Comment 15 for bug 1305335

I still have a running system with this issue.
It is not an ubuntu box but Arch 64. This is a fresh install.

I "stole" the disk layout from the ubuntu documentation for this system:
one btrfs partition with @ subvolume for / and @home subvolume for /home.
The system also uses a vfat ESP as it is an UEFI install.
Default kernel: currently 3.18.6-1-ARCH

I installed ecryptfs-utils (ecryptfs-utils 104-1) from the arch repo and did the following as configuration:
https://wiki.archlinux.org/index.php/ECryptfs#Without_ecryptfs-utils

The described setup above is currently working on an ext4 arch 64 bit system but not on btrfs system...

A copy or move with nautilus to Private folder results in file(s) with 0 bytes (on all file formats I have tested).
A cp or mv to Private folder results in proper amount of bytes but something is also wrong as
thumbnails for jpg are not showing in Private folder with nautilus although thumbnails are enabled. So maybe header is getting corrupted or something.
I also tested avi and tga but these did give me thumbnails. I have not tested other file formats at this time.