Liangxu Linux

Feb 19, 2022 · Fundamentals

How Linux Manages User and Kernel Memory: A Deep Dive into mm_struct and Virtual Address Layout

This article explains the complete memory layout of a Linux process, detailing user‑space structures like mm_struct and vm_area_struct, the role of TASK_SIZE, how ELF binaries are loaded, the sys_brk implementation, and the differences between 32‑bit and 64‑bit kernel virtual address spaces.