Systems Adminstrator's Blogs Are Boring.
This one, I'm sure, is no exception. Posts are often written at the end of a long working day; I'm frequently confused, drunk and alone.
Or am I?
Found it! All 6 of my PIs are running the same code, but the latest two don't crash.
If I use the PSU from one of the new ones with one of the old PIs, that doesn't crash either.
It's not a quality control problem with the RPI, it's just shitty power supplies!