From owner-freebsd-arm@FreeBSD.ORG Thu May 20 12:23:25 2010 Return-Path: Delivered-To: freebsd-arm@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 17F1F1065670 for ; Thu, 20 May 2010 12:23:25 +0000 (UTC) (envelope-from Matthias.Reyelt@brunel.de) Received: from mailgate2.arcor-ip.de (mailgate2.arcor-ip.de [145.253.2.48]) by mx1.freebsd.org (Postfix) with ESMTP id 8E6CB8FC0A for ; Thu, 20 May 2010 12:23:24 +0000 (UTC) Received: from mailer.brunellocal.de (ffmcospub2ffmbrunelfw2lo-cs-nat-mail-server.adm.arcor.net [145.254.28.157]) by mailgate1.cs.arcor.net (Arcor-CN-MailRelay-l-B) with ESMTP id E5E19F9AEC8; Thu, 20 May 2010 14:23:22 +0200 (CEST) Received: from localhost (localhost [127.0.0.1]) by localhost (Postfix) with ESMTP id 7D20A4A64F; Thu, 20 May 2010 14:23:22 +0200 (CEST) X-Virus-Scanned: amavisd-new at brunellocal.de Received: from mailer.brunellocal.de ([127.0.0.1]) by localhost (mailer.brunellocal.de [127.0.0.1]) (amavisd-new, port 10024) with SMTP id 9MfA2gMD6eb3; Thu, 20 May 2010 14:23:22 +0200 (CEST) Received: from mail-hv.brunel.de (mail-hv.brunellocal.de [192.168.1.234]) by mailer.brunellocal.de (Postfix) with ESMTP id 5A31436D0C; Thu, 20 May 2010 14:23:22 +0200 (CEST) Received: from bcslx10.bcs.brunel.local ([172.16.101.231]) by 935s02su.brunellocal.de (Lotus Domino Release 7.0.4FP1) with ESMTP id 2010052014231915-14684 ; Thu, 20 May 2010 14:23:19 +0200 Received: from bcspc139.bcs.brunel.local (bcspc139.bcs.brunel.local [172.16.101.98]) by bcslx10.bcs.brunel.local (Postfix) with ESMTP id C027CFD9E6; Thu, 20 May 2010 14:23:19 +0200 (CEST) From: Matthias Reyelt Organization: Brunel Communications To: Rafal Jaworowski Date: Thu, 20 May 2010 14:23:15 +0200 User-Agent: KMail/1.9.6 (enterprise 20070904.708012) References: <201005190820.00413.Matthias.Reyelt@brunel.de> <9E1BDCD0-CBE1-46D8-AECC-AE9E277C86B7@semihalf.com> In-Reply-To: <9E1BDCD0-CBE1-46D8-AECC-AE9E277C86B7@semihalf.com> MIME-Version: 1.0 Message-Id: <201005201423.18112.Matthias.Reyelt@brunel.de> X-MIMETrack: Itemize by SMTP Server on HUB93501/Brunel/De(Release 7.0.4FP1|July 20, 2009) at 20.05.2010 02:23:19 PM, Serialize by Router on HUB10149/Brunel/De(Release 7.0.4FP1|July 20, 2009) at 20.05.2010 02:23:21 PM, Serialize complete at 20.05.2010 02:23:21 PM Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Content-Disposition: inline Cc: freebsd-arm@freebsd.org Subject: Re: files damaged on memory disk on Marvell Discovery 78100 X-BeenThere: freebsd-arm@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Porting FreeBSD to the StrongARM Processor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 20 May 2010 12:23:25 -0000 Hi, I have changed the mount options for the memory disks and they work fine no= w.=20 I also got rid of regular crashes of the board :-) Are there other caveats in the virtual cache area, things that should be=20 avoided on the Marvell ARM? Matthias=20 Am Mittwoch 19 Mai 2010 12:29:52 schrieb Rafal Jaworowski: >=20 > On 2010-05-19, at 08:19, Matthias Reyelt wrote: >=20 > > I have observed a strange behaviour on the Marvell Discovery: > >=20 > > I have a memory disk for /etc and /opt: > > /dev/md0 on /etc (ufs, local) > > /dev/md1 on /opt (ufs, local) > >=20 > > When I copy files to that disk, which are larger than 0x1ffff (131071=20 bytes),=20 > > these files differ from the original. This occurs only when copying to = md.=20 > >=20 > > Kernel is: > > FreeBSD discovery1 8.0-STABLE FreeBSD 8.0-STABLE #0 r206836: Mon Apr 19= =20 > > 12:53:42 CEST 2010 =20 > > root@vbcspc12.bcs.brunel.local:/usr/obj/arm/root/ARM/8/sys/DB-78XXX arm > >=20 > > I had a look into the damaged file and found some excerpts from files=20 located=20 > > in /etc (which is also in RAM): > > ------------------------------------------------------------ > > passwd: compat > > passwd_compat: nis > > shells: files > > ----------------------------------------------------------------- > > ... > > ----------------------------------------------------------------- > > staff:*:20: > > sshd:*:22: > > smmsp:*:25: > > mailnull:*:26: > > guest:*:3-=EF=BF=BD=EF=BF=BD=EF=BF=BD=0F > > ------------------------------------------------------------------ > >=20 > > Looks as if the CPU has problems accessing the RAM. I have already chan= ged=20 the=20 > > RAM, so I don't think it's a hardware problem.=20 > >=20 > > Any idea? >=20 >=20 > Try turning off clustering on the filesystem(s). There was least one know= n=20 problem in this area leading to cache incoherency, see this thread for more= =20 details (and how-to):=20 http://lists.freebsd.org/pipermail/freebsd-arm/2008-December/001423.html >=20 > Rafal >=20 >=20 =2D-=20 Dr.-Ing. Matthias Reyelt Master Software Designer Brunel GmbH Bereich Communications Daimlerring 9 31135 Hildesheim Tel: +49 5121 1760 805 =46ax: +49 5121 1760 999 email: Matthias.Reyelt@brunel.de Internet: www.brunel.de Hauptsitz: Airport City, Hermann-K=C3=B6hl-Str. 1, 28199 Bremen Amtsgericht Bremen HRB 16935 General Manager: Johan Arie van Barneveld