2 results found
Can you pop popcorn in an air fryer? It’s a question that’s likely crossed the mind of many a kitchen gadget enthusiast, especially those looking for a healthier, oil-free snack. The air fryer has revolutionized how we
This article details the journey of debugging mysterious system freezes caused by eBPF programs in the Linux kernel. We uncovered an issue where an NMI-driven eBPF sampling program would self-deadlock by attempting to acquire a spinlock already held by another eBPF program on the same CPU, leading to 250ms kernel timeouts. The analysis highlights the complexities of spinlocks, NMIs, and cache coherence in kernel development.
