diff -r 6470230caf2a -r 9ffa0d7ed932 src/os_cpu/solaris_x86/vm/thread_solaris_x86.cpp
--- a/src/os_cpu/solaris_x86/vm/thread_solaris_x86.cpp	Mon Jun 19 22:49:52 2017 +0000
+++ b/src/os_cpu/solaris_x86/vm/thread_solaris_x86.cpp	Mon Jun 26 02:04:40 2017 -0700
@@ -44,9 +44,8 @@
   assert(this->is_Java_thread(), "must be JavaThread");
   JavaThread* jt = (JavaThread *)this;
 
-  // last_Java_frame is always walkable and safe use it if we have it
-
-  if (jt->has_last_Java_frame()) {
+  // There is small window where last_Java_frame is not walkable or safe
+  if (jt->has_last_Java_frame() && jt->frame_anchor()->walkable()) {
     *fr_addr = jt->pd_last_frame();
     return true;
   }