This error message may be seen on Linux server when enabling remote JTAG server, this is because JTAG Daemon (jtagd) is running incorrectly in user mode.
For example, you may see this message in Red Hat Enterprise release 6.10:
[root@localhost etc]# jtagconfig --enableremote <password>
Error when setting password - Feature not implemented or unavailable under current execution privilege level
To work around this problem, kill the jtagd process and rerun it in daemon mode:
[root@localhost etc]# killall jtagd
[root@localhost etc]# jtagd
You can now enable the remote JTAG server with following command:
[root@localhost etc]# jtagconfig --enableremote <password>