whoami
Deep technical notes on operating systems, virtualization, cloud infrastructure, kernels, filesystems, emulation, and the history behind essential tools.
Trace cancellation across Azure Pipelines stages, jobs, and steps, then give permitted cleanup a finite job-level grace period and test it safely.
Design path-filtered workflows around GitHub's diff rules, file limits, and skipped-check behavior without leaving required CI pending.
Install the documented FreeDOS BW-BASIC package, exercise its numbered-line workflow, and interpret its qualified ANSI BASIC compatibility accurately.
Use MKEYB's test, layout-switching, and interrupt options deliberately, while separating physical key mapping from DOS code-page and display configuration.
Inspect FreeBSD FFS/UFS inode, directory, and block metadata with fsdb's read-only mode while preserving a strict boundary from repair.
Use geom's list, status, provider lookup, and topology tree to document FreeBSD block-device layers before maintenance work.
Trace Haiku's pinned DiscoveryAgent implementation from inquiry submission through listener callbacks, address-based deduplication, and cancellation status.
Understand R1/beta6 package activation states, pkgman cleanup's age and count safeguards, and the difference between system and home cleanup.
Distinguish lazy anonymous-page reclamation from immediate discard semantics, and build a disposable test that checks the documented boundary.
Connect systemd's per-service PSI pressure protocol to application cache policy, while keeping it distinct from cgroup limits and OOM killing.
Posts revised with new sources, corrected facts, or fixed links - not just new posts.