help with jffs2 filesystem error

[E Robertson]

I have a problem with my jffs2 filesystem that I haven't been able to
figure out.
I tried it several ways and sometimes it worked and sometimes it does not.

First I tried creating a filesystem using mkfs.jffs2 using argument -n
--pad --little-endian --eraseblock=0x20000 and then write it to a nand
partition using nandwrite -p /dev/mtd2 root.jffs2. Then I mount using
-t jffs2 /dev/mtdblock2 /mnt/root.

This never worked and sometimes I get an uncorrectable error <3> and
sometimes I get the errors below.

I also tried using another method where I first erase using
flash_eraseall -j /dev/mtd2 then uncompress the root unto the
partition (using tar -xz -C /mnt/root ).
This worked sometimes and on the board that works it works and but I
also notice that the board it worked on did not have any bad blocks in
that partition. It may also worked on others that have bad blocks in
one or two places.
However, on other boards I get the same uncorrectable error repeating.

Does anyone have any ideas?
I would really appreciate the help. I'm on a sam9263 platform using
2.6.28.4 kernel and mtd-utils 1-1-0 and I also tried 1.2.0.

Further such events for this erase block will not be printed
jffs2_scan_inode_node(): CRC failed on node at 0x001966c0: Read
0x029fd007, calculated 0x6c56f903
jffs2_scan_inode_node(): CRC failed on node at 0x00197094: Read
0x025373b8, calculated 0xcc82a78f
jffs2_scan_inode_node(): CRC failed on node at 0x0019d184: Read
0xa0c79499, calculated 0xcdfc5a00
mtd->read(0x1fbc4 bytes from 0x1a043c) returned ECC error
jffs2_scan_inode_node(): CRC failed on node at 0x001b79fc: Read
0xfb2ec51d, calculated 0x96d2045f
jffs2_scan_inode_node(): CRC failed on node at 0x001bba1c: Read
0x899f0d3c, calculated 0x123a4153
jffs2_scan_inode_node(): CRC failed on node at 0x001bc120: Read
0xabb4012d, calculated 0x04f0936a
jffs2_scan_eraseblock(): Node at 0x001bcf6c {0x1985, 0x0000,
0xe9b407b9) has invalid CRC 0x000023e2
 (calculated 0x14165b52)
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x001bcf70:
0x07b9 instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x001bcf74:
0x23e2 instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x001bcf78:
0x00de instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x001bcf7c:
0x014c instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x001bcf80:
0x81ed instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x001bcf84:
0x03e8 instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x001bcf88:
0xc6f3 instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x001bcf8c:
0xf2d7 instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x001bcf90:
0xf2d7 instead
Further such events for this erase block will not be printed
jffs2_scan_dirent_node(): Node CRC failed on node at 0x001c01f0: Read
0xa3a565b8, calculated 0xfc1f
6b2b
mtd->read(0x1f6f4 bytes from 0x1c090c) returned ECC error
jffs2_scan_inode_node(): CRC failed on node at 0x001c090c: Read
0xc1dbde95, calculated 0xc2589888
jffs2_scan_inode_node(): CRC failed on node at 0x001c2218: Read
0x6a3ed812, calculated 0x8ff5f057
jffs2_scan_inode_node(): CRC failed on node at 0x001c3600: Read
0x57b14d94, calculated 0x54320b89
jffs2_scan_inode_node(): CRC failed on node at 0x001c416c: Read
0xa9fc3c7f, calculated 0xa882fe74
jffs2_scan_inode_node(): CRC failed on node at 0x001c45f4: Read
0x2b4441e2, calculated 0x2a3a83e9
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x001c9588:
0xe290 instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x001c958c:
0xf8cb instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x001c9590:
0xe63a instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x001c9594:
0x6f5f instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x001c9598:
0xffe5 instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x001c959c:
0xe5de instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x001c95a0:
0x6711 instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x001c95a4:
0x9851 instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x001c95a8:
0xaa3e instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x001c95ac:
0xff16 instead
Further such events for this erase block will not be printed
mtd->read(0x400 bytes from 0x1e0000) returned ECC error