Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S265027AbUFMIjf (ORCPT ); Sun, 13 Jun 2004 04:39:35 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S265029AbUFMIjf (ORCPT ); Sun, 13 Jun 2004 04:39:35 -0400 Received: from vhost-13-248.vhosts.internet1.de ([62.146.13.248]:29646 "EHLO spotnic.de") by vger.kernel.org with ESMTP id S265027AbUFMIjd (ORCPT ); Sun, 13 Jun 2004 04:39:33 -0400 In-Reply-To: <40C58781.1060200@draigBrady.com> References: <200406041000.41147.cijoml@volny.cz> <1086390590.4588.70.camel@imladris.demon.co.uk> <3F4B6D09-B6CA-11D8-B781-000A958E35DC@axiros.com> <40C58781.1060200@draigBrady.com> Mime-Version: 1.0 (Apple Message framework v618) Content-Type: multipart/signed; protocol="application/pgp-signature"; micalg=pgp-sha1; boundary="Apple-Mail-14--712920252" Message-Id: <213F9E7F-BD15-11D8-AAF6-000A958E35DC@axiros.com> Content-Transfer-Encoding: 7bit Cc: David Woodhouse , linux-kernel@vger.kernel.org, cijoml@volny.cz From: Daniel Egger Subject: Re: jff2 filesystem in vanilla Date: Sun, 13 Jun 2004 10:39:05 +0200 To: P@draigBrady.com X-Pgp-Agent: GPGMail 1.0.2 X-Mailer: Apple Mail (2.618) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2294 Lines: 64 --Apple-Mail-14--712920252 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset=US-ASCII; format=flowed On 08.06.2004, at 11:31, P@draigBrady.com wrote: > Can you give more detail on how you were able to "kill a card". Write to it every now and then using a touchy filesystem like ext2 and it will certainly break. As soon as a CF card starts developing bad blocks you better (trash-)can them because they're losing reliability very quickly. > Were there hot spots in those filesystems? Yes, the only place that is written every now and then is the configuration in /etc, everything else is mostly read. Of course with ext2 such changes will always end up in the same physical place on disk which can chew up the few 10K to 100K guaranteed writes last for just a really short amount of time. There're a few more problems with ext2/3 which make it a rather unpleasant filesystem for often rebooted systems with r/w mounted partitions on limited write-cycle media. Although JFFS2 on CF seems like a kludge at first it works much better than expected and never let us down so far (after changing to CVS, that is!) and makes it the top choice for quite a number of applications that want to use spindleless drives and need some (cheap) amount of capacity. Servus, Daniel --Apple-Mail-14--712920252 content-type: application/pgp-signature; x-mac-type=70674453; name=PGP.sig content-description: This is a digitally signed message part content-disposition: inline; filename=PGP.sig content-transfer-encoding: 7bit -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.4 (Darwin) iQEVAwUBQMwSrzBkNMiD99JrAQJiFwf/ftxvZhbl0oETHiInUbB98pZO4UD82Ucu mg2rEWCVrjaqThkLJowAUMyIva8EsD5efojs4VMEuOcPHV0EVBwFr92rpT+kgJmU inOsW+Vb1UMGyhtWgAtyWb6E8U3IGjSEdgCKYfP+LAgffrIc7gfr3JvITuP/Nkv4 xmV27JwgZDWJ+U5ZM+yf92r3IZD4bhKUvlzLth3kfc+J+i2ZQlJSWlL6Rvqlull0 Q6HuvB9MH4FcuHsxn0gMYMCEQn48SA/l7P+aGJp/gsxp+8INvSCkz6edeYB5I2h/ nyuC+h+iJ9RWyRpN/c+PBLe/pLYmZ01SpLiEdiWCBckBJeScdk4vhQ== =58rY -----END PGP SIGNATURE----- --Apple-Mail-14--712920252-- - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/