Are there UBI layout changes between 2.6.35 and 2.6.36?

Charles Manning manningc2 at
Wed Nov 17 18:44:04 EST 2010


I have been helping some people get an omap3 overo-based system going. 
Everything is working fine using 2.6.35 and software ECC, but when I changed 
I change to 2.6.36 and hwecc things stop working. I get the following 
problem, and obviously no boot :-(.

UBI: attaching mtd7 to ubi0
UBI: physical eraseblock size:   131072 bytes (128 KiB)
UBI: logical eraseblock size:    129024 bytes
UBI: smallest flash I/O unit:    2048
UBI: sub-page size:              512
UBI: VID header offset:          512 (aligned 512)
UBI: data offset:                2048
UBI: corrupted PEBs will be formatted
UBI: max. sequence number:       0
UBI error: vtbl_check: bad CRC at record 0: 0xc4ef3d92, not 0x639e7026
UBI error: vtbl_check: bad CRC at record 0: 0xc4ef3d92, not 0x639e7026
UBI error: process_lvol: both volume tables are corrupted
UBI error: ubi_attach_mtd_dev: failed to attach by scanning, error -22
UBI error: ubi_init: cannot attach mtd7

I don't think this is just a straight forward software/hardware ECC issue I 
don't get the ECC error reports I would get if I load the NAND using software 

OK, the background...

The roofts is created by mkfs.ubifs, then ubinized, then programmed via u-boot 
using hw or sw ecc as appropriate.

The following are used to create the image:

ubinize.cmd is

mkfs.ubifs  -m 2048 -e 126KiB -c 1000 -r .  $tmp_dir/ubifs.tmp	
ubinize -o $out_file -p 128KiB -s 512 -m 2048 ubinize.cmd

Has something changed between 2.6.35 and 2.6.36 that will mess up the way the 
volumes are managed?



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