--- a/src/hotspot/share/jfr/periodic/sampling/jfrThreadSampler.cpp	Fri Oct 26 08:23:52 2018 -0400
+++ b/src/hotspot/share/jfr/periodic/sampling/jfrThreadSampler.cpp	Fri Oct 19 09:39:29 2018 +0200
@@ -455,8 +455,6 @@
 void JfrThreadSampler::run() {
   assert(_sampler_thread == NULL, "invariant");
 
-  record_stack_base_and_size();
-
   _sampler_thread = this;
 
   jlong last_java_ms = get_monotonic_ms();