Since updating to 4.13.1, the free space on mounted SMB/CIFS shares is not detected correctly any more. Dolphin just shows "Unknown size", and when you try to copy/move a file to the share you only get the error message "Could not write file . Disk full" (apparently the file name is missing there). There's plenty of free space on the share of course. Reproducible: Always Steps to Reproduce: 1. Mount a SMB/CIFS share, f.e. "mount //10.0.0.138/D /mnt" 2. Open the share in dolphin, by clicking on it in the "Places" panel 3. Try to copy a file to the share Actual Results: Error message that the disk is full, dolphin shows "Unknown size" instead of the free space. Expected Results: The file should have been copied successfully, the correct free space should be shown. This regression is caused by the following commit: https://projects.kde.org/projects/kde/kdelibs/repository/revisions/6246e99b43f3d1a9e15d563fbb5e173ed50ba5e5 Reverting this fixes the issue for me.
I've noticed the same issue. reverting the aforementioned commit fixed it for me, too.
*** This bug has been marked as a duplicate of bug 334776 ***