So once you hit the bug it will print a lot of warnings and try to
pretend what nothing is happens.

So my predictions is follows:
1) with enable_ES_AGGRESSIVE_TEST-V2.diff patch you will see a lot of
warnings

2) with enable_ES_AGGRESSIVE_TEST-V2.diff and
   http://nerdbynature.de/bits/3.9.0-rc4/ext4/disable-es_lookup_extent.patch
 
   Issue probably will go away (will be hidden)

> 
> Thanks,
> Christian.
> 
> [0] http://nerdbynature.de/bits/3.9.0-rc4/ext4/
> -- 
> BOFH excuse #344:
> 
> Network failure -  call NBC