defer_signals
get_user_thread()->defer_signals++;
if (--thread->defer_signals == 0 && thread->pending_signals != 0) {
int32 defer_signals; // counter; 0 == signals allowed
if (thread->user_thread->defer_signals > 0
userThread->defer_signals
defer_signals();
defer_signals();
defer_signals();
defer_signals();
defer_signals();
defer_signals();
defer_signals();
printf("defer_signals: %" B_PRId32 "\n", t->defer_signals);