From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from pigeon.gentoo.org ([208.92.234.80] helo=lists.gentoo.org) by finch.gentoo.org with esmtp (Exim 4.60) (envelope-from ) id 1NIgrE-0002xq-U5 for garchives@archives.gentoo.org; Thu, 10 Dec 2009 11:06:53 +0000 Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id C9C11E041F; Thu, 10 Dec 2009 11:05:51 +0000 (UTC) Received: from sentinel.math.Princeton.EDU (sentinel.math.Princeton.EDU [128.112.16.31]) by pigeon.gentoo.org (Postfix) with ESMTP id B0593E041F for ; Thu, 10 Dec 2009 11:05:51 +0000 (UTC) Received: from math.princeton.edu ([128.112.18.16] helo=sep.dynalias.net) by sentinel.math.Princeton.EDU with esmtpsa (TLSv1:AES256-SHA:256) (Exim 4.69) (envelope-from ) id 1NIgqE-0005qG-N6 for gentoo-user@lists.gentoo.org; Thu, 10 Dec 2009 06:05:51 -0500 Received: by sep.dynalias.net (Postfix, from userid 1001) id 36C8A589B42; Thu, 10 Dec 2009 06:09:26 -0500 (EST) Date: Thu, 10 Dec 2009 06:09:26 -0500 From: Willie Wong To: gentoo-user@lists.gentoo.org Subject: Re: [gentoo-user] 2.6.31 vfat driver broken? Message-ID: <20091210110926.GA113@princeton.edu> Mail-Followup-To: gentoo-user@lists.gentoo.org References: <200912092317.41998.Warp_7@gmx.de> Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Gentoo Linux mail X-BeenThere: gentoo-user@lists.gentoo.org Reply-to: gentoo-user@lists.gentoo.org MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <200912092317.41998.Warp_7@gmx.de> User-Agent: Mutt/1.5.16 (2007-06-09) X-Archives-Salt: 2bf1dbbd-7f98-4cd8-ad1a-edf7d1775f1d X-Archives-Hash: 9f911078cae50bd3d68bd556e5e3557c On Wed, Dec 09, 2009 at 11:17:38PM +0100, Penguin Lover Frank Steinmetzger squawked: > I use FAT32 on my external HDDs to make it easier to share with other people > and OSes. Never had a problem before, but now I do. Lately, when I save > videos to my disks, and play them back after the file system cache is > emptied, they have completely different content (of files that are long > deleted). Please describe in more detail what you actually did. Did you read/write the files in linux? Both under 2.6.31? A step-by-step maybe appreciated. > > I just had the magnificent idea to look into the syslog and found loads of > "kernel: bio too big device sdb (248 > 240)" > > I heard romours of problems with the current FAT implementation due to M$. I > went back to 2.6.30 for the moment. So what???s your proposal? Usually I don???t > have the need for ??bercurrent kernels, but would installing 2.6.32 help? Did you file a bug? Where did you hear this "rumour"? I don't see any significant changes to the VFAT driver in 2.6.31, and since (I infer from your message) that downgrading to 2.6.30 is okay, I doubt that is the issue. You are not running any sort of LVM, RAID, or encryption, are you? A similar bug seems to have occured in device mapper, where dm gave the underlying fs the wrong values for max_hw_sector. I am somehow more leaning toward the problem being in the usb subsystem. When you plug-in your device, what does /sys/block/sdb/queue/max_hw_sectors_kb say? (I'm afraid I am not actually a kernel dev... but I hope I am asking the right question so someone who actually knows what is going on can help you.) Cheers, W -- I am a nobody Nobody is perfect Therefore, I am perfect. Sortir en Pantoufles: up 1098 days, 9:14