Hello All ! A couple of updates on this problem. Turns out io_read also fails in the same way as io_paral - A page of data comes back as all zeros. Interestingly I added a retry option to see if it is a read or write problem and turns out every single time so far the data is correct when I read it a second time. In summary when I run runubitests.sh it passes about 70% of the time, io_paral fails 25% and io_read the remaining 5% Any recommendations on what to try next ? Thanks in advance /Otto ______________________________________________________ Linux MTD discussion mailing list http://lists.infradead.org/mailman/listinfo/linux-mtd/