Jan 24, 2025 · A kernel is the core part of an operating system. It acts as a bridge between software applications and the hardware of a computer. The kernel manages system resources, …

How does an OS kernel communicate with physical devices? How do device interrupts work? Where does the CPU run after an interrupt? What is the interrupt handler written in? What …

Jan 13, 2013 · When the operative system takes the process from active to waiting, it stores all registers (that includes the stack pointer and the program counter) in the kernel's process …

In this tutorial you will write a simple kernel for 32-bit x86 and boot it. This is the first step in creating your own operating system. This tutorial serves as an example of how to create a …

Jul 22, 2021 · The first step is setting up a kernel stack. Setting up a stack is quite simple. We only need to point the esp register to the end of an area of free memory that is correctly aligned.

Interrupt Stack •Per-processor, located in kernel (not user) memory –Usually a process/thread has both: kernel and user stack •Why can’t the interrupt handler run on the stack of the …

Mar 18, 2024 · The kernel stack and the user stack are implemented using the stack data structure and, taken together, serve as a call stack. In this article, we’ll discuss the usage of …

Goal: How to implement a system call, a kernel call and a system process? Expect kernel panics! multiply() is a system call and also a kernel call. calc() invokes kernel call for multiply() to get …

Have an understanding of high-level OS kernel structure. Have practical skills in system tracing and performance analysis. Have been exposed to research ideas in system structure and …

There is (basically) one "kernel stack" per CPU. There is one "user stack" for each process, though each thread has its own stack, including both user and kernel threads. How "trapping …