@struct{intr_frame} passed to @func{syscall_handler} or
@func{page_fault}, respectively. If you verify user pointers before
accessing them (@pxref{Accessing User Memory}), these are the only cases
@struct{intr_frame} passed to @func{syscall_handler} or
@func{page_fault}, respectively. If you verify user pointers before
accessing them (@pxref{Accessing User Memory}), these are the only cases