We spoke about this on Irc, here i post the testfs on all the kernel i
have at my disposal.
i allready posted the 4.x ones i think before
All show errors on vspace until 3.18, on 3.13 it is still only space
errors. Then 3.18 i have inodes errors but no more vspace errors.
So we have a vspace error since a long time that have been corrected
and the inode error came between 3.13 and 3.18.
If others have the missing kernels perhaps we can narrow it more for the