weird behavior for jffs2 on PQ2FADS-VR board

[Li Yang-r58472]

Here is the kernel config we used, you can have a try.


# Memory Technology Devices (MTD)
#
CONFIG_MTD=y
# CONFIG_MTD_DEBUG is not set
CONFIG_MTD_PARTITIONS=y
# CONFIG_MTD_CONCAT is not set
# CONFIG_MTD_REDBOOT_PARTS is not set
# CONFIG_MTD_CMDLINE_PARTS is not set

#
# User Modules And Translation Layers
#
CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
# CONFIG_FTL is not set
# CONFIG_NFTL is not set

#
# RAM/ROM/Flash chip drivers
#
# CONFIG_MTD_CFI is not set
CONFIG_MTD_JEDECPROBE=y
CONFIG_MTD_GEN_PROBE=y
CONFIG_MTD_CFI_ADV_OPTIONS=y
# CONFIG_MTD_CFI_NOSWAP is not set
# CONFIG_MTD_CFI_BE_BYTE_SWAP is not set
CONFIG_MTD_CFI_LE_BYTE_SWAP=y
# CONFIG_MTD_CFI_GEOMETRY is not set
CONFIG_MTD_CFI_INTELEXT=y
# CONFIG_MTD_CFI_AMDSTD is not set
# CONFIG_MTD_CFI_STAA is not set
# CONFIG_MTD_RAM is not set
# CONFIG_MTD_ROM is not set
# CONFIG_MTD_ABSENT is not set
# CONFIG_MTD_OBSOLETE_CHIPS is not set
# CONFIG_MTD_AMDSTD is not set
# CONFIG_MTD_SHARP is not set
# CONFIG_MTD_JEDEC is not set

Best Regards,
Leo
> -----Original Message-----
> From: linuxppc-embedded-bounces+leoli=freescale.com at ozlabs.org
> [mailto:linuxppc-embedded-bounces+leoli=freescale.com at ozlabs.org] On
Behalf
> Of Lei Sun
> Sent: Wednesday, July 12, 2006 12:23 PM
> To: linuxppc-embedded at ozlabs.org
> Subject: weird behavior for jffs2 on PQ2FADS-VR board
> 
> Hi all:
>     I brought up linux-2.4.30 on PQ2FADS-VR board, everything was fine
> untill i try to mount the jffs2.  My mtd partition looks like this:
> 
> dev:    size   erasesize  name
> mtd0: 00800000 00040000 "Flash SIMM"
> mtd1: 00080000 00040000 "u-boot"
> mtd2: 00100000 00040000 "Kernel"
> mtd3: 00580000 00040000 "Rootfs"
> mtd4: 00080000 00040000 "u-boot env"
> mtd5: 00080000 00040000 "unused"
> 
> Basically, I tried
> "eraseall /dev/mtd3", and then
> "mount -t jffs2 /dev/mtdblock3 /mnt", it showed as mounted, then I
> issued "echo "hello,world" > test.txt" to create a file,
> a warning was printed out
> "Node totlen on flash (0x44000000) != totlen in node ref (0x00000044)"
> , but subsequent
> "cat test.txt " still showed the correct string from that newly
created file".
> However, after I umount the  file and remount it again, it give me
> lots of errors"
> Magic bitmask 0x1985 not found at 0x00240004: 0x0c00 instead"
> Then the moutn operation failed.
>     I am suspecting it is mtd driver problem (the board use
> LH28F016SCT-L95 from sharp). But don't know how to proceed , e.g. how
> to verify the content was written into flash in a mounted jffs2 file
> system?
>     Has anybody experienced similar issue? Any suggestion?
>     Forgive me if this is wrong list to post, and very appreciate if
> anybody can direct me to the right place.
> 
> Thanks!
> lei
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