Min version	8.1 Update 1	10 Pre RTM
Max version		10 TH2
x86 offset offset:bitpos	Field Name
0x0000	uint8_t BucketIndex	uint8_t IsBucket
0x0000:0x01		uint8_t Spare0
0x0001	uint8_t IsBucket	uint8_t BucketIndex
0x0002	uint16_t SlotIndex	uint8_t SlotCount
0x0002	uint8_t AffinitySlotMask	uint8_t SlotIndex
0x0003	uint8_t Spare	uint8_t Spare1
0x0004	unsigned long AvailableSubsegmentCount
0x0008	struct _RTL_SRWLOCK Lock
0x000C	struct _LIST_ENTRY AvailableSubsegmentList
0x0014	struct _LIST_ENTRY FullSubsegmentList