On 09/11/2016 11:42, Andrew Haley wrote:

I'm seeing repeated segfaults in error traces. These seem to be caused by

void frame::print_on_error(outputStream* st, char* buf, int buflen, bool verbose) const {
    if (_cb != NULL) {
      if (Interpreter::contains(pc())) {
        Method* m = this->interpreter_frame_method();
        if (m != NULL) {
          m->name_and_sig_as_C_string(buf, buflen);
          st->print("j %s", buf);
          st->print("+%d", this->interpreter_frame_bci());
          ModuleEntry* module = m->method_holder()->module();
          if (module->is_named()) {
            module->name()->as_C_string(buf, buflen);
            st->print(" %s", buf);
            module->version()->as_C_string(buf, buflen);

 where module->version() returns NULL.