kernel space

Detailed Explanation of Memory Management in Linux

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Detailed Explanation of Memory Management in Linux

来源： https://blog.csdn.net/qq_40276626/article/details/120477263 Memory Management in Linux The main task of memory management is to organize physical memory, followed by the allocation and reclamation of physical memory. However, Linux introduces the concept of virtual addresses. The Role of Virtual AddressesIf user processes directly manipulate physical addresses, the following issues may arise:1. User processes can directly manipulate … Read more

Learning the Linux Kernel – System Calls

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Learning the Linux Kernel - System Calls

Learning the Linux Kernel – System Calls Info ❓ How can user applications safely and stably access underlying hardware and system resources in a multitasking and virtual memory operating system while preventing illegal operations? Main Idea By introducing system calls as the only <span>legitimate intermediary</span> between user processes and the kernel, we can abstract hardware, … Read more