Real-time and embedded systems operate in constrained environments in which memory and processing power are limited. They must provide their services within strict time deadlines to their users and to ...

Linux processes are made up of text, data, and BSS static segments; in addition, each process has its own stack (which is created with the fork system call). Heap space for Linux tasks are allocated ...

Every operating system- whether it is Windows, Mac, Linux, or Android, has a core program called a Kernel which acts as the ‘boss’ for the whole system. It is the heart of the OS! The Kernel is ...

A fundamental overview of operating systems (OSes) with an emphasis on practice. Topics covered include: OS structure, OS models, OS abstractions, concurrency sources, concurrency challenges, ...

However, SeL4 can be used, in theory, as a foundation for Linux and other Unix related operating systems. For example, it was briefly considered for use in Richard M. Stallman's still-born Gnu Hurd ...

If you read Japanese, you might have seen the book “Design and Implementation of Microkernels” by [Seiya Nuda]. An appendix covers how to write your own operating system for RISC-V in about 1,000 ...

Windows, Linux, and macOS have all received security patches that significantly alter how the operating systems handle virtual memory in order to protect against a hitherto undisclosed flaw. This is ...

(Editor’s Note: Intel has now provided a list of the affected processors, as well as when it first learned of the problem.) Intel said Thursday that by next week, the company expects to have patched ...

At the WWDC conference last year, Apple announced plans to deprecate macOS "kernel extensions" (KEXTs) and replace them with a new mechanism called "system extensions." The first step towards this ...