July Links

Recent posts
Why the Circular Specification Problem and the Observer Effect Are Distinct
What Factors Explain the Nature of Software?
Some Reflections on Writing Unix Daemons
Faster Shell Startup With Shell Switching
Choosing What To Read
Debugging A Failing Hotkey
How Often Should We Sharpen Our Tools?
Four Kinds of Optimisation
Minor Advances in Knowledge Are Still a Worthwhile Goal
How Hard is it to Adapt a Memory Allocator to CHERI?

Blog archive
  • On Turing machines I found this overview from of Turing’s (and other’s) early work on the theory of computers / software enlightening — even though I knew in advance that I wouldn’t know all of the details, I was surprised by how little I actually knew!
  • Self-hosting a static site with OpenBSD, httpd, and relayd I’ve been meaning to hide several of my server processes behind relayd for ages. This blog post gave me the kick up the behind I needed to do so!
  • RETBLEED: Arbitrary Speculative Code Execution with Return Instructions Another Spectre mitigation down. “we invalidate some of the key assumptions behind retpoline… RETBLEED leaks privileged memory at the rate of 219 bytes/s on Intel Coffee Lake and 3.9 kB/s on AMD Zen 2.”
  • Mechanical watch, a stunning animation and description of a mechanical watch — for the first time I (roughly) understand how they work!
  • Twenty years of Valgrind When I first came across valgrind I thought “surely that can’t work with any real software?” Yet it did, and I’m still using it regularly 20 years later!
Newer 2022-07-31 08:00 Older
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