Tag
interrupt-context
- Feb 2, 2026 Softirqs and the Per-CPU Deferred Queue How the fixed softirq vector set, the per-CPU pending mask, and the budgeted processing loop cooperate, and why running twice on one CPU is a bug rather than a race. operating systems
- Jan 26, 2026 Top Halves and Bottom Halves Why an interrupt handler cannot sleep, how the split between immediate and deferred work is drawn, and what each deferral mechanism costs in latency and context. operating systems