copy
//0x10 bytes (sizeof)
struct _MMCLONE_BLOCK
{
    struct _MMPTE ProtoPte;                                                 //0x0
    union
    {
        volatile ULONG CloneCommitCount;                                    //0x8
        struct _MI_CLONE_BLOCK_FLAGS u1;                                    //0x8
    };
    volatile ULONG CloneRefCount;                                           //0xc
};