From owner-freebsd-stable@FreeBSD.ORG Wed Sep 6 23:34:40 2006 Return-Path: X-Original-To: freebsd-stable@freebsd.org Delivered-To: freebsd-stable@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 4B0AE16A4E2 for ; Wed, 6 Sep 2006 23:34:40 +0000 (UTC) (envelope-from volker@vwsoft.com) Received: from frontmail.ipactive.de (frontmail.ipactive.de [85.214.39.229]) by mx1.FreeBSD.org (Postfix) with ESMTP id 0D5BB43D6B for ; Wed, 6 Sep 2006 23:34:31 +0000 (GMT) (envelope-from volker@vwsoft.com) Received: from mail.vtec.ipme.de (gprs-pool-1-013.eplus-online.de [212.23.126.13]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by frontmail.ipactive.de (Postfix) with ESMTP id E4BAF33D21 for ; Thu, 7 Sep 2006 01:34:23 +0200 (CEST) Received: from [127.0.0.1] (cesar.sz.vwsoft.com [192.168.16.3]) by mail.vtec.ipme.de (Postfix) with ESMTP id 7CB622E54F for ; Thu, 7 Sep 2006 01:34:05 +0200 (CEST) Message-ID: <44FF5B02.3090804@vwsoft.com> Date: Thu, 07 Sep 2006 01:34:26 +0200 From: Volker User-Agent: Thunderbird 1.5.0.5 (Windows/20060719) MIME-Version: 1.0 To: freebsd-stable@freebsd.org References: <44FF4909.9020108@vwsoft.com> In-Reply-To: <44FF4909.9020108@vwsoft.com> X-Enigmail-Version: 0.94.0.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-VWSoft-MailScanner: Found to be clean X-MailScanner-From: volker@vwsoft.com X-ipactive-MailScanner-Information: Please contact the ISP for more information X-ipactive-MailScanner: Found to be clean X-ipactive-MailScanner-From: volker@vwsoft.com Subject: Re: gmirror RAID-1: rebuilding freezes machine 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, 06 Sep 2006 23:34:40 -0000 On 2006-09-07 00:17, Volker wrote: > ... > The only way out of this machine freeze is to startup into su-mode, > deactivate/remove some gmirror providers and run in degraded mode > all time. > > The machine also does freeze in su-mode as soon as I'm manually > trying to re-sync the mirror. So I think I've made sure it's really > a gmirror problem. > ... > I'll now go on and rebuild kernel (already done) + world with > freshly csup'ed sources, reboot and test once more if gmirror > freezes again (will take an hour). talking to myself... I hate that ;) ok, I've now finished rebuilding world + kernel, installed everything and tried again. In single user mode, the machine does not freeze anymore while trying to rebuild the (any) container. But the rebuild process hangs forever at 0% without any noticeable disk activity. When going into multiuser mode with an auto re-syncing provider, the machine is hanging just right after the the message 'rebuilding provider gm0sN'. But I was able to cancel this by CTRL+C and was back into su mode again. I'll run in degraded mode for the next few hours but I'm now quite sure there's an issue with gmirror. What kind of debugging features may I turn on with gmirror to get a verbose output of what gmirror does? Greetings, Volker