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On Thu, 21 Feb 2019 02:47:49 +0000
Andrew Gierth <> wrote:

Propagation will have left any weak tables on the

I've been gone too long. What's a "weak table?"

> "grayagain" list; unless I'm misreading something, it looks like it's
> intended that g->weak and g->ephemeron should be empty outside of the
> atomic phase.

Is ephemeron some kind of reserved word or part of the language?