From owner-freebsd-stable@freebsd.org  Wed Feb  1 12:51:05 2017
Return-Path: <owner-freebsd-stable@freebsd.org>
Delivered-To: freebsd-stable@mailman.ysv.freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org
 [IPv6:2001:1900:2254:206a::19:1])
 by mailman.ysv.freebsd.org (Postfix) with ESMTP id E4CADCCB63E
 for <freebsd-stable@mailman.ysv.freebsd.org>;
 Wed,  1 Feb 2017 12:51:05 +0000 (UTC)
 (envelope-from kostikbel@gmail.com)
Received: from kib.kiev.ua (kib.kiev.ua [IPv6:2001:470:d5e7:1::1])
 (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits))
 (Client did not present a certificate)
 by mx1.freebsd.org (Postfix) with ESMTPS id 7C231160C
 for <freebsd-stable@freebsd.org>; Wed,  1 Feb 2017 12:51:05 +0000 (UTC)
 (envelope-from kostikbel@gmail.com)
Received: from tom.home (kib@localhost [127.0.0.1])
 by kib.kiev.ua (8.15.2/8.15.2) with ESMTPS id v11CoxAO049165
 (version=TLSv1.2 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO);
 Wed, 1 Feb 2017 14:50:59 +0200 (EET)
 (envelope-from kostikbel@gmail.com)
DKIM-Filter: OpenDKIM Filter v2.10.3 kib.kiev.ua v11CoxAO049165
Received: (from kostik@localhost)
 by tom.home (8.15.2/8.15.2/Submit) id v11Coxrn049164;
 Wed, 1 Feb 2017 14:50:59 +0200 (EET)
 (envelope-from kostikbel@gmail.com)
X-Authentication-Warning: tom.home: kostik set sender to kostikbel@gmail.com
 using -f
Date: Wed, 1 Feb 2017 14:50:59 +0200
From: Konstantin Belousov <kostikbel@gmail.com>
To: Jakub Lach <jakub_lach@mailplus.pl>
Cc: freebsd-stable@freebsd.org
Subject: Re: FreeBSD 11.0-STABLE #0 r310265 amd64 seems to be cpi-ing garbage
 to mounted FAT32 fs after 10-20 GB.
Message-ID: <20170201125059.GB3018@kib.kiev.ua>
References: <1483038391207-6154963.post@n6.nabble.com>
 <op.yuzc2cebkndu52@53556c9c.cm-6-6b.dynamic.ziggo.nl>
 <1485952687570-6164655.post@n6.nabble.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <1485952687570-6164655.post@n6.nabble.com>
User-Agent: Mutt/1.7.2 (2016-11-26)
X-Spam-Status: No, score=-2.0 required=5.0 tests=ALL_TRUSTED,BAYES_00,
 DKIM_ADSP_CUSTOM_MED,FREEMAIL_FROM,NML_ADSP_CUSTOM_MED autolearn=no
 autolearn_force=no version=3.4.1
X-Spam-Checker-Version: SpamAssassin 3.4.1 (2015-04-28) on tom.home
X-BeenThere: freebsd-stable@freebsd.org
X-Mailman-Version: 2.1.23
Precedence: list
List-Id: Production branch of FreeBSD source code <freebsd-stable.freebsd.org>
List-Unsubscribe: <https://lists.freebsd.org/mailman/options/freebsd-stable>, 
 <mailto:freebsd-stable-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-stable/>
List-Post: <mailto:freebsd-stable@freebsd.org>
List-Help: <mailto:freebsd-stable-request@freebsd.org?subject=help>
List-Subscribe: <https://lists.freebsd.org/mailman/listinfo/freebsd-stable>,
 <mailto:freebsd-stable-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Wed, 01 Feb 2017 12:51:06 -0000

On Wed, Feb 01, 2017 at 05:38:07AM -0700, Jakub Lach wrote:
> As it shows your interest, I appreciate your answer very much.
> 
> I was a bit let down then, I had to (using the same card reader), 
> cp -r using borrowed Apple iMac. It worked as it should.
> 
> It was FreeBSD 11.0-STABLE #0 r310265 amd64 as in subject, 
> I will reconsider retesting now and filling a PR, with a different
> data set and medium though. Thanks.

Does that happen on any device which carries FAT fs, or since you mentioned
a card reader, does it happen with any other filesystem carried by a volume
on the card ?  In other words, why do you blame FAT and not the card reader ?