[Bug 1480411] Re: rm -r * fails to delete directories when using overlayfs in a user-namespace

[Thomas Müller]

I can reproduce this problem on a fresh machine set-up at AWS (kernel
Linux ip-172-31-6-51 3.19.0-26-generic #28~14.04.1-Ubuntu SMP Wed Aug 12
14:09:17 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux).

Below the output of the script reproduction script linked above:

```
mounted overlayfs

ls -RF mntpt 
 -------------
mntpt:
foo/

mntpt/foo:
bar.txt

rm -r mntpt/* 
 -------------
rm: cannot remove ‘mntpt/foo’: Operation not permitted
exit code=1

ls -RF mntpt 
 -------------
mntpt:
foo/

mntpt/foo:

unmounted overlayfs
cleaning up
```

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https://bugs.launchpad.net/bugs/1480411

Title:
  rm -r * fails to delete directories when using overlayfs in a user-
  namespace

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