error while compiling

Hello

when I am compiling bigger software with kernel 4.19.y then I got:

Sun Nov 18 19:20:44 2018 :
40000002377|rsbac_write_open(): could not 
rename fd_ff to fd_ffb on dev 179:03, error -2 - no backup!
Sun Nov 18 19:20:44 2018 :
40000002378|rsbac_write_open(): relookup of 
fd_ff returned dentry with existing inode 404917, trying unlink
Sun Nov 18 19:20:44 2018 :
40000002379|rsbac_write_open(): could not 
unlink fd_ff on dev 179:03, error -117!
Sun Nov 18 19:20:44 2018 :
40000002380|rsbac_write_open(): relookup of 
fd_ff returned dentry with existing inode 404917
Sun Nov 18 19:20:44 2018 :
40000002381|rsbac_list_write_buffers(): 
opening file fd_ff on device 179:03 failed with error -1004!
Sun Nov 18 19:20:44 2018 :
40000002382|rsbac_write_open(): could not 
rename authfd to authfdb on dev 179:03, error -2 - no backup!
Sun Nov 18 19:20:44 2018 :
40000002383|rsbac_write_open(): relookup of 
authfd returned dentry with existing inode 407579, trying unlink
Sun Nov 18 19:20:44 2018 :
40000002384|rsbac_write_open(): could not 
unlink authfd on dev 179:03, error -117!
Sun Nov 18 19:20:44 2018 :
40000002385|rsbac_write_open(): relookup of 
authfd returned dentry with existing inode 407579
Sun Nov 18 19:20:44 2018 :
40000002386|rsbac_list_write_lol_buffers(): 
opening file authfd on device 179:03 failed with error -1004!
Sun Nov 18 19:20:44 2018 :
40000002387|rsbac_write(): 
rsbac_write_lists() returned error -1004

After a reboot all working again.
Once I got a wrong ff setup on a directory which was never touched 
before.
But have to observe it.

Jens