The dar (Data address Register) contains the address that the processor tried to access, which then caused a page fault.
dar(数据地址寄存器)包含处理器尝试访问的地址，这一行为将引发页面错误。
2
What this does is provides the capability to allocate memory for a process from the memory module which contains the processor that caused the page fault.
这样做的目的是，在内存模块中为处理器上产生缺页的进程提供内存分配的功能。
3
If the problem does not happen on a single-processor system with JIT off, that might be an indication that JIT is not at fault.