I have a very high frequent used samba server. The Problem is that when I stop the smbd.service sometimes, I can not really reproduce it, instead of subdirectories on the share, files appear with \ in the filename.
the share is '/data' and there are some subdirectories like '/data/content/test/mine' or '/data/someothercontent/shared/or not'. And as mentioned above, when I stop smbd then files like this appear:
Latest samba from centos 7.4 repo.