Ronald Oussoren <[email protected]> added the comment:
I've done some more testing, and the thread stack size could be smaller than
16MB, but definitely not as small as the value that's currently in
thread_pthread.h.
I prefer to have a slightly too large value here because IIRC the relation
between the recursion limit and C stack usage is a heuristic.
BTW. It should be possible to implement PyOS_CheckStack() on macOS. There are
(undocumented) APIs in the public header files to get the stack base and size
for the current thread. These APIs also work for the main thread:
# ---
#include <pthread.h>
#include <stdio.h>
int main(void)
{
printf("%#lx\n", (long)pthread_get_stacksize_np(pthread_self()));
printf("%p\n", pthread_get_stackaddr_np(pthread_self()));
}
# ---
----------
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<https://bugs.python.org/issue18049>
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