mtd mount error

[little star]

Hi all,

My developement board Xscale is running a jffs2 ro rootfs and I am
trying to use free 1MB mtd partition for user data.
The mtd data (jffs2) partition is mounted to /mnt/data . Now, after
doing file operations like copy, move, edit files
on this partition, unmount and mounting again of this partition gets
failed and throws jffs2 error

JFFS2 error: (1863) jffs2_link_node_ref: Adding new ref c3d992f0 at
(0x00000000-0x00000030) not immediately after previo
us (0x00000000-0x00000000)
Unable to handle kernel NULL pointer dereference at virtual address 00000000
pgd = c3ea0000
[00000000] *pgd=03ea5031, *pte=00000000, *ppte=00000000
Internal error: Oops: 817 [#1]
Modules linked in:

any possible ideas, why it gets failed to mount ?

thanks
Pinky