Errors In Jffs2 File System On Boot - In Root

[ShiroiKuma]

I'm running RC12.

Noticed every reboot that there's a bunch of errors before the root is mounted...

Just after the line

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IrCOMM protocol (Dag Brattli) and just before the

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VFS: Mounted root (jffs2 filesystem) readonly.
Mounted devfs on /devmessage I get these

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cramfs: wrong magic
FAT: bogus logical sector size 301
Inode #1645 was a directory with childer - removing those too..
Inode #19702 was a directory with childer - removing those too...
.
.
.lines...

Is this a cause for concern?

Can I do something about it?