src/hotspot/os/linux/os_linux.cpp

*** 703,712 ****
--- 703,714 ----
      while (osthread->get_state() == INITIALIZED) {
        sync->wait(Mutex::_no_safepoint_check_flag);
      }
    }
  
+   assert(osthread->pthread_id() != 0, "pthread_id was not set as expected");
+ 
    // call one more level start routine
    thread->call_run();
  
    // Note: at this point the thread object may already have deleted itself.
    // Prevent dereferencing it from here on out.