Re: Can't list directories with kernel 4.4.14 and ecryptfs

[Tyler Hicks <tyhicks@canonical.com>]

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On 06/27/2016 11:27 AM, Henry Jensen wrote:
> Greetings,
> 
> I'm using ecryptfs with Slackware current and kernel 4.4.14. In kernel
> 4.4.14 was a patch introduced which make it impossilble to list the
> contents of a directory.[0]
> 
> The mount itself works, but listing a directory results in an error
> "wrong medium type". Showing the contents and the file itself (presumed
> the name of the file is known) works.

Hi Henry - sorry for the trouble. What filesystem are you mounting
eCryptfs on top of?

Tyler

> 
> 
> Example:
> 
> henry@subnote:~$ ecryptfs-mount-private 
> henry@subnote:~$ echo "foo bar" >Private/foobar
> henry@subnote:~$ ls -l Private/foobar
> -rw-r--r-- 1 henry users 8 Jun 27 18:13 Private/foobar
> henry@subnote:~$ cat Private/foobar
> foo bar
> henry@subnote:~$ ls Private/
> ls: cannot open directory 'Private/': Wrong medium type
> henry@subnote:~$ cat Private/foo*  
> cat: 'Private/foo*': No such file or directory
> 
> henry@subnote:~$ ls .Private/      
> ECRYPTFS_FNEK_ENCRYPTED.FWZL6yY3cgf9JkRRDnGzSkFOIUQir-xo2KY6u52Ft53bpb4SnqMhgeIIl---
> 
> Output of dmesg:
> 
> [  946.181961] Error opening lower file for lower_dentry [0xffff88008d532180] and lower_mnt [0xffff8800bbf90f20]; rc = [-124]
> [  946.181973] ecryptfs_open: Error attempting to initialize the lower file for the dentry with name [/]; rc = [-124]
> 
> 
> See also [1]
> [0] https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.14
> [1] http://www.linuxquestions.org/questions/slackware-14/can%27t-access-ecryptfs-with-kernel-4-4-14-a-4175583163/
> 
> Regards,
> Henry
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