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You've just spent three hours debugging why your userspace application crashes every time it talks to your kernel module. The ioctl calls return garbage data, pointers that seems correct in application is corrupted, and structure fields contain compl...

Difficulty: Advanced Reading Time: 10 min read Last Updated: June 30, 2025 💡 Have you ever wondered why, despite Linux’s reputation for performance, traditional I/O calls often feel slow and blocking? For decades, the kernel’s I/O model has revolve...
