28F256K3 + mtd/jffs2 ??

invictus rm invictus_rm at hotmail.com
Tue Dec 24 14:01:14 EST 2002


hi ,

    While upgrading flash from 32 MB to 64 MB ( to 28F256k3 synchronous 
flash), my mtd/jffs2 seems to have been broken.

    Since the sync flash comes with a feature of sectore lock after every
powerup , i am unlocking the mtd partition before mouting the mtd partition 
.

  But once the filesystem is mounted the df(used) increases to 100% and then 
never comes down (remains at 100%, even though nothing has been written).

Filesystem           1k-blocks      Used Available Use% Mounted on
/dev/root                15863      9972      5072  66% /
/dev/mtdblock2           51200     51200         0 100% /mnt/jffs2

bash-2.04# mtd_debug info /dev/mtd2
MTD_open
MTD_ioctl
MTD_ioctl
mtd.type = MTD_NORFLASH
mtd.flags = MTD_CAP_NORFLASH
mtd.size = 52428800 (50M)
mtd.erasesize = 262144 (256K)
mtd.oobblock = 0
mtd.oobsize = 0
mtd.ecctype = MTD_ECC_NONE
regions = 0

bash-2.04# cp /etc/services /mnt/jffs2
Newly-erased block contained word 0x19852003 at offset 0x03140000
Newly-erased block contained word 0x19852003 at offset 0x03100000
Node totlen on flash (0x00000004) != totlen in node ref (0x00000044)
ARGH. About to write node to 0x031c0dc4 on flash, but there's data already 
there
:
0x031c0dc4: 73 20 53 10 48 88 80 c0 00 2f 21 01 c4 47 30 40
ARGH. About to write node to 0x031c1470 on flash, but there's data already 
there
:
0x031c1470: 04 26 81 0a 0d 80 03 81 20 18 3c 64 03 c6 00 22
ARGH. About to write node to 0x031c1b24 on flash, but there's data already 
there
:
0x031c1b24: 9c 48 c8 17 79 0c e7 80 de cf de 31 f4 44 79 d2
ARGH. About to write node to 0x031c1dd0 on flash, but there's data already 
there
:
0x031c1dd0: a8 40 c2 00 c0 02 02 23 0c a6 1a 00 58 22 00 1d

   Is there any change that needs to be done apart from unlocking each 
sector ??
  hoping to get a response

regards
rm



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