Tom Lord <xxxxxx@emf.net> writes:
>     > Also, when running in a system with a precise collector and
>     > interrupt-anytime threads, Pika-style would require the elided
>     > mn__[begin|end]_incoherent() critical section calls?
>
> No.
>
> There is an independent and wholly unrelated reason to want those for
> different examples, but they are not required for any of what we are
> discussing.

Under such a GC, would Pika-style scm_car and scm_cdr require critical
sections to be marked internally?