From owner-freebsd-stable@FreeBSD.ORG Thu Jun 30 13:56:19 2005 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 A242016A41C for ; Thu, 30 Jun 2005 13:56:19 +0000 (GMT) (envelope-from ronald-freebsd8@klop.yi.org) Received: from hnexfe07.hetnet.nl (hnexfe07.hetnet.nl [195.121.6.173]) by mx1.FreeBSD.org (Postfix) with ESMTP id 30A8643D48 for ; Thu, 30 Jun 2005 13:56:18 +0000 (GMT) (envelope-from ronald-freebsd8@klop.yi.org) Received: from laptop.klop.ws ([80.60.206.14]) by hnexfe07.hetnet.nl with Microsoft SMTPSVC(5.0.2195.6874); Thu, 30 Jun 2005 15:56:16 +0200 Received: (qmail 6518 invoked from network); 30 Jun 2005 13:56:15 -0000 Received: from speedtouch.lan (HELO localhost) (127.0.0.1) by speedtouch.lan with SMTP; 30 Jun 2005 13:56:15 -0000 To: "Jorn Argelo" , JM References: <200506291704.50185.ndenev@icdsoft.com> <059901c57cb4$9a366220$7f06000a@int.mediasurface.com> <20050630060612.GF1074@green.homeunix.org> <42C3F7F3.809@speakeasy.net> <42C3F8A9.7030705@wcborstel.nl> Message-ID: Date: Thu, 30 Jun 2005 15:56:13 +0200 From: "Ronald Klop" Content-Type: text/plain; format=flowed; delsp=yes; charset=us-ascii MIME-Version: 1.0 Content-Transfer-Encoding: 8bit In-Reply-To: <42C3F8A9.7030705@wcborstel.nl> User-Agent: Opera M2/8.01 (FreeBSD, build 1204) X-OriginalArrivalTime: 30 Jun 2005 13:56:16.0425 (UTC) FILETIME=[7BF85990:01C57D7B] Cc: Brian Fundakowski Feldman , Steven Hartland , freebsd-stable@freebsd.org, Niki Denev Subject: Re: background fsck can be dangerous! 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, 30 Jun 2005 13:56:19 -0000 On Thu, 30 Jun 2005 15:50:33 +0200, Jorn Argelo wrote: > JM wrote: > >> Brian Fundakowski Feldman wrote: >> >>> On Wed, Jun 29, 2005 at 03:12:37PM +0100, Steven Hartland wrote: >>> >>>> I've not had a single crash / power outage that background fsck has >>>> been able to deal with. 90% of the time the machine will fail to even >>>> boot to single user mode :( >>>> >>> >>> >>> You should turn write caching off on your drives. >>> >> and in addition to that... you can enable a foreground fsck at boot >> which might be the better option if boot times aren't an issue. > > > May I ask how I can do that? Because I've always prefered foreground > fsck then background fsck to be honest. At least you can see what the > machine is doing. See background_fsck in rc.conf. See also the text below. :-) ronald. > > Jorn > >> >>> >>>> Steve >>>> ----- Original Message ----- From: "Niki Denev" >>>> >>>> >>>>> I want just to share my last experience with the combination of >>>>> power failure + background fsck. After the power returned and the >>>>> machine booted, it sheduled background fsck after 60 seconds, but >>>>> at this point most of the services were already started, and some of >>>>> them seemed to rely on files that were probably in unclean state >>>>> before the check. >>>>> This unfortunately leaded to some lost email...after the fsck >>>>> completed, >>>>> everything runs ok, but i have now set background_fsck to NO in >>>>> rc.conf. >>>>> >>>>> Here is a sad sample from my qmail log file : >>>>> @4000000042c1badc24fc21cc delivery 1: success: >>>>> /libexec/ld-elf.so.1:_Shared_object_"libpq.so.3"_not_found,_required_by_"dspam"/did_0+0+1/ >>>>> @4000000042c1badc24fff25c status: local 2/30 remote 0/20 >>>>> @4000000042c1badc250151ec delivery 4: success: >>>>> /libexec/ld-elf.so.1:_Shared_object_"libpq.so.3"_not_found,_required_by_"dspam"/did_0+0+1/ >>>>> @4000000042c1badc2502bd34 status: local 1/30 remote 0/20 >>>>> @4000000042c1badc25050ef4 end msg 23982 >>>>> @4000000042c1badc2508b0a4 delivery 2: success: >>>>> /libexec/ld-elf.so.1:_Shared_object_"libpq.so.3"_not_found,_required_by_"dspam"/did_0+0+1/ >>>>> @4000000042c1badc250a9cd4 status: local 0/30 remote 0/20 >>>>> @4000000042c1badc250c7d4c end msg 24087 >>>>> @4000000042c1badc2510942c end msg 24040 >>>>> >>>> >>> >>> The filesystem looks the same before, during, and after background >>> fsck runs, other than the free space information. >>> >>> >> >> _______________________________________________ >> freebsd-stable@freebsd.org mailing list >> http://lists.freebsd.org/mailman/listinfo/freebsd-stable >> To unsubscribe, send any mail to >> "freebsd-stable-unsubscribe@freebsd.org" > > > _______________________________________________ > freebsd-stable@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-stable > To unsubscribe, send any mail to "freebsd-stable-unsubscribe@freebsd.org" -- Ronald Klop Amsterdam, The Netherlands