Apparently, something is wrong with CalendarAgent in macOS Catalina 10.15.6. It goes totally bezerk, and within minutes can easily eat more than 25G of memory.
Some seem to mistakenly believe that George Orwell's 1984 was an instruction manual. It was a warning against dictatorship and specifically the socialist / communist / nazi / fascist / marxist flavor of dictatorship that sprouted all along the XXth century. It looks like the younger generation does not know enough history, and they are being played again, using the exact same playbook.
About five years ago, in 2015, I wrote a rather long document about how to design an operating system from scratch. I won't give the precise context on why I did that. Some people might be able to guess it from the content. There was a question on Quora that I thought I would answer … Continue reading Old ideas about an OS from scratch
I upgraded to macOS Catalina last week (10.15.1). Since then, my computer has crashed no less than three times with the exact same kernel panic, pointing out to something wrong with the graphics driver (com.apple.kext.AMDRadeonX4000). The usual trick of letting one minor version pass before upgrading did not work. Update 1: It's a widely reported … Continue reading macOS Catalina Kernel panics
A friend of mine, Paul Courbis, has recently re-published old books of his on Amazon. The books are about the HP Saturn-based calculators, like the HP-48. The 1990s are calling, they want their development tools back This apparently rekindled some interest in these old HP calculators, and someone asked him about HPDS (HP Development System), … Continue reading The return of HPDS (and MacOS9 in qemu)
I finally completed it! It only took 32 years… Informagie is a science-fiction book I started writing as a student. It's in French, although I'm currently working in the English version. Here is the blurb describing the book on Amazon: J'ai retrouvé ce manuscrit dans mon grenier. Il a été écrit par mon oncle Antoine … Continue reading Informagie, my first sci-fi book
When Apple launched the iPhone, it lacked a number of features, but Apple soon added the AppStore, and it proved a raging success. The Watch, on the other hand, did not follow the same pattern. Unfortunately, it still lacks a basic feature three years after launch: you are stuck with a very limited set of … Continue reading Apple Watch faces: still ugly after 3 years
At the Paris Open Source Summit, I had a long discussion with engineers from AdaCore, that reminded me of the early roots of XL in Ada. I have never really retraced the steps along the way, and this was an interesting walk for me. I thought I'd share… My interest in programming languages is quite old. … Continue reading From Ada to XL in 25+ years…
This time of year is often used to do various cleanup chores. Today is "get rid of old paperwork day". And I decided to try and go paperless. One thing I learned how to do today is to use Tesseract and Ghostscript to archive searchable PDFs from scans. Scanning documents is the easy part. The … Continue reading Going paperless
There's something wrong with iPhone contacts. Simple operations like deleting an old phone number fail randomly. Anybody knows why? Case in point: one of my kids just moved to London for his first job. He now has a UK phone number. That's what I want as the primary phone number for him. This seems like … Continue reading iPhone contacts