Messages in this thread | | | Subject | Re: [RFC PATCH 2/2] mtd: nand: use nand_check_erased_ecc_chunk in default ECC read functions | From | Andrea Scian <> | Date | Thu, 6 Aug 2015 06:28:45 +0200 |
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Il 04/08/2015 09:21, Richard Weinberger ha scritto: > Andrea, > > Am 04.08.2015 um 09:02 schrieb Andrea Scian: >>> I'm not sure whether introducing a read-before-write check is the best solution. >>> At least we need hard numbers for slow/old SLC NANDs too. >> >> We can enable the feature only for MLC, AFAIK it has not been required for old SLC ;-) > > I think this needs more discussion. > > Boris, Brian, will you be at Embedded Linux Conference Europe in Dublin? > Maybe we can discuss these issues (data retention, ff-checks, etc...) in person and > figure out where to address them. > I really want to avoid ad-hoc solutions. :)
Maybe I'll be at ELCE this year too I'll be glad to meet all of you in person and participate to this discussion. :)
It will be nice if also some silicon vendor would like to participate. I know that someone from micron is actively following us on this ML, but I don't really know if there's someone here in Europe. :)
> >> Thanks. >> In your opinion, enabling chk_io is correct to rough estimate the overhead >> or does it enable too much checks? > > You mean the other checks bedside of self_check_write()? You can comment them out > for your tests. > > Thanks, > //richard >
Kind Regards,
--
Andrea SCIAN
DAVE Embedded Systems
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