From: "DataCom - Virgílio" <virgilio@datacom-telematica.com.br>
To: linux-mtd@lists.infradead.org
Subject: Single bit error correction on NAND.
Date: Thu, 28 Jul 2005 16:40:54 -0300 [thread overview]
Message-ID: <200507281640.54771.virgilio@datacom-telematica.com.br> (raw)
I have noticed that NAND support on MTD can detect/correct single bit errors
in 256 bytes, using software ECC. However, the correct data is not written
back to flash. In other words, the bit stays "flipped" in flash. Isn't that
dangerous? I mean, if another bitflip occurs in the same 256 bytes, we won't
be able to correct by software ECC...
Am I missing something here? Thanks in advance.
--
Virgílio Silva
next reply other threads:[~2005-07-28 19:44 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-07-28 19:40 DataCom - Virgílio [this message]
2005-07-28 21:06 ` Single bit error correction on NAND Thomas Gleixner
2005-07-28 21:40 ` DataCom - Virgílio
2005-07-29 7:35 ` Thomas Gleixner
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