[issue39584] multiprocessing.shared_memory: MacOS crashes by running attached Python code

[Christian Heimes]

Christian Heimes <lists at cheimes.de> added the comment:

I'm strong -1 on any kind of arbitrary memory limit. Python is used on all sorts of hardware from RPi to super computers. 1 TB sounds like a lot, but it really is not. These days you can buy workstation computers with more than 1 TB RAM.

I would be ok with a limit of 2**48 on X86_64 platforms. Current X86_64 CPUs have a virtual address size limit of 48 bits. Other hardware platforms may have a similar limit. I don't have access to AArch64 or PPC64 to verify the address size.

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<https://bugs.python.org/issue39584>
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