Comment 39 for bug 372014

I can repeatably create the error, it has become more frequent lately. I start out with ~20 GB of free space on my drive, as I run bittorrent or wine in the background free space reaches zero in 12-24 hours. After this the system cannot be shut down giving thousands of messages as such:

ecryptfs_read_lower: octets_read = [-4]; expected [4096]
ecryptfs_read_and_validate_header_region: Error reading header region; rc = [-22]

After a hard restart the famous messages appear:

Valid eCryptfs headers not found in file header region or xattr region
Either the lower file is not in a valid eCryptfs format, or the key could not be retrieved. Plaintext passthrough mode is not enabled; returning -EIO

This error keeps me losing any configuration that should have been saved in the home directory, including Firefox database, terminal settings, even gnome desktop configuration.

I think you either should warn the installing user that encrypting home directory is an experimental feature, or elevate the importance of this bug.

Ubuntu Karmic 9.10

uname -a:
Linux x64 2.6.31-9-rt #152-Ubuntu SMP PREEMPT RT Thu Oct 15 13:22:24 UTC 2009 x86_64 GNU/Linux