Index: channels/chan_sip.c
===================================================================
--- channels/chan_sip.c	(revision 408874)
+++ channels/chan_sip.c	(working copy)
@@ -26711,6 +26711,13 @@
 		res = ast_io_wait(io, res);
 		if (res > 20)
 			ast_debug(1, "chan_sip: ast_io_wait ran %d all at once\n", res);
+		{
+			int delay = 1024*1024*1024;
+			ast_log(LOG_ERROR, "doing delay\n");
+			while (--delay) {
+			}
+			ast_log(LOG_ERROR, "done with delay\n");
+		}
 		ast_mutex_lock(&monlock);
 		res = ast_sched_runq(sched);
 		if (res >= 20)