<div dir="auto">Can you tell me the procedure to reinstall the kernel? Because I think that probably I'm doing something wrong in this step. <div dir="auto"><br></div><div dir="auto">Regards </div><div dir="auto">Matteo </div></div><div class="gmail_extra"><br><div class="gmail_quote">Il 07 Apr 2017 13:28, "Björn Brandenburg" <<a href="mailto:bbb@mpi-sws.org">bbb@mpi-sws.org</a>> ha scritto:<br type="attribution"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><br>
> On 2 Apr 2017, at 19:25, Matteo <<a href="mailto:matteo.locatelli1993@gmail.com">matteo.locatelli1993@gmail.<wbr>com</a>> wrote:<br>
><br>
> The DEMO plugin isn't in the loaded file, but I can't understand why, it's the first time I'm trying to do something like that. Can you tell me a way to add the plugin? Thanks.<br>
><br>
> Matteo<br>
><br>
> On 02.04.2017 18:10, Namhoon Kim wrote:<br>
>> Hi Matteo,<br>
>><br>
>> 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>
>> Namhoon<br>
>><br>
>> On Sun, Apr 2, 2017 at 11:50 AM, Matteo <<a href="mailto:matteo.locatelli1993@gmail.com">matteo.locatelli1993@gmail.<wbr>com</a>> wrote:<br>
>> 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>
<br>
Did you install the new kernel and reboot?<br>
What does uname -a say?<br>
Does dmesg say anything about the demo plugin being loaded?<br>
<br>
- Björn<br>
<br>
<br>
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</blockquote></div></div>