Modernizing stalld with eBPF

Last year I started working on stalld , a daemon that prevents thread starvation in real-time Linux systems. On systems with isolated CPUs running high-priority RT tasks, essential kernel threads can starve indefinitely. stalld monitors CPU run queues and temporarily boosts starving threads using SCHED_DEADLINE (or SCHED_FIFO as fallback). The main goal was switching from the old sched_debug…