I have a folder in a usb drive connected to a Mac on OS X 10.11.6 shared by Samba to PC users
This folder is monitored by an ownCloud client on this mac
after few minutes, owncloud freeze for a good moment and smb daemon stop responding
i thought it was a maximum user connected or some user permissions, ...
the ownCloud client logs looks normal without error
same for the ownCloud server no error
but my server shows this :
smbd: query_directory error<0xc000000f>