https://linuxtransfer.com/tags/memory/Recent content in Memory on Linux SecurityHugoenThu, 29 Oct 2026 08:32:57 +0200https://linuxtransfer.com/post/2026-10-29-tracing-a-sudden-dropinmemory-spike-with-jour/Thu, 29 Oct 2026 08:32:57 +0200https://linuxtransfer.com/post/2026-10-29-tracing-a-sudden-dropinmemory-spike-with-jour/<h2 id="sudden-memory-spike-use-journalctl--systemdcoredump-to-pin-it-down">Sudden Memory Spike? Use journalctl + systemd‑coredump to Pin It Down</h2> <p>When a server’s RAM jumps from 30 % to 90 % in a matter of minutes, the first instinct is to kill processes, restart services, or add more memory. Those are quick fixes, but they don’t tell you <em>why</em> the spike happened. On a system that runs systemd, the combination of <code>journalctl</code> and <code>systemd‑coredump</code> gives a precise, timestamp‑aligned view of what went wrong. This post walks through a real‑world scenario, shows how to extract the relevant logs, and explains how to interpret the data so you can fix the root cause and harden the system against future incidents.</p>