Hi,
On Fri, Jan 3, 2014 at 6:29 PM, Artem Bityutskiy artem.bityutskiy@linux.intel.com wrote:
Hi Pekon,
On Fri, 2014-01-03 at 11:45 +0000, Gupta, Pekon wrote:
*_Case-1_ Flashing UBIFS image from u-boot using 'nand write' utility*
For a partially written erased-block.. (a) 1st page is written with 'erase-header' (b) 2nd page is written with 'volume-header' (c) '3rd page' is written with 'some data' (d) '4th to last-page of block' should be left blank, but they are written with 0xFF. As a effect of (d), the ECC calculated for (all 0xff data) is written to OOB area of all pages from 4th-page till last-page of the PEB.
Yup.
If the 4th to last-page are left blank and not covered with ECC, what will happen in case of bit flips on the blank pages? There was an issue reported some time back. http://lists.infradead.org/pipermail/linux-mtd/2012-January/039256.html
Does UBI/UBIFS take care of this now?
Thanks, Calvin