[LU-15407] fscrypt does not work on Ubuntu 5.8 kernel

• Type: Bug
• Resolution: Fixed
• Priority: Critical
• Fix Version/s: Lustre 2.15.0
• Affects Version/s: Lustre 2.15.0
• Environment: Ubuntu 20 HWE client running a 5.8 kernel.
• Severity: 3
• Assignee: Sebastien Buisson
• Reporter: James A Simmons

Description

With Ubuntu LTS running a 5.8 kernel which has native fscrypt support I added in sanity-sec testing. This is using the default embedded llcrypt and it failed the fscrypt test. For sanity-sec 46 I get:

== sanity-sec test 46: encrypted file access semantics without key ========================================================== 07:46:51 (1641221211)
10.0.0.10@tcp:/lustre /mnt/lustre lustre rw,checksum,flock,user_xattr,lruresize,lazystatfs,nouser_fid2path,verbose,encrypt 0 0
Stopping client samuel /mnt/lustre (opts
Starting client: samuel:  -o user_xattr,flock,test_dummy_encryption 10.0.0.10@tcp:/lustre /mnt/lustre
mount.lustre: test dummy encryption option ignored: could not insert dummy encryption key into session keyring
Unable to dump key: Key has been revoked
Format:

All the fscrypt test fail the same way.

Issue Links

• is related to: LU-13717 Client-side encryption - support file name encryption
• is related to: LU-13783 Support for linux kernel version 5.8