[issue23433] undefined behaviour in faulthandler.c, exposed by GCC 5

[STINNER Victor]

STINNER Victor added the comment:

faulthandler._stack_overflow() is written to crash. The comparison on stack pointers is just here to avoid an unlimited loop. A stack of 100 MB is something really large. I never seen an OS where faulthandler._stack_overflow() doesn't crash yet.

Here is a patch using Py_uintptr_t instead of void*.

Can someone test with GCC 5?

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keywords: +patch
nosy: +haypo
Added file: http://bugs.python.org/file38083/faulthandler_uintptr.patch

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