Index: kernel/arch/ia32/include/mm/as.h
===================================================================
--- kernel/arch/ia32/include/mm/as.h	(revision dc0b96419120ee5e704d73292cca782d65f45781)
+++ kernel/arch/ia32/include/mm/as.h	(revision 8d6c1f139a0fd8ef52d018e1c68b0dcca5ec1ec9)
@@ -43,6 +43,4 @@
 #define USER_ADDRESS_SPACE_END_ARCH      UINT32_C(0x7fffffff)
 
-#define USTACK_ADDRESS_ARCH  (USER_ADDRESS_SPACE_END_ARCH - (PAGE_SIZE - 1))
-
 typedef struct {
 } as_arch_t;