_page+0x102 > vm_page_alloc(c207bee0,58a5,0,40,e8986c0c,...) at vm_page_alloc+0x25e > vm_fault(c684c1d0,2e129000,2,0,2e129000,...) at vm_fault+0x575 > trap_pfault(5,0,c0ccb229,2f0,c69e6d48,...) at trap_pfault+0x10d > trap(e8986d38) at trap+0x2d0 > calltrap() at calltrap+0x6 > --- trap 0xc, eip = 0x2834ecba, esp = 0xbfbfe454, ebp = 0xbfbfe468 --- Are you able to get a crashdump and examine it with kgdb? -- John Baldwin