Hi there, Have you ever thought what happens internally when we execute any command/executable from the command line? We will be diving in to the ocean of kernel code internals and working of the process lifecycle (creation) in OpenBSD operating system from user-space to kernel space. We will execute the ls command from the command line then trace it through the debugger to see the magic. Following are the basic lifecycle of a process,

Hello there, I would like to introduce you all to the pledge(2) which is used to restrict the system operations and supported only on OpenBSD at the time of writing the blog. I am learning about OpenBSD kernel internals and development and would like to share some tips on how to learn about OpenBSD kernel internals and development. Following materials I followed while learning about BSD kernel internals: the book “The design and implementation of the BSD operating system” by Kirk McKusick OpenBSD source code man pages and few presentations-papers on OpenBSD ask in mailing lists and OpenBSD Facebook group.