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  1. Bug #1167305
  2. Comment #0

Comment 0 for bug 1167305

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Matthias Gehre (m-gehre) wrote :

1. I mounted an overlayfs with uppderdir=/a, lowerdir=/b to /c
2. I copied fileA to the upperdir
3a. Did 'ls -l /a' Output is
-rwxrwxrwx 1 root root 22153090041 Jan 11 22:45 fileA
3b. Did 'ls -l /b' Output is empty.
3c. Did 'ls -l /c'. Output is
total 90946868
-????????? ? ? ? ? ? fileA
4. Did 'stat /c/fileA', Output is:
stat: cannot stat `fileA': No such file or directory

Is overlayfs broken? Did I do something wrong?
There is nothing in dmesg. Kernel is 3.5.0-26-generic #42.

How can I debug this?
I can do fairly advanced specific kernel debugging/recompiling with patches etc, but I don't know where to start.