--- a/src/proc.cbc	Sat Feb 08 20:45:42 2020 +0900
+++ b/src/proc.cbc	Sun Feb 09 14:40:34 2020 +0900
@@ -175,13 +175,8 @@
 }
 
 
-void switchuvm_dummy(struct proc* proc)
+void switchuvm_dummy(struct Context* cbc_context, struct proc* proc)
 {
-    goto cbc_switchuvm_dummy(&proc->cbc_context, proc);
-}
-
-__ncode cbc_switchuvm_dummy(struct Context* cbc_context, struct proc* proc){
-
     struct vm* vm = createvm_impl(cbc_context);
     Gearef(cbc_context, vm)->vm = (union Data*) vm;
     Gearef(cbc_context, vm)->p = proc;
@@ -189,6 +184,7 @@
     goto meta(cbc_context, vm->switchuvm);
 }
 
+
 // Grow current process's memory by n bytes.
 // Return 0 on success, -1 on failure.
 int growproc(int n)
@@ -210,7 +206,7 @@
 
     proc->sz = sz;
     //switchuvm(proc);
-    switchuvm_dummy(proc);
+    switchuvm_dummy(&proc->cbc_context, proc);
     return 0;
 }