> Anyway, if my memory is correct, the issue was that memcpy was copying an extra 1-3 bytes at the end of the range, if the start of the range was unaligned. If

> Anyway, if my memory is correct, the issue was that memcpy was copying an extra 1-3 bytes at the end of the range, if the start of the range was unaligned. If there happened to be a pointer there then that would lead to a crash down the line. My memory could be off though. Ahhh I could see how that could be! Fascinating. That's exactly the kind of heisenbug I used to love. I always liked the ones that seemed literally impossible but had a nice explanation.