Worked on enhancing network device interrupt handling within the sched-ext/scx repository by addressing a robustness issue in Netdev IRQ balance. The solution involved implementing filters to ignore interrupts from disabled NIC queues and adding a validation step to ensure the interrupt path exists before processing. This defensive, kernel-level fix improved the reliability of network device management and reduced the risk of spurious IRQ handling in production environments. The work demonstrated strong skills in Rust and system programming, with a focus on low-level debugging and code hygiene. No new features were added, but a critical bug was resolved during this period.