Kernel Update on NAND (CM-510 Compulab)

[Ezequiel Garcia]

+mtd folks

On 25 August 2015 at 08:46, Gabriel Dobato <dobatog at gmail.com> wrote:
> Hi Ezequiel,
>
> Sorry for disturbing you again. I contacted you when I was trying to set the
> Nand driver ( pxa3xx_nand) with Device Tree on 3.19 Kernel Version for
> Compulab CM-510 platform. Until now, it has worked right, I have made some
> MTD tests and everything is OK.
>
> But now, I would like to update the kernel (/dev/mtd0), while the system is
> working on NAND. If I try it, I get some UbiFS Errors:
>
>
> root at debug:~# flash_eraseall /dev/mtd0
> flash_eraseall has been replaced by `flash_erase <mtddev> 0 0`; please use
> it
> Erasing 128 Kibyte @ f20000UBIFS error (pid 2679): ubifs_read_node: bad node
> type (255 but expected 2)
> 0 -- 47 % compleUBIFS error (pid 2679): ubifs_read_node: bad node at LEB
> 1055:59640, LEB mapping status 1
> Erasing 128 Not a node, first 24 bytes:Kibyte @ f220000
>  -- 47 % complet00000000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
> ff ff ff ff ff ff ff                          ........................
> Erasing 128 KibyUBIFS error (pid 2681): ubifs_read_node: bad node type (255
> but expected 2)
> te @ f2a0000 -- UBIFS error (pid 2681): ubifs_read_node: bad node at LEB
> 1055:34096, LEB mapping status 1
> ENot a node, first 24 bytes:rasing 128 Kibyt
> e @ f2c0000 -- 400000000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
> ff ff ff ff ff ff ff                          ........................
> Erasing 128 Kibyte @ f300000 -- 47 UBIFS error (pid 2679): ubifs_read_node:
> bad node type (255 but expected 0)
> ErasUBIFS error (pid 2679): ubifs_read_node: bad node at LEB 1550:41016, LEB
> mapping status 1
> ing 128 Kibyte @Not a node, first 24 bytes: f320000 -- 47 %
> Erasi00000000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
> ff ff ff ff                          ........................
> ng 128 Kibyte @ UBIFS error (pid 2679): ubifs_iget: failed to read inode
> 16299, error -22
> Erasing 128 Kibyte @ fUBIFS error (pid 2679): ubifs_lookup: dead directory
> entry 'sendmail', error -22
> Erasing 128 Kibyte @ 11040000 -- 53 % complete flash_erase: Skipping bad
> block at 11060000
> Erasing 128 Kibyte @ 1fee0000 -- 99 % complete flash_erase: Skipping bad
> block at 1ff00000
> flash_erase: Skipping bad block at 1ff20000
> flash_erase: Skipping bad block at 1ff40000
> flash_erase: Skipping bad block at 1ff60000
> flash_erase: Skipping bad block at 1ff80000
> flash_erase: Skipping bad block at 1ffa0000
> flash_erase: Skipping bad block at 1ffc0000
> flash_erase: Skipping bad block at 1ffe0000
> Erasing 128 Kibyte @ 1ffe0000 -- 100 % complete
>
>
> However if I try it from another space (SD-CARD) it works as expected.
>
> If you have a litle time, just to give me a direction in order to find out
> where the problem is, I really apreciate.

I'm not sure I'm following you:

Your /dev/mtd0 is attached to a mounted UBIFS while you are erasing it?

-- 
Ezequiel García, VanguardiaSur
www.vanguardiasur.com.ar