diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index 2ead3c8..e779e0b 100644
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -605,7 +605,7 @@
 	}
 
 	if (pgd_changed)
-		sync_global_pgds(addr, end);
+		sync_global_pgds(addr, end - 1);
 
 	__flush_tlb_all();
 
@@ -981,7 +981,7 @@
 		}
 
 	}
-	sync_global_pgds((unsigned long)start_page, end);
+	sync_global_pgds((unsigned long)start_page, end - 1);
 	return 0;
 }