erts: Pending signals can be for free processes

Since we no schedule free processes multiple times, pending signals can be from free as well as current processes.
kamalogudah · Mar 25, 2019 · ef8db12 · ef8db12
1 parent efff039
commit ef8db12
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/erts/emulator/beam/erl_proc_sig_queue.c b/erts/emulator/beam/erl_proc_sig_queue.c
@@ -611,7 +611,8 @@ proc_queue_signal(Process *c_p, Eterm pid, ErtsSignal *sig, int op)
 #endif
                 return 1;
             }
-            ASSERT(esdp->pending_signal.dbg_from == esdp->current_process);
+            ASSERT(esdp->pending_signal.dbg_from == esdp->current_process ||
+                   esdp->pending_signal.dbg_from == esdp->free_process);
             if (pend_sig != sig) {
                 /* Switch them and send previously pending signal instead */
                 Eterm pend_to = esdp->pending_signal.to;