Bug#308072: marked as done (kernel-image-2.6.8-2-386: statfs returns wrong values for FAT fs)
Your message dated Wed, 11 May 2005 10:48:09 +0900
with message-id <20050511014807.GB1270@verge.net.au>
and subject line statfs returns wrong values for 250Gb FAT fs
has caused the attached Bug report to be marked as done.
This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.
(NB: If you are a system administrator and have no idea what I am
talking about this indicates a serious mail system misconfiguration
somewhere. Please contact me immediately.)
Debian bug tracking system administrator
(administrator, Debian Bugs database)
--------------------------------------
Received: (at submit) by bugs.debian.org; 7 May 2005 17:25:03 +0000
>From carlos.efr@mail.telepac.pt Sat May 07 10:25:03 2005
Return-path: <carlos.efr@mail.telepac.pt>
Received: from relay1.ptmail.sapo.pt (sapo.pt) [212.55.154.21]
by spohr.debian.org with smtp (Exim 3.35 1 (Debian))
id 1DUT31-0004gO-00; Sat, 07 May 2005 10:25:03 -0700
Received: (qmail 9949 invoked from network); 7 May 2005 17:24:30 -0000
Received: from unknown (HELO sapo.pt) (10.134.35.158)
by relay1 with SMTP; 7 May 2005 17:24:30 -0000
Received: (qmail 6497 invoked from network); 7 May 2005 17:24:30 -0000
X-AntiVirus: PTMail-AV 0.3.83
Received: from unknown (HELO localhost.localdomain) ([82.154.12.106])
(envelope-sender <carlos.efr@mail.telepac.pt>)
by mta8 (qmail-ldap-1.03) with SMTP
for <submit@bugs.debian.org>; 7 May 2005 17:24:30 -0000
Received: from carlos by localhost.localdomain with local (Exim 4.50)
id 1DUT2T-0000fm-Nx
for submit@bugs.debian.org; Sat, 07 May 2005 18:24:29 +0100
Content-Type: text/plain; charset="us-ascii"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
From: Carlos Rodrigues <carlos.efr@mail.telepac.pt>
To: Debian Bug Tracking System <submit@bugs.debian.org>
Subject: kernel-image-2.6.8-2-386: statfs returns wrong values for FAT fs
X-Mailer: reportbug 3.8
Date: Sat, 07 May 2005 18:24:29 +0100
Message-Id: <[🔎] E1DUT2T-0000fm-Nx@localhost.localdomain>
Delivered-To: submit@bugs.debian.org
X-Spam-Checker-Version: SpamAssassin 2.60-bugs.debian.org_2005_01_02
(1.212-2003-09-23-exp) on spohr.debian.org
X-Spam-Status: No, hits=-8.0 required=4.0 tests=BAYES_00,HAS_PACKAGE
autolearn=no version=2.60-bugs.debian.org_2005_01_02
X-Spam-Level:
Package: kernel-image-2.6.8-2-386
Version: 2.6.8-13
Severity: important
I have a 250Gb external USB 2.0 hard-drive formatted with FAT32 and "df"
always reports 64Kb of used space on it, although it contains a couple of
gigabytes.
At first I thought the problem might be in "df" itself, but the following
test code proves the statfs function is to blame. The values returned are
incorrect.
However, it does report correct values for another FAT32 partition I have
(70Gb).
----------- statfs.c -----------
#include <sys/vfs.h>
int main(int argc, char *argv[])
{
struct statfs stats;
long used;
int kib;
if (argc < 2) {
printf("USAGE: %s <mountpoint>\n", argv[0]);
return 1;
}
statfs(argv[1], &stats);
used = stats.f_blocks - stats.f_bfree;
printf("f_bsize = %ld blocks\nf_blocks = %ld blocks\nf_bfree = %ld blocks\nused = %ld blocks\n",
stats.f_bsize, stats.f_blocks, stats.f_bfree, used);
kib = stats.f_bsize / 1024;
printf("total = %ld KiB\nfree = %ld KiB\nused = %ld KiB\n",
kib * stats.f_blocks,
kib * stats.f_bfree,
kib * used);
return 0;
}
----------- eof - statfs.c -----------
-- System Information:
Debian Release: 3.1
APT prefers testing
APT policy: (500, 'testing')
Architecture: i386 (i686)
Kernel: Linux 2.6.8-2-386
Locale: LANG=en_US, LC_CTYPE=en_US (charmap=ISO-8859-1)
Versions of packages kernel-image-2.6.8-2-386 depends on:
ii coreutils [fileutils] 5.2.1-2 The GNU core utilities
ii initrd-tools 0.1.78 tools to create initrd image for p
ii module-init-tools 3.2-pre1-2 tools for managing Linux kernel mo
-- no debconf information
---------------------------------------
Received: (at 308072-done) by bugs.debian.org; 11 May 2005 01:50:13 +0000
>From horms@koto.vergenet.net Tue May 10 18:50:13 2005
Return-path: <horms@koto.vergenet.net>
Received: from koto.vergenet.net [210.128.90.7]
by spohr.debian.org with esmtp (Exim 3.35 1 (Debian))
id 1DVgMV-0003mZ-00; Tue, 10 May 2005 18:50:11 -0700
Received: by koto.vergenet.net (Postfix, from userid 7100)
id 3857634031; Wed, 11 May 2005 10:23:49 +0900 (JST)
Date: Wed, 11 May 2005 10:48:09 +0900
From: Horms <horms@verge.net.au>
To: Carlos Rodrigues <carlos.efr@mail.telepac.pt>
Cc: 308072-done@bugs.debian.org
Subject: Re: statfs returns wrong values for 250Gb FAT fs
Message-ID: <20050511014807.GB1270@verge.net.au>
References: <[🔎] E1DUT2T-0000fm-Nx@localhost.localdomain> <[🔎] 20050510080907.GR1998@verge.net.au> <[🔎] 87oebjxpcc.fsf@devron.myhome.or.jp> <[🔎] 42811AE6.7020902@mail.telepac.pt>
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <[🔎] 42811AE6.7020902@mail.telepac.pt>
X-Cluestick: seven
User-Agent: Mutt/1.5.6+20040907i
Delivered-To: 308072-done@bugs.debian.org
X-Spam-Checker-Version: SpamAssassin 2.60-bugs.debian.org_2005_01_02
(1.212-2003-09-23-exp) on spohr.debian.org
X-Spam-Status: No, hits=-3.0 required=4.0 tests=BAYES_00 autolearn=no
version=2.60-bugs.debian.org_2005_01_02
X-Spam-Level:
On Tue, May 10, 2005 at 09:34:46PM +0100, Carlos Rodrigues wrote:
> OGAWA Hirofumi wrote:
>
> >Filesystem may have the corrupted free-cluster value.
> >
> >I couldn't reproduce the problem on 2.6.12-rc4.
> >
> >Could you try a recently dosfsck (dosfstools-2.11 or later)?
> >Also could you send the output of above program?
> >
> >
>
> "dosfsck" did find a problem in the free-cluster value. And also said
> the backups FAT was different than the original FAT.
>
> I didn't use "dosfsck" to fix the problems though (not that it couldn't,
> I just didn't try). As I had already copied everything to another disk,
> I just used "mkdosfs" to reformat the drive, and it works just fine now.
>
> I still don't know what caused this, probably something related to some
> "kernel panics" I was seeing on shutdown (in a Fedora 3 installation,
> not Debian), after doing an umount+unplug.
>
> I didn't though of using "dosfsck" because Windows' checkdisk was saying
> the filesystem was perfectly fine... It makes me feel really safe
> trusting MS tools... not.
Glad to hear that worked, I am going to close this bug.
--
Horms
Reply to: