On Tue, Aug 08, 2017 at 09:27:38AM +0800, Dai Xiang wrote: > > > > Actually, this is one of the tests in the "encrypt" group, which format the > > scratch device with "-O encrypt". So I believe the printed message is correct. > > Are you 100% sure that CONFIG_EXT4_ENCRYPTION is enabled in your kernel config > > and that you are running the correct kernel? > > I use v4.13-rc3 kernerl, and i find this info refer to https://wiki.archlinux.org/index.php/ext4#Using_file-based_encryption: > > Ext4 forbids encrypting the root (/) directory and will produce an error on kernel 4.13 and later > > Does it impact? > No, the tests do not try to encrypt the root directory. Can you please double check that the kernel you're testing actually has CONFIG_EXT4_ENCRYPTION enabled? Eric
