src/os_cpu/solaris_x86/vm/thread_solaris_x86.cpp

*** 43,55 ****
  bool JavaThread::pd_get_top_frame(frame* fr_addr,
    void* ucontext, bool isInJava) {
    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()) {
      *fr_addr = jt->pd_last_frame();
      return true;
    }
  
    ucontext_t* uc = (ucontext_t*) ucontext;
--- 43,54 ----
  bool JavaThread::pd_get_top_frame(frame* fr_addr,
    void* ucontext, bool isInJava) {
    assert(this->is_Java_thread(), "must be JavaThread");
    JavaThread* jt = (JavaThread *)this;
  
!   // 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;
    }
  
    ucontext_t* uc = (ucontext_t*) ucontext;