diff -r 6470230caf2a -r 9ffa0d7ed932 src/os_cpu/linux_x86/vm/thread_linux_x86.cpp
--- a/src/os_cpu/linux_x86/vm/thread_linux_x86.cpp	Mon Jun 19 22:49:52 2017 +0000
+++ b/src/os_cpu/linux_x86/vm/thread_linux_x86.cpp	Mon Jun 26 02:04:40 2017 -0700
@@ -45,7 +45,7 @@
 
   // If we have a last_Java_frame, then we should use it even if
   // isInJava == true.  It should be more reliable than ucontext info.
-  if (jt->has_last_Java_frame()) {
+  if (jt->has_last_Java_frame() && jt->frame_anchor()->walkable()) {
     *fr_addr = jt->pd_last_frame();
     return true;
   }