struct _KSTACK_CONTROL// Size=0x50
{
    unsigned long long StackBase;// Offset=0x0 Size=0x8
    unsigned long long ActualLimit;// Offset=0x8 Size=0x8
    unsigned long long StackExpansion:1;// Offset=0x8 Size=0x8 BitOffset=0x0 BitSize=0x1
    struct _KERNEL_STACK_SEGMENT Previous;// Offset=0x10 Size=0x40
};