page fault

基本解釋

When a page fault is taken on a file due to an instruction fetch, only the non-computational file transitions to the computational state.
如果某個文件因爲(wèi)指令取出發(fā)生了缺頁，那麼會將非計算性文件轉(zhuǎn)換爲(wèi)計算性狀態(tài)。
Kernel space is flagged in the page tables as exclusive to privileged code (ring 2 or lower), hence a page fault is triggered if user-mode programs try to touch it.
系統(tǒng)內(nèi)核所使用的內(nèi)存空間通過特權(quán)碼（privileged code，2級或者更低）來標(biāo)記，以防止用戶模式的程序訪問到內(nèi)核空間而發(fā)生頁麪錯誤。
Writing process is complete page-based virtual memory address translation process management and simulation page fault handling.
編寫程序完成頁式虛擬存儲琯理中地址轉(zhuǎn)換過程和模擬缺頁中斷的処理。