Tag
process-state
- Aug 7, 2026 Process States and the Transitions the Kernel Actually Tracks Why the kernel keeps a bitmask rather than a state enum, how runnable differs from running, and what the letter printed by ps leaves out. operating systems
- Feb 28, 2026 The Three-Level Indirection Behind a Unix File Descriptor How a small integer reaches an inode through a per-process table and a shared open file description, and which operation copies which level. computing history
- Apr 1, 2025 What a File Descriptor Is: An Index Into a Process Table The descriptor is a small integer indexing a per-process array of pointers, and that indirection explains dup, fork, close, and the shared-offset bugs that follow from each. systems programming
- Oct 22, 2024 Checkpoint and Restore of a Running Container How a process tree is frozen, serialised to disk and reconstituted, which state can be captured exactly and which state must be re-established cooperatively. virtualization