From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mga01.intel.com ([192.55.52.88]) by merlin.infradead.org with esmtp (Exim 4.76 #1 (Red Hat Linux)) id 1SkbXr-0007I9-GC for linux-mtd@lists.infradead.org; Fri, 29 Jun 2012 13:47:38 +0000 Message-ID: <1340977901.3070.210.camel@sauron.fi.intel.com> Subject: Re: [PATCH] UBI: Change the default percentage of reserved PEB From: Artem Bityutskiy To: Richard Genoud Date: Fri, 29 Jun 2012 16:51:41 +0300 In-Reply-To: <1340953061-15728-1-git-send-email-richard.genoud@gmail.com> References: <1340953061-15728-1-git-send-email-richard.genoud@gmail.com> Content-Type: multipart/signed; micalg="pgp-sha1"; protocol="application/pgp-signature"; boundary="=-mp4pLt36clgX0v8TR3n8" Mime-Version: 1.0 Cc: linux-mtd@lists.infradead.org, linux-kernel@vger.kernel.org Reply-To: dedekind1@gmail.com List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , --=-mp4pLt36clgX0v8TR3n8 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On Fri, 2012-06-29 at 08:57 +0200, Richard Genoud wrote: > The actual value (1%) is too low for actual NAND devices, a huge > majority of device has 2% maximum bad blocks (SLC or MLC). > (Actually it's 20 blocks on a 1024 blocks device, 40/2048...) >=20 > Signed-off-by: Richard Genoud Thanks. But I'd like to wait a bit - Shmulik's point is fair and the current way UBI reserves PEBs is probably not the right thing to do. If we are going to change it, I'd like to have this patch to go together with that change. Just because it is better to change the default behavior once, than 2 times, to possibly upset/surprise users less times :-) --=20 Best Regards, Artem Bityutskiy --=-mp4pLt36clgX0v8TR3n8 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 v1.4.12 (GNU/Linux) iQIcBAABAgAGBQJP7bLtAAoJECmIfjd9wqK0e4YP/1MT5dnqEE9H5nCk/bvwTQ+N 8irFKi8ueUo2QxxxlHz8TWlSGpPLOd3yNUWUEwT9TuJ2cvOsYacmW3Veh7ddh/sk YCLG+BkDsw7pXSXjQFqBrb9zjhpe1gpBQ8AlCSwQc6sv/mAzWJ4YiTyX4B8S8akK 7G6ID5eRK8vwboEtysSw/b0LgJcF+4i6gl5Zj/PrhU/Wi5oP6nvKPbxVnDGzN7lU 4hIeh+/GKLLzRH4nDeFmTvs9DTi72r/g3/fcUVtMZkCb+Tjhp8zyEaHv6QNyYSzO ArjMiVBKRyPs13flFH2Ui/xqGGBQjZ6/kdXak3/xew8bvRXSXXZD0n3JYdV5wWbE qaIhQUWZN+cMsqSIi+8S+zgRi5tPkKfrU6hUI19i6iRz+amDtx0h/R8+U0Or8rru STRnC5gc8d79pUcBa9VyXjRpTuaxxKnCcVCL8dQrqz6UWUj0UXWxI/0AcGGQKHnw CwgqroQvqT1dSa8VeHad822LuS8G1nDj1ywMX25ACF5RNd+uZI5JeHAK3wjq0hBh 36TRwgPCi2cav157TTeVUn7f6TmcFbtbrDuLGVR59IMzC+w8qcRCORVcloOSd58d 5qGXlj8chs/bERHlyFwFM/nceoczeMrw9YEZ3+qaHwmMvC1BK/NHYamP+qDXXdRO HzhEWVEBYZ1TOBGpGDvc =0kVn -----END PGP SIGNATURE----- --=-mp4pLt36clgX0v8TR3n8--