Prasad Koya:
> and finally we switch root (in busybox still) before launching init
>
> exec switch_root -c /dev/console /newroot /sbin/init

Before you run switch_root, I'd suggest you to try "mount --move" to
make branch fs visible.
$ for i in newroot-overlay squashed-root
  do
        mkdir /newroot/$i
        mount --move $i /newroot/$i
  done

But I don't know this is the cause of your problem.


> I went through the code. Is it possible file->private_data is somehow
> freed up inside au_h_open?

As far as I know, there is no such code in aufs.  But your kernel is
cusomized by some unknown (to me) patches.  So I have to add a magic
word "probably."


J. R. Okajima

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