On Mon, Feb 25, 2013 at 11:21 PM, Clark Williams <williams@xxxxxxxxxx> wrote: > Changing your scheduling policy requires extra privileges. You can > either run cyclictest as root, or if your distribution uses PAM, you > can set up a file in /etc/security/limits.d which enable group access to > changing scheduler policy. You can name the file whatever you want, I > usually call mine 99-realtime.conf: > > # cat <<EOF >/etc/security/limits.d/99-realtime.conf > @realtime - rtprio 99 > @realtime - memlock unlimited > EOF > > Then create a group named realtime and add your username to the newly > created group: > > # groupadd realtime > # usermod -a -G realtime yourUserID > > Log out, then log back in and you should be able to verift that you're > in the realtime group using the 'groups' command. Once you're username > is a member of the realtime group, you should be able to run cyclictest > without being root. This problem persists even when I run cyclictest as root. I have also set up PAM as described above and added root to the realtime group without any success. I have also tried "sudo ./cyclictest" and " su -c './cyclictest' Is this perhaps a more fundamental problem? Just to recap: I applied the patch-3.2-rt10 patch cleanly to a v3.2 kernel customized for a TI OMAP (ARM) processor. CONFIG_PREEMPT_RT was enabled and CPU frequency scaling disabled. HB -- To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html