14:53:05nyef``It occurred to me while making coffee this morning that there's also a use-case for setting breakpoints globally: "something is calling this function, and I don't know what thread."
14:55:03nyef``... except that we already have an angle for that: take the breakpoint trap and the trap handler says "waitasec, we're already in the debugger..." and resumes instead of reentering the debugger.