From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-iy0-f177.google.com ([209.85.210.177]) by merlin.infradead.org with esmtps (Exim 4.76 #1 (Red Hat Linux)) id 1Rbvok-0007DY-KN for linux-mtd@lists.infradead.org; Sat, 17 Dec 2011 15:04:55 +0000 Received: by iadk27 with SMTP id k27so5535104iad.36 for ; Sat, 17 Dec 2011 07:04:53 -0800 (PST) Message-ID: <1324134380.4240.40.camel@sauron.fi.intel.com> Subject: Re: [PATCH] mtd: nand: write bad block marker even with BBT From: Artem Bityutskiy To: Brian Norris Date: Sat, 17 Dec 2011 17:06:20 +0200 In-Reply-To: References: <1323292100-19280-1-git-send-email-computersforpeace@gmail.com> <1323723000.2297.4.camel@koala> <20111213094805.04c4b8c9@pixies.home.jungo.com> Content-Type: multipart/signed; micalg="pgp-sha1"; protocol="application/pgp-signature"; boundary="=-sr/c5QJ5O0/dyjcy5ljr" Mime-Version: 1.0 Cc: Kevin Cernekee , Jim Quinlan , linux-mtd@lists.infradead.org, Shmulik Ladkani , Matthieu CASTET Reply-To: dedekind1@gmail.com List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , --=-sr/c5QJ5O0/dyjcy5ljr Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On Wed, 2011-12-14 at 12:46 -0800, Brian Norris wrote: > This is one of the problems. We would need to invalidate both BBTs in > step 1, making our attempts at mirroring pointless. In fact, in some > power cut cases, we could be left in a worse condition than if we > didn't try to compensate for power cuts, since we just killed our > backup table. I agree that it is not probably worth the effort, but would be nice to do, if someone has time and thinks this is useful. But I think it would be fair to request to add a comment which describes this hypothetical issue and this possible solution, would it? --=20 Best Regards, Artem Bityutskiy --=-sr/c5QJ5O0/dyjcy5ljr Content-Type: application/pgp-signature; name="signature.asc" Content-Description: This is a digitally signed message part Content-Transfer-Encoding: 7bit -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) iQIcBAABAgAGBQJO7K/sAAoJECmIfjd9wqK0/TEP/0RYXjsrameoL7jR40OpBl1F 7sSLcCDDckjJHTuLbGcbJdhBWWqgMu6bhuE8EKWFh5hH9psBVuJ8BjbbNQ6C6Jpz IW8zn1KQEAB8PffJm/1RE6Rs7IKuNikDlzoAQ4Q2Le49HIJmqo1Mc+XNkNNV0g59 VkFbHiGIhhJUtL6x28KIEADeQlOcwKqCQoo0fuoe+HfujTvHT+4UYfI625fEeNE3 f1ITqk9m5lElxK+UjEQ4L45Ze3Gxn4RiwsCltTqKXaNvP0mV3B7TIh5qLoeS/qWl YhoxaDgjDaU5n57/CNXpm6LcsXfVJkOX/WZ8ptgqCcLypi91BVrxpAeZBxxc8iE8 lFuvvDeHxGVlgZM1rbf7WHuV9UEkkpjDNMDfCy91iU2ntMj0uGhVC7KSuP9ujkwJ +KIzMc23mjPKoa9JJY7PEo9S0jj6nk5HAoUgYCfBltAkts9+fkp3IbWa5Uk8NGIN LVNaI2YJ/tUJLeMek9rWy2da9xB6rtRQoSCX+7j0YOiexFM7e53PeEQOXzxm9LQP M0zKilmWH9nJKclpWtKHIubja3Bn4YS39yBij/zZ0HtgPlDKfIrDgdKkIE5Omlmk MHyUbmmmdnl62XDb2N0AZXtt9oII7+qIHvOBbz3n4FdRot+mWmIetXcJxWHcluHI z9MqjERDux4ixwqddZeI =Y9Aq -----END PGP SIGNATURE----- --=-sr/c5QJ5O0/dyjcy5ljr--