Merge pull request #238 from jnpkrn/travis-issue-234

Continue with investigation of intermittent failures in Travis CI (#234)

.travis.yml

@@ -21,8 +21,10 @@ script: RPMBUILDOPTS_="--nodeps --define '_without_check 1'";
 after_failure:
         # keep an eye on issue #234 if it recidivates
         - for f in $(ls -1 /dev/shm/qb-test*); do ls -l "$f"; lsof -- "$f"; done
-        - mount | grep shm
-        - dh -h | grep shm
+        #- ls -l /var/run/*
+        - mount | grep -e /shm  #-e /var
+        - du -h | grep -e /shm  #-e /var
+        - lsblk -f
 
 notifications:
         irc: "irc.freenode.net#clusterlabs-dev"

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;
 	}
 

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,