From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mga09.intel.com ([134.134.136.24]) by merlin.infradead.org with esmtp (Exim 4.76 #1 (Red Hat Linux)) id 1Rv77Y-0006Hx-7t for linux-mtd@lists.infradead.org; Wed, 08 Feb 2012 12:59:36 +0000 Content-Type: multipart/mixed; boundary="===============0085985631==" MIME-Version: 1.0 From: "Bityutskiy, Artem" To: Brian Norris Subject: Re: [PATCH v5] mtd: nand: write BBM to OOB even with flash-based BBT Date: Wed, 8 Feb 2012 12:58:54 +0000 Message-ID: <1328706066.22240.63.camel@sauron.fi.intel.com> References: <1328564640-21417-1-git-send-email-computersforpeace@gmail.com> In-Reply-To: <1328564640-21417-1-git-send-email-computersforpeace@gmail.com> MIME-Version: 1.0 Cc: Angus CLARK , Dan Carpenter , Barry Song <21cnbao@gmail.com>, Sebastian Andrzej Siewior , Nicolas Ferre , Dominik Brodowski , "Hunter, Adrian" , Gabor Juhos , "linux-mtd@lists.infradead.org" , Jonas Gorski , Jamie Iles , Ivan Djelic , Robert Jarzmik , "Woodhouse, David" , Maxim Levitsky , Dmitry Eremin-Solenikov , Kevin Cernekee , Kulikov Vasiliy , Jim Quinlan , Andres Salomon , Axel Lin , Anatolij Gustschin , Mike Frysinger , Arnd Bergmann , Lei Wen , Sascha Hauer , Florian Fainelli , Ricard Wanderlof , Peter Wippich , Matthieu CASTET , Kyungmin Park , Shmulik Ladkani , Wolfram Sang , "Dong, Chuanxiao" , Joe Perches , Guillaume LECERF , Roman Tereshonkov Reply-To: "Bityutskiy, Artem" List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , --===============0085985631== MIME-Version: 1.0 Content-Language: en-US Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="=-I2c+KNHGNRTOm8xsgvaZ" --=-I2c+KNHGNRTOm8xsgvaZ Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On Mon, 2012-02-06 at 13:44 -0800, Brian Norris wrote: > Currently, the flash-based BBT implementation writes bad block data only > to its flash-based table and not to the OOB marker area. Then, as new bad > blocks are marked over time, the OOB markers become incomplete and the > flash-based table becomes the only source of current bad block > information. This becomes an obvious problem when, for example: Pushed to l2-mtd.git, thanks! --=20 Best Regards, Artem Bityutskiy --=-I2c+KNHGNRTOm8xsgvaZ 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) iQIcBAABAgAGBQJPMnISAAoJECmIfjd9wqK0kOsP/09fZ37bZH0KkCCimrGehyC3 onx9DH9OUSz2j32SMZD9bkz0COaWiAZT6ZLmA/WRcKXQfwd3kX2Y/n/fa/4t+8s7 J7FskxaawUPNIyL6KBpKTbQEvhXMByRMGzzOeFKS0XyUAfKKUOCecE1HuUwqXq9Q 73l1jGiFoJeAdLzv9EzBpGFZ2oSxSOEU/qx+walobLfxinWweIACmtxYAvrj3fxv Ogm+VaBejteX4fOIAl0QgRFxuVhyK08TA05sVXxY8c7Xxn7RxoyXDDDshybejJ3h zN11I9E70q5b00DJotrNDXnyM6Srm4My+8cyz8ouJEzB/5uMwaEGCpDH5ncXpjE3 xrfLfqLXZEkYrScpOjW5kOQJpSFJ5IKbKs8HVFSdYm/ch3XzxDsLzE0s20P3+qnk 1cirnTKhnfFa++RLuC+NqvNkJED+F22J+/2ErtM1jiblcyoumXWWorEMLiFBlZI5 w1+OJrFsghtQwzWSQX7F+X4L4nfwMbMnV6g49pSCVxnuu0pwM1ukF3tUY8dpe9f5 xdblPzqvgiGTVltkQF5NgmvEKPEaaNZW2tKE+cjbyilRnXbb+g8yRPL0DORpfNbr +EehdB491eB5w+WIaE5u3z/9S7Cz3Mtnt9jpY6nCtoTJaDN27HoSWymkskTTA1z5 stFPbe6BDUbOJXCYaVv+ =GH1c -----END PGP SIGNATURE----- --=-I2c+KNHGNRTOm8xsgvaZ-- --===============0085985631== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Disposition: inline --------------------------------------------------------------------- Intel Finland Oy Registered Address: PL 281, 00181 Helsinki = Business Identity Code: 0357606 - 4 = Domiciled in Helsinki = This e-mail and any attachments may contain confidential material for the sole use of the intended recipient(s). Any review or distribution by others is strictly prohibited. If you are not the intended recipient, please contact the sender and delete all copies. --===============0085985631==--