unmapped memory

基本解釋

Dynamic stack growth is the only situation in which access to an unmapped memory region, shown in white above, might be valid.
動態(tài)棧增長是唯一的情況中，接觸到一個(gè)映射的內(nèi)存區(qū)域，在白色上面所示，可能是有效的。
Past that is unmapped memory -- memory for which no corresponding physical location has been assigned either in RAM or on disk.
該地址之后是未被映射的內(nèi)存 —— 用于在 RAM 或者硬盤中沒有分配相應(yīng)物理位置的內(nèi)存。
frenchen.blog.163.com
The processor also supports the memory translation process by tapping into the hypervisor (host kernel) when an unmapped memory location is accessed.
處理器也可以通過在訪問未經(jīng)映射的內(nèi)存位置時(shí)使用系統(tǒng)管理程序（主機(jī)內(nèi)核）來支持內(nèi)存轉(zhuǎn)換進(jìn)程。