> Am 28.09.2015 um 09:02 schrieb Bean Huo 霍斌斌 (beanhuo): > > Hello, > > > > This series aims at adding a bakvol module for MLC NAND paired page > > Power loss protection. > > MLC NAND paired page power loss is a known issue so far, MLC NAND > > pages are coupled in a sense that if you cut power while writing to a > > page, you corrupt not only this page, but also one of the previous pages > which is paired with the current one. > > Currently, there is no a perfect solution for this. > > This paired page solution is based on NAND multiple plane program > > feature. For this Patch, only used dual plane page program, means two > > different plane pages can Be programmed together at the same time. > > Dual plane page program only implements in backup operation. Only > > lower page data Be duplicated and back up into a internal log volume by > dual plane program method. > > > > This patch has been testing on Micron 70s/80s/90s MLC NAND. > > Of course there are some places needed to be improved and simplified. > > > > Any suggestion and comments welcomed. > > As stated before, using OOB in UBI is not going to happen unless proven that > there is absolutely no other way to solve the paired pages problem. > > Nacked-by: Richard Weinberger <rich...@nod.at> > > Sorry, > //Richard
Hi, Richard Thanks for your concern. I am a new patch submitter. Can you tell me Nacked-by means? By the way, Do you review my patches series ? I don't backup duplicated data in OOB . Can you specify which sector codes ? so that I can explain it in detail. Thanks.