Show HN: Hands-on x86-64 page table walk:finding a flag in physical RAM with GDB

Category: devtools

Tags: kernel, memory-management, educational

Score: 5.0/10 (Innovation: 3, Technical: 5, Documentation: 8, Utility: 4)

This project provides a hands-on educational guide for manually walking x86-64 page tables using QEMU and GDB to translate a virtual address to physical memory and find a hidden flag. It's interesting because it bridges the gap between theoretical understanding of memory paging and practical, low-level system knowledge through direct experimentation.

Target audience: backend devs, devops

Repository: https://github.com/jazho76/page_table_walk · Python · 24 stars

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