From owner-freebsd-stable@FreeBSD.ORG Tue Oct 28 14:36:42 2014 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 19CEA4E7; Tue, 28 Oct 2014 14:36:42 +0000 (UTC) Received: from mail.server1.bsdforen.de (bsdforen.de [82.193.243.81]) by mx1.freebsd.org (Postfix) with ESMTP id CD5113A0; Tue, 28 Oct 2014 14:36:41 +0000 (UTC) Received: from AprilRyan.norad (iz-aix-213a.HS-Karlsruhe.DE [193.196.64.213]) (using TLSv1 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by mail.server1.bsdforen.de (Postfix) with ESMTPSA id B28DB860F2; Tue, 28 Oct 2014 15:36:40 +0100 (CET) Message-ID: <544FA9F4.1040309@bsdforen.de> Date: Tue, 28 Oct 2014 15:36:36 +0100 From: Dominic Fandrey User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:31.0) Gecko/20100101 Thunderbird/31.2.0 MIME-Version: 1.0 To: Ian Lepore , Ronald Klop Subject: Re: File system issues References: <544BC863.2040607@bsdforen.de> <20141025183600.GG66862@home.opsec.eu> <544C0DA3.1060201@bsdforen.de> <1414418314.17308.2.camel@revolution.hippie.lan> In-Reply-To: <1414418314.17308.2.camel@revolution.hippie.lan> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: freebsd-stable@freebsd.org X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 28 Oct 2014 14:36:42 -0000 On 27/10/2014 14:58, Ian Lepore wrote: > On Mon, 2014-10-27 at 09:49 +0100, Ronald Klop wrote: >> On Sat, 25 Oct 2014 22:52:51 +0200, Dominic Fandrey >> wrote: >> >>> On 25/10/2014 20:36, Kurt Jaeger wrote: >>>> Hi! >>>> >>>>> Two or 3 days ago, after an update to stable/10 my UFS file system >>>>> started acting weird. I have freezes and files disappearing from the >>>>> system. >>>>> >>>>> The first time that happened SU+J failed me. >>>> >>>> I always disable journaling >>> >>> I think that's just a symptom here. The issue is stuff mysteriously >>> disappearing from my file system on a running system. >>> >>> >> >> Hi, >> >> Weird stuff. If you read the following mail thread there is a confirmed >> problem with fsck on ARM systems with disappearing files. >> http://lists.freebsd.org/pipermail/freebsd-arm/2014-September/009168.html >> It also states that the same problem does not occur on other platforms >> (and I can fsck my ARM systems usb-stick on a amd64 system successfully), >> but I thought it is worth mentioning. >> > > It seems unlikely to be related, but it would be easy to test: > > mdconfig -a -t malloc -s 64m > # assume that created unit 0 > newfs /dev/md0 > fsck -t ffs /dev/md0 > > If that reports errors, you've got the problem. If it doesn't, it's > some other problem. So far the problem exposed by the sequence above > happens only on one specific type of old low-end arm system; it hasn't > yet been reproduced on even other arm systems, let alone other arches. Thanks, I ran it and I didn't get any errors. By now I decided to implement desperate measures. dump -0;newfs;restore No more problems so far. I didn't have the spare space to make a complete FS image. :( So whatever the cause, it will remain undiscovered. Regards -- A: Because it fouls the order in which people normally read text. Q: Why is top-posting such a bad thing? A: Top-posting. Q: What is the most annoying thing on usenet and in e-mail?