From owner-freebsd-stable@FreeBSD.ORG Thu Jun 30 13:50:44 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 142E716A464; Thu, 30 Jun 2005 13:50:44 +0000 (GMT) (envelope-from jorn@wcborstel.nl) Received: from post-24.mail.nl.demon.net (post-24.mail.nl.demon.net [194.159.73.194]) by mx1.FreeBSD.org (Postfix) with ESMTP id 575FA43D55; Thu, 30 Jun 2005 13:50:43 +0000 (GMT) (envelope-from jorn@wcborstel.nl) Received: from wcborstel.demon.nl ([82.161.134.53]:19892 helo=[192.168.1.4]) by post-24.mail.nl.demon.net with esmtp (Exim 4.43) id 1DnzRB-000NTo-Jz; Thu, 30 Jun 2005 13:50:41 +0000 Message-ID: <42C3F8A9.7030705@wcborstel.nl> Date: Thu, 30 Jun 2005 15:50:33 +0200 From: Jorn Argelo User-Agent: Mozilla Thunderbird 1.0.2 (Windows/20050317) X-Accept-Language: en-us, en MIME-Version: 1.0 To: JM References: <200506291704.50185.ndenev@icdsoft.com> <059901c57cb4$9a366220$7f06000a@int.mediasurface.com> <20050630060612.GF1074@green.homeunix.org> <42C3F7F3.809@speakeasy.net> In-Reply-To: <42C3F7F3.809@speakeasy.net> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit 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 13:50:44 -0000 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. 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"