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 ...

The operating system mode. Processors operate either in kernel mode or "user mode." Also called "supervisor mode," the kernel mode enables the OS (kernel) to execute "privileged instructions," which ...

Kernel Mode Linux (KML) is a technology that enables the execution of user processes in kernel mode. I described the basic concept and the implementation techniques of KML on IA-32 architecture in my ...

A complex power management system for computer devices has evolved, allowing the computer to shut down or enter lower power consumption mode while ensuring that attached devices are properly powered ...

Linux kernel version 2.6.30 has been released, adding support for new file systems, performance improvements, and new hardware drivers. The Linux kernel is the core used by GNU/Linux operating system ...

This post explains how to create a live kernel memory dump file using Task Manager. Microsoft has introduced a new troubleshooting feature in the Windows operating system to help administrators ...

Both Windows and Linux are receiving significant security updates that can, in the worst case, cause performance to drop by half, to defend against a problem that as yet hasn't been fully disclosed.

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, ...