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[Bug 1344405] [NEW] Kernel missing /proc/keys


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lsb_release -rd
Description:       Ubuntu 14.04 LTS
Release:              14.04

apt-cache policy linux-generic

  Version table: 0
        500 http://ca.archive.ubuntu.com/ubuntu/ trusty-updates/main amd64 Packages
        500 http://security.ubuntu.com/ubuntu/ trusty-security/main amd64 Packages
 *** 0
        500 http://ca.archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages
        100 /var/lib/dpkg/status


When attempting to clear NFS uid/gid cache I ran nfsidmap -c

expected Result
no response, nfsidmap does not return anything if it completes properly

[root@quebec ~]# nfsidmap -c
[root@quebec ~]#

What did happen

root@u1404vm:~# nfsidmap -c
nfsidmap: fopen(/proc/keys) failed: No such file or directory

I checked /proc and the /proc/key-users file and the
/proc/sys/kernel/keys directory were there.

I Looked up Kernel Key Management and saw that /proc/keys was needed to
hold the key pairs used by the kernel.

 From Google'ng the following kernel option needs to be enabled


or /proc/keys does not get created.

I checked /boot/config-3.13.0-24-generic and that option is not enabled.

I checked this on both Centos 6.5/7 and Mageia and they are enabled and
/proc/keys exist, nfsidmap -c works.

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New

** Tags: bot-comment
Kernel missing /proc/keys
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