https://opscode.io/tags/ansible/Recent content in Ansible on OpscodeHugo -- 0.162.1en-usSat, 06 Jun 2026 00:00:00 +0000https://opscode.io/posts/kernel-pinning-dkms/Sat, 06 Jun 2026 00:00:00 +0000https://opscode.io/posts/kernel-pinning-dkms/<p>I work with industrial Linux systems that have strict real-time requirements. The hosts run low-latency kernels and depend on out-of-tree kernel drivers compiled against the running kernel. When any part of that chain breaks, critical functionality is lost.</p> <p>Kernel pinning and out-of-tree driver management are two related problems that need to be solved together. This post covers why, and how.</p> <hr> <h2 id="why-the-low-latency-kernel">Why the low-latency kernel</h2> <p>The generic kernel runs fine on most Ubuntu hosts. The issue is not that it is broken; it is that it does not meet the timing requirements of the software and hardware devices connected to these systems.</p>