Revert failed attempt at fixing invalid usage of vm_stack.

1 files changed, 9 insertions, 2 deletions

diff --git a/cont.c b/cont.c
index b83a0ad94c..0c8a68fe9a 100644
--- a/cont.c
+++ b/cont.c
@@ -268,6 +268,13 @@ fiber_status_set(rb_fiber_t *fib, enum fiber_status s)
     fib->status = s;
 }
 
+void
+rb_ec_set_vm_stack(rb_execution_context_t *ec, VALUE *stack, size_t size)
+{
+    ec->vm_stack = stack;
+    ec->vm_stack_size = size;
+}
+
 static inline void
 ec_switch(rb_thread_t *th, rb_fiber_t *fib)
 {
@@ -698,7 +705,7 @@ cont_capture(volatile int *volatile stat)
     cont->saved_vm_stack.ptr = ALLOC_N(VALUE, ec->vm_stack_size);
     MEMCPY(cont->saved_vm_stack.ptr, ec->vm_stack, VALUE, ec->vm_stack_size);
 #endif
-    rb_ec_clear_vm_stack(&cont->saved_ec);
+    rb_ec_set_vm_stack(&cont->saved_ec, NULL, 0);
     cont_save_machine_stack(th, cont);
 
     /* backup ensure_list to array for search in another context */
@@ -1786,7 +1793,7 @@ rb_fiber_close(rb_fiber_t *fib)
         }
     }
 
-    rb_ec_clear_vm_stack(ec);
+    rb_ec_set_vm_stack(ec, NULL, 0);
 
 #if !FIBER_USE_NATIVE
     /* should not mark machine stack any more */