From owner-freebsd-stable@FreeBSD.ORG Fri Dec 12 19:54:36 2008 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 2C234106568C for ; Fri, 12 Dec 2008 19:54:36 +0000 (UTC) (envelope-from ghelmer@palisadesys.com) Received: from cetus.palisadesys.com (cetus.palisadesys.com [205.237.115.21]) by mx1.freebsd.org (Postfix) with ESMTP id C59398FC2E for ; Fri, 12 Dec 2008 19:54:35 +0000 (UTC) (envelope-from ghelmer@palisadesys.com) Received: from magellan.palisadesys.com (serverwatch [172.16.1.98]) by cetus.palisadesys.com (8.14.1/8.14.1) with ESMTP id mBCJsYxA068606; Fri, 12 Dec 2008 13:54:34 -0600 (CST) (envelope-from ghelmer@palisadesys.com) Received: from [172.16.2.242] (cetus.palisadesys.com [205.237.115.21]) (authenticated bits=0) by magellan.palisadesys.com (8.14.2/8.14.2) with ESMTP id mBCJsW6l001273; Fri, 12 Dec 2008 13:54:32 -0600 (CST) (envelope-from ghelmer@palisadesys.com) Message-ID: <4942C178.2030206@palisadesys.com> Date: Fri, 12 Dec 2008 13:54:32 -0600 From: Guy Helmer User-Agent: Thunderbird 2.0.0.18 (Windows/20081105) MIME-Version: 1.0 To: "Paul B. Mahol" References: <49419BE0.2070502@palisadesys.com> <3a142e750812111900u1d9264bh27d39092f5dcc4bf@mail.gmail.com> <49426880.40302@palisadesys.com> <3a142e750812120729v478d850do93e31e5d8502ef68@mail.gmail.com> In-Reply-To: <3a142e750812120729v478d850do93e31e5d8502ef68@mail.gmail.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Greylist: Sender succeeded SMTP AUTH authentication, not delayed by milter-greylist-3.0 (magellan.palisadesys.com [205.237.115.20]); Fri, 12 Dec 2008 13:54:32 -0600 (CST) X-Palisade-MailScanner-Information: Please contact the ISP for more information X-Palisade-MailScanner: Found to be clean X-Palisade-MailScanner-SpamCheck: not spam (whitelisted), SpamAssassin (not cached, score=-4.399, required 6, autolearn=not spam, ALL_TRUSTED -1.80, BAYES_00 -2.60) X-Palisade-MailScanner-From: ghelmer@palisadesys.com Cc: freebsd-stable@freebsd.org Subject: Re: 7.1RC1: system hang 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: Fri, 12 Dec 2008 19:54:38 -0000 Paul B. Mahol wrote: > On 12/12/08, Guy Helmer wrote: > >> Paul B. Mahol wrote: >> >>> On 12/12/08, Guy Helmer wrote: >>> >>> >>>> I have a recurring hang on FreeBSD 7.1 roughly-RC1 (releng_7_1 checkout >>>> as of 2008-12-08) on a dual-CPU hyperthreaded Xeon i386. I've dropped >>>> into the kernel debugger on the VGA console and transcribed the >>>> following information (if I omit anything critical, let me know -- the >>>> machine is still sitting at the debugger prompt) : >>>> >>>> > where >>>> pid 20 tid 100018 td 0xc45008c0 >>>> kdb_enter_why >>>> scgetc >>>> sckdbevent >>>> kdbmux_intr >>>> kdbmux_kdb_intr >>>> taskqueue_run >>>> taskqueue_swi_giant_run >>>> ithread_loop >>>> fork_exit(c063cce0, c44ac590, e4a36d38) at 0xc063a624 = fork_exit+0x94 >>>> fork_trampoline() at 0xc07e41a0 = fork_trampoline+0x8 >>>> >>>> > show allpcpu >>>> cpuid 0 in idle >>>> cpuid 1: proc 23457 >>>> cpuid 2: idle >>>> cpuid 3: swi6 proc 20 >>>> >>>> >>> what is proc 23457? >>> >>> >> proc 23457 is "filter", an Autonomy KeyView Filter API program (extracts >> text out of various document formats) that is being run using FreeBSD 6 >> compatibility libraries. >> >> Guy >> >> >> > > Could you give most interesting part of "ps" output. > I've hooked up a serial console and I'll wait for the problem to occur again to to get the "ps" output -- there's about 70 active processes on the system, and transcribing from the VGA console is taking forever... Guy