diff --git a/lib/ipc_socket.c b/lib/ipc_socket.c
index db8676b45..ae94d0ade 100644
--- a/lib/ipc_socket.c
+++ b/lib/ipc_socket.c
@@ -164,13 +164,18 @@ dgram_verify_msg_size(size_t max_msg_size)
 	char buf[max_msg_size];
 
 	if (socketpair(AF_UNIX, SOCK_DGRAM, 0, sockets) < 0) {
+		qb_util_perror(LOG_DEBUG, "error calling socketpair()");
 		goto cleanup_socks;
 	}
 
 	if (set_sock_size(sockets[0], max_msg_size) != 0) {
+		qb_util_log(LOG_DEBUG, "error set_sock_size(sockets[0],%#x)",
+			    max_msg_size);
 		goto cleanup_socks;
 	}
 	if (set_sock_size(sockets[1], max_msg_size) != 0) {
+		qb_util_log(LOG_DEBUG, "error set_sock_size(sockets[1],%#x)",
+			    max_msg_size);
 		goto cleanup_socks;
 	}
 
diff --git a/tests/check_ipc.c b/tests/check_ipc.c
index da8c96661..9aafc4178 100644
--- a/tests/check_ipc.c
+++ b/tests/check_ipc.c
@@ -1495,7 +1495,17 @@ static void test_max_dgram_size(void)
 	fail_if(init <= 0);
 	for (i = 0; i < 100; i++) {
 		int try = qb_ipcc_verify_dgram_max_msg_size(1000000);
+#if 0
 		ck_assert_int_eq(init, try);
+#else
+		/* extra troubleshooting, report also on i and errno variables;
+		   related: https://github.com/ClusterLabs/libqb/issues/234 */
+		if (init != try) {
+			ck_abort_msg("Assertion 'init==try' failed:"
+				     " init==%#x, try==%#x, i=%d, errno=%d",
+				     init, try, i, errno);
+		}
+#endif
 	}
 
 	qb_log_filter_ctl(QB_LOG_STDERR, QB_LOG_FILTER_ADD,