[BusyBox] solution to "VFS: busy inodes on changed media" needed

[Aditya]

Hi
I am facing an issue while booting my soekris net-4521 :
"VFS : busy inodes on changed media"
Why this error comes?
The whole message looks like this :
===========================================
freeing unused kernel memory: 64k freed
VFS: file system mounted readonly
Mounting local filesystem
VFS: busy inodes on changed media
===========================================
can anyone help me out why this VFS : busy inode error is coming ?
regards
Aditya