I had the same problem, didn't test it for a while but now I don't see the problem any more. It seems that the bugfix from kernel 4.9.61 has made its way Ubuntu, closing this bug.
Linux tlexps13 4.15.0-22-generic #24~16.04.1-Ubuntu SMP Fri May 18 09:46:31 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux cifs kernel module 2.10 mount.cifs version: 6.4 https://github.com/torvalds/linux/commit/f74bc7c6679200a4a83156bb89cbf6c229fe8ec0.patch -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1732254 Title: CIFS-Utils multiuser SMB mount : File Name too Long To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/cifs-utils/+bug/1732254/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
