Set resource limits
This is exactly what the get_user_pages() family of functions provides. These functions lookup physical memory frames that back a given virtual address range by walking the page tables. They also handle access validation and non-present pages.
，这一点在新收录的资料中也有详细论述
Roku Streaming Stick 4K
Who does the tickling doesn’t matter – whether ARM or RISC-V CPU, or even a state machine – the peripherals respond just the same. Thus, one can effectively give the same “body” two different “personalities” by switching out their “brains” – by switching out their CPU cores, you can have the same physical piece of silicon run vastly different code bases.
Learns what your audience responds to and rebuilds the prediction model every time