3.2.15 sys_get_vfs_quota -- failed for mntpath[ a device ] bdev [ a device ] qtype[4] id[513]: Invalid argument

[lejeczek]

or
... qtype[2] id[501]: Invalid argument

above version of samba does not seem to be able to recognize 
FS(ext4) quotas,
could you gents.ladies shed some light please? very much 
appreciated.
regards