1 files changed, 7 insertions, 0 deletions
diff --git a/insns.def b/insns.def
index 95414656bc..ba6f1d6627 100644
--- a/insns.def
+++ b/insns.def
@@ -1199,10 +1199,17 @@ onceinlinecache
 ()
 (VALUE val)
 {
+  retry:
     if (ic->ic_vmstat) {
 	val = ic->ic_value.value;
 	JUMP(dst);
     }
+    else if (ic->ic_value.value == Qundef)
+    {
+    	RUBY_VM_CHECK_INTS();
+    	rb_thread_schedule();
+	goto retry;
+    }
     else {
 	/* none */
 	ic->ic_value.value = Qundef;