atf_tc_fail_nonfatal
atf_tc_fail_nonfatal("%s: %s", #x, strerror(errno)); \
atf_tc_fail_nonfatal("invalid mode from mknod(2) (S_IFCHR)");
atf_tc_fail_nonfatal("invalid mode from mknod(2) (S_IFBLK)");
atf_tc_fail_nonfatal("invalid mode from mknod(2) (S_IFREG)");
atf_tc_fail_nonfatal("expected EPIPE but write(2) succeeded");
atf_tc_fail_nonfatal("SIGPIPE was not raised");