#define SEL_NULL 0x00 /* Null selector. */
#define SEL_KCSEG 0x08 /* Kernel code selector. */
#define SEL_KDSEG 0x10 /* Kernel data selector. */
-#define SEL_UCSEG 0x18 /* Kernel code selector. */
-#define SEL_UDSEG 0x20 /* Kernel data selector. */
+#define SEL_UCSEG 0x1B /* User code selector. */
+#define SEL_UDSEG 0x23 /* User data selector. */
#define SEL_TSS 0x28 /* Task-state segment. */
#define SEL_CNT 6 /* Number of segments. */