IRQs: the Hard, the Soft, the Threaded and the Preemptible
Why the open web links it
Explains different types of interrupt handling in Linux, including hard, soft, threaded, and preemptible IRQs.
Linked by 2 independent sites, 2 of them widely read in the 2026-10 crawl of the open web, including usp.br, elinux.org.