This seems impossible, and besides there's code like `MovDqU xmm0, dqword[edx]` which will certainly SIGSEGV if crossing a page boundary into unmapped address s

This seems impossible, and besides there's code like `MovDqU xmm0, dqword[edx]` which will certainly SIGSEGV if crossing a page boundary into unmapped address space. I also found this SO question which claims that trivial testcases break these implementations https://stackoverflow.com/questions/21714827/movdqu-instruction-page-boundary https://stackoverflow.com/questions/21714827/movdqu-instruct... This code is just horrendously broken. Why has nobody else noticed it?