You probably didn&#39;t set up cgroups, e.g. by running the create_cgroups script. See last paragraph of the &quot;Linux control groups&quot; section here <br><a href="https://www.domjudge.org/docs/admin-manual-3.html#ss3.7">https://www.domjudge.org/docs/admin-manual-3.html#ss3.7</a><div><div dir="auto"><div class="gmail_quote"><div dir="ltr"><br></div><div dir="ltr">Sunilkumar Uralun Kandyil &lt;<a href="mailto:sunilkumaruk@am.amrita.edu">sunilkumaruk@am.amrita.edu</a>&gt; schrieb am Do., 28. Feb. 2019, 06:04:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">




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<pre style="white-space:pre-wrap">Compiling failed with exitcode 255, compiler output:
/root/domjudge/judgehost/bin/runguard: libcgroup initialization
failed: Cgroup is not mounted(50001)

Try `/root/domjudge/judgehost/bin/runguard --help&#39; for more information.
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