<div dir="ltr"><div><div>Hi Matteo,<br><br></div>If you have successfully added DEMO plugin, you should see DEMO plugin in /proc/litmus/plugins/loaded. Can you check the loaded plugins? <br><br></div>Namhoon<br><div><div><div><div><div><div><div><div class="gmail_extra"><br><div class="gmail_quote">On Sun, Apr 2, 2017 at 11:50 AM, Matteo <span dir="ltr"><<a href="mailto:matteo.locatelli1993@gmail.com" target="_blank">matteo.locatelli1993@gmail.<wbr>com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi everyone, I want to develop a new plugin for LITMUS^RT, so I downloaded the virtual image found on the website and I started to follow the tutorial that I found on the wiki. I'm currently stuck on step 2: I created the sched_demo.c file (copying the code from the tutorial), added sched_demo.o to the obj-y list in the Makefile located in the litmus folder and compiled the kernel using make in the litmus-rt folder. When I try to run the instruction setsched DEMO, it returns me this error:<br>
<br>
Error: Cannot write to /proc/litmus/active_plugin. Do you have root privileges?<br>
Error: Setting new plugin failed.<br>
Are there any active real-time tasks?<br>
<br>
Can you tell me what I am doing wrong? Thanks.<br>
Matteo Locatelli<br>
<br>
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