141 		perror("malloc");  in child_thread()
233 		perror("setsockopt SO_RCVBUF");  in apply_rcvsnd_buf()
238 		perror("setsockopt SO_SNDBUF");  in apply_rcvsnd_buf()
275 		perror("setsockopt SO_RCVLOWAT");  in do_accept()
288 			perror("accept");  in do_accept()
295 			perror("pthread_create");  in do_accept()
360 			perror("socket");  in main()
371 			perror("setsockopt TCP_MAXSEG");  in main()
375 			perror("bind");  in main()
379 			perror("listen");  in main()
387 		perror("mmap");  in main()
393 		perror("socket");  in main()
402 		perror("setsockopt TCP_MAXSEG");  in main()
406 		perror("connect");  in main()
412 		perror("setsockopt SO_MAX_PACING_RATE");  in main()
416 		perror("setsockopt SO_ZEROCOPY, (-z option disabled)");  in main()