#137800 (comment)

While investigating, make JIT thread-safe for FT build.
IMO, we should separate this task into making the tier 2 interpreter thread-safe (with optimzation disabled) and the optimizer thread-safe.

But we notice that the current no-opt JIT at the default build does not pass the whole unittest.
Let's make no-opt JIT the default build pass, whole unit tests.

I plan to investigate the issue, please let me know if I should take care of something since I am not an expert on this topic.

cc @Fidget-Spinner @savannahostrowski @brandtbucher @diegorusso