I would be surprised if you see systematic failure of XO-1's so early in their lifetime. The NAND Flash used on XO-1s is rated at 100K write cycles, unlike the 5K write cycles (or worse) of the NAND Flash used in SD cards. We've always seen occasional early-mortality failures, but no pattern has emerged.
Cheers, wad On Jun 18, 2011, at 5:54 PM, [email protected] wrote: >> Either this NAND is close to complete failure, or else the bad block >> table has become corrupted. >> >> You could try recreating the bad block table as follows: >> >> ok select /nandflash scrub! unselect > > Thanks > I suspect a bad block table. They all went in the one event as far as > I can tell. Since then it does not always turn on first time when I > press power on. Diagnostics run OK except for nand bad blocks. > > But I don't think we want to reset the bad block table till we have > understood the problem. It is apparently one of a number of XO's that > wont boot on the new image. If bad blocks are a problem for the new > image, they are increasingly going to be a problem for the ageing > fleet of XO-1's > > Will try the block table after the new image issue is settled, so > thanks for that info. > > Tony > > > _______________________________________________ > Testing mailing list > [email protected] > http://lists.laptop.org/listinfo/testing _______________________________________________ Testing mailing list [email protected] http://lists.laptop.org/listinfo/testing
