hello today, I discovered that my installation has this problem.
Ubuntu 16.04 LTS x64 Linux mylaptop 4.4.0-64-generic #85-Ubuntu SMP Mon Feb 20 11:50:30 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux it ran out of space, and after 40% of disk has been freed - it does not create new files; the error gives: # dmesg | tail [ 6813.738671] ecryptfs_do_create: Failure to create dentry in lower fs; rc = [-28] [ 6813.738674] ecryptfs_create: Failed to create file inlower filesystem [ 6813.833609] ecryptfs_do_create: Failure to create dentry in lower fs; rc = [-28] [ 6813.833615] ecryptfs_create: Failed to create file inlower filesystem [ 6827.199794] ecryptfs_do_create: Failure to create dentry in lower fs; rc = [-28] [ 6827.199797] ecryptfs_create: Failed to create file inlower filesystem [ 6827.271814] ecryptfs_do_create: Failure to create dentry in lower fs; rc = [-28] [ 6827.271817] ecryptfs_create: Failed to create file inlower filesystem [ 7241.586390] BTRFS info (device dm-2): relocating block group 237326303232 flags 1 [ 7241.758894] BTRFS info (device dm-2): relocating block group 237326303232 flags 1 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/872905 Title: ecryptfs should recover better from "out of disk space"-situations Status in eCryptfs: Fix Released Status in ecryptfs-utils package in Ubuntu: Invalid Status in linux package in Ubuntu: Fix Released Status in ecryptfs-utils source package in Precise: Confirmed Status in linux source package in Precise: Fix Released Status in ecryptfs-utils source package in Quantal: Invalid Status in linux source package in Quantal: Fix Released Bug description: currently ecryptfs does not recover well when the encrypted disk had run out of disk space. This could be improved (maybe something similar to the space reserved for root on ext2 partitions?). The issue that I usually run into is 0-sized files under /home/.ecryptfs and the corresponding entries in /var/log/syslog. There may be other issues as well. Thank you for your work To manage notifications about this bug go to: https://bugs.launchpad.net/ecryptfs/+bug/872905/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp