diff --git a/libknet/tests/api_knet_handle_pmtud_set.c b/libknet/tests/api_knet_handle_pmtud_set.c
index 44043688..15b1ddde 100644
--- a/libknet/tests/api_knet_handle_pmtud_set.c
+++ b/libknet/tests/api_knet_handle_pmtud_set.c
@@ -1,226 +1,226 @@
 /*
  * Copyright (C) 2016-2019 Red Hat, Inc.  All rights reserved.
  *
  * Authors: Fabio M. Di Nitto <fabbione@kronosnet.org>
  *
  * This software licensed under GPL-2.0+
  */
 
 #include "config.h"
 
 #include <errno.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #include <unistd.h>
 
 #include "libknet.h"
 
 #include "internals.h"
 #include "test-common.h"
 
 static int private_data;
 
 static void sock_notify(void *pvt_data,
 			int datafd,
 			int8_t channel,
 			uint8_t tx_rx,
 			int error,
 			int errorno)
 {
 	return;
 }
 
 static void test(void)
 {
 	knet_handle_t knet_h;
 	int logfds[2];
 	unsigned int iface_mtu = 0, data_mtu;
 	int datafd = 0;
 	int8_t channel = 0;
 	struct sockaddr_storage lo;
 
 	if (make_local_sockaddr(&lo, 0) < 0) {
 		printf("Unable to convert loopback to sockaddr: %s\n", strerror(errno));
 		exit(FAIL);
 	}
 
 	printf("Test knet_handle_pmtud_set incorrect knet_h\n");
 
 	if ((!knet_handle_pmtud_set(NULL, iface_mtu)) || (errno != EINVAL)) {
 		printf("knet_handle_pmtud_set accepted invalid knet_h or returned incorrect error: %s\n", strerror(errno));
 		exit(FAIL);
 	}
 
 	setup_logpipes(logfds);
 
 	knet_h = knet_handle_start(logfds, KNET_LOG_DEBUG);
 
 	flush_logs(logfds[0], stdout);
 
 	iface_mtu = KNET_PMTUD_SIZE_V4 + 1;
 	printf("Test knet_handle_pmtud_set with wrong iface_mtu\n");
 	if ((!knet_handle_pmtud_set(knet_h, iface_mtu)) || (errno != EINVAL)) {
 		printf("knet_handle_pmtud_set accepted invalid data_mtu or returned incorrect error: %s\n", strerror(errno));
 		knet_handle_free(knet_h);
 		flush_logs(logfds[0], stdout);
 		close_logpipes(logfds);
 		exit(FAIL);
 	}
 
 	if (knet_handle_enable_sock_notify(knet_h, &private_data, sock_notify) < 0) {
 		printf("knet_handle_enable_sock_notify failed: %s\n", strerror(errno));
 		knet_handle_free(knet_h);
 		flush_logs(logfds[0], stdout);
 		close_logpipes(logfds);
 		exit(FAIL);
         }
 
 	datafd = 0;
 	channel = -1;
 
 	if (knet_handle_add_datafd(knet_h, &datafd, &channel) < 0) {
 		printf("knet_handle_add_datafd failed: %s\n", strerror(errno));
 		knet_handle_free(knet_h);
 		flush_logs(logfds[0], stdout);
 		close_logpipes(logfds);
 		exit(FAIL);
 	}
 
 	if (knet_host_add(knet_h, 1) < 0) {
 		printf("knet_host_add failed: %s\n", strerror(errno));
 		knet_handle_free(knet_h);
 		flush_logs(logfds[0], stdout);
 		close_logpipes(logfds);
 		exit(FAIL);
 	}
 
 	if (knet_link_set_config(knet_h, 1, 0, KNET_TRANSPORT_UDP, &lo, &lo, 0) < 0) {
 		printf("Unable to configure link: %s\n", strerror(errno));
 		knet_host_remove(knet_h, 1);
 		knet_handle_free(knet_h);
 		flush_logs(logfds[0], stdout);
 		close_logpipes(logfds);
 		exit(FAIL);
 	}
 
 	if (knet_link_set_pong_count(knet_h, 1, 0, 1) < 0) {
 		printf("knet_link_set_pong_count failed: %s\n", strerror(errno));
 		knet_host_remove(knet_h, 1);
 		knet_handle_free(knet_h);
 		flush_logs(logfds[0], stdout);
 		close_logpipes(logfds);
 		exit(FAIL);
 	}
 
 	if (knet_link_set_enable(knet_h, 1, 0, 1) < 0) {
 		printf("knet_link_set_enable failed: %s\n", strerror(errno));
 		knet_link_clear_config(knet_h, 1, 0);
 		knet_host_remove(knet_h, 1);
 		knet_handle_free(knet_h);
 		flush_logs(logfds[0], stdout);
 		close_logpipes(logfds);
 		exit(FAIL);
 	}
 
 	if (wait_for_host(knet_h, 1, 4, logfds[0], stdout) < 0) {
 		printf("timeout waiting for host to be reachable");
 		knet_link_set_enable(knet_h, 1, 0, 0);
 		knet_link_clear_config(knet_h, 1, 0);
 		knet_host_remove(knet_h, 1);
 		knet_handle_free(knet_h);
 		flush_logs(logfds[0], stdout);
 		close_logpipes(logfds);
 		exit(FAIL);
 	}
 
 	flush_logs(logfds[0], stdout);
 
 	if (knet_handle_pmtud_get(knet_h, &data_mtu) < 0) {
 		printf("knet_handle_pmtud_get failed error: %s\n", strerror(errno));
 		knet_link_set_enable(knet_h, 1, 0, 0);
 		knet_link_clear_config(knet_h, 1, 0);
 		knet_host_remove(knet_h, 1);
 		knet_handle_free(knet_h);
 		flush_logs(logfds[0], stdout);
 		close_logpipes(logfds);
 		exit(FAIL);
 	}
 
 	/*
 	 * 28 = IP (20) + UDP (8)
 	 */
 	iface_mtu = data_mtu + 28 + KNET_HEADER_ALL_SIZE - 64;
 	printf("Test knet_handle_pmtud_set with iface_mtu %u\n", iface_mtu);
 
 	if (knet_handle_pmtud_set(knet_h, iface_mtu) < 0) {
 		printf("knet_handle_pmtud_set failed error: %s\n", strerror(errno));
 		knet_link_set_enable(knet_h, 1, 0, 0);
 		knet_link_clear_config(knet_h, 1, 0);
 		knet_host_remove(knet_h, 1);
 		knet_handle_free(knet_h);
 		flush_logs(logfds[0], stdout);
 		close_logpipes(logfds);
 		exit(FAIL);
 	}
 
 	/*
 	 * wait for PMTUd to pick up the change
 	 */
-	sleep(1);
+	test_sleep(knet_h, 1);
 	flush_logs(logfds[0], stdout);
 
 	if (knet_h->data_mtu != data_mtu - 64) {
 		printf("knet_handle_pmtud_set failed to set the value\n");
 		knet_link_set_enable(knet_h, 1, 0, 0);
 		knet_link_clear_config(knet_h, 1, 0);
 		knet_host_remove(knet_h, 1);
 		knet_handle_free(knet_h);
 		flush_logs(logfds[0], stdout);
 		close_logpipes(logfds);
 		exit(FAIL);
 	}
 
 	printf("Test knet_handle_pmtud_set with iface_mtu 0\n");
 	if (knet_handle_pmtud_set(knet_h, 0) < 0) {
 		printf("knet_handle_pmtud_set failed error: %s\n", strerror(errno));
 		knet_link_set_enable(knet_h, 1, 0, 0);
 		knet_link_clear_config(knet_h, 1, 0);
 		knet_host_remove(knet_h, 1);
 		knet_handle_free(knet_h);
 		flush_logs(logfds[0], stdout);
 		close_logpipes(logfds);
 		exit(FAIL);
 	}
 
 	/*
 	 * wait for PMTUd to pick up the change
 	 */
-	sleep(2);
+	test_sleep(knet_h, 1);
 	flush_logs(logfds[0], stdout);
 
 	if (knet_h->data_mtu != data_mtu) {
-		printf("knet_handle_pmtud_set failed to redetect MTU\n");
+		printf("knet_handle_pmtud_set failed to redetect MTU: detected mtu: %u data_mtu: %u \n", knet_h->data_mtu, data_mtu);
 		knet_link_set_enable(knet_h, 1, 0, 0);
 		knet_link_clear_config(knet_h, 1, 0);
 		knet_host_remove(knet_h, 1);
 		knet_handle_free(knet_h);
 		flush_logs(logfds[0], stdout);
 		close_logpipes(logfds);
 		exit(FAIL);
 	}
 
 	knet_link_set_enable(knet_h, 1, 0, 0);
 	knet_link_clear_config(knet_h, 1, 0);
 	knet_host_remove(knet_h, 1);
 	knet_handle_free(knet_h);
 	flush_logs(logfds[0], stdout);
 	close_logpipes(logfds);
 }
 
 int main(int argc, char *argv[])
 {
 	test();
 
 	return PASS;
 }
diff --git a/libknet/tests/api_knet_link_set_enable.c b/libknet/tests/api_knet_link_set_enable.c
index 17e6e031..fc233ea3 100644
--- a/libknet/tests/api_knet_link_set_enable.c
+++ b/libknet/tests/api_knet_link_set_enable.c
@@ -1,345 +1,345 @@
 /*
  * Copyright (C) 2016-2019 Red Hat, Inc.  All rights reserved.
  *
  * Authors: Fabio M. Di Nitto <fabbione@kronosnet.org>
  *
  * This software licensed under GPL-2.0+
  */
 
 #include "config.h"
 
 #include <errno.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #include <unistd.h>
 
 #include "libknet.h"
 
 #include "internals.h"
 #include "link.h"
 #include "netutils.h"
 #include "test-common.h"
 
 static void test_udp(void)
 {
 	knet_handle_t knet_h;
 	int logfds[2];
 	struct sockaddr_storage src, dst;
 
 	if (make_local_sockaddr(&src, 0) < 0) {
 		printf("Unable to convert src to sockaddr: %s\n", strerror(errno));
 		exit(FAIL);
 	}
 
 	if (make_local_sockaddr(&dst, 1) < 0) {
 		printf("Unable to convert dst to sockaddr: %s\n", strerror(errno));
 		exit(FAIL);
 	}
 
 	printf("Test knet_link_set_enable incorrect knet_h\n");
 
 	if ((!knet_link_set_enable(NULL, 1, 0, 1)) || (errno != EINVAL)) {
 		printf("knet_link_set_enable accepted invalid knet_h or returned incorrect error: %s\n", strerror(errno));
 		exit(FAIL);
 	}
 
 	setup_logpipes(logfds);
 
 	knet_h = knet_handle_start(logfds, KNET_LOG_DEBUG);
 
 	printf("Test knet_link_set_enable with unconfigured host_id\n");
 
 	if ((!knet_link_set_enable(knet_h, 1, 0, 1)) || (errno != EINVAL)) {
 		printf("knet_link_set_enable accepted invalid host_id or returned incorrect error: %s\n", strerror(errno));
 		knet_handle_free(knet_h);
 		flush_logs(logfds[0], stdout);
 		close_logpipes(logfds);
 		exit(FAIL);
 	}
 
 	flush_logs(logfds[0], stdout);
 
 	printf("Test knet_link_set_enable with incorrect linkid\n");
 
 	if (knet_host_add(knet_h, 1) < 0) {
 		printf("Unable to add host_id 1: %s\n", strerror(errno));
 		knet_handle_free(knet_h);
 		flush_logs(logfds[0], stdout);
 		close_logpipes(logfds);
 		exit(FAIL);
 	}
 
 	if ((!knet_link_set_enable(knet_h, 1, KNET_MAX_LINK, 1)) || (errno != EINVAL)) {
 		printf("knet_link_set_enable accepted invalid linkid or returned incorrect error: %s\n", strerror(errno));
 		knet_host_remove(knet_h, 1);
 		knet_handle_free(knet_h);
 		flush_logs(logfds[0], stdout);
 		close_logpipes(logfds);
 		exit(FAIL);
 	}
 
 	flush_logs(logfds[0], stdout);
 
 	printf("Test knet_link_set_enable with unconfigured link\n");
 
 	if ((!knet_link_set_enable(knet_h, 1, 0, 1)) || (errno != EINVAL)) {
 		printf("knet_link_set_enable accepted unconfigured link or returned incorrect error: %s\n", strerror(errno));
 		knet_host_remove(knet_h, 1);
 		knet_handle_free(knet_h);
 		flush_logs(logfds[0], stdout);
 		close_logpipes(logfds);
 		exit(FAIL);
 	}
 
 	flush_logs(logfds[0], stdout);
 
 	printf("Test knet_link_set_enable with incorrect values\n");
 
 	if (knet_link_set_config(knet_h, 1, 0, KNET_TRANSPORT_UDP, &src, &dst, 0) < 0) {
 		printf("Unable to configure link: %s\n", strerror(errno));
 		knet_host_remove(knet_h, 1);
 		knet_handle_free(knet_h);
 		flush_logs(logfds[0], stdout);
 		close_logpipes(logfds);
 		exit(FAIL);
 	}
 
 	if ((!knet_link_set_enable(knet_h, 1, 0, 2)) || (errno != EINVAL)) {
 		printf("knet_link_set_enable accepted incorrect value for enabled or returned incorrect error: %s\n", strerror(errno));
 		knet_link_clear_config(knet_h, 1, 0);
 		knet_host_remove(knet_h, 1);
 		knet_handle_free(knet_h);
 		flush_logs(logfds[0], stdout);
 		close_logpipes(logfds);
 		exit(FAIL);
 	}
 
 	flush_logs(logfds[0], stdout);
 
 	printf("Test knet_link_set_enable with correct values (1)\n");
 
 	if (knet_link_set_enable(knet_h, 1, 0, 1) < 0) {
 		printf("knet_link_set_enable failed: %s\n", strerror(errno));
 		knet_link_clear_config(knet_h, 1, 0);
 		knet_host_remove(knet_h, 1);
 		knet_handle_free(knet_h);
 		flush_logs(logfds[0], stdout);
 		close_logpipes(logfds);
 		exit(FAIL);
 	}
 
 	if (knet_h->host_index[1]->link[0].status.enabled != 1) {
 		printf("knet_link_set_enable failed to set correct values\n");
 		knet_link_set_enable(knet_h, 1, 0, 0);
 		knet_link_clear_config(knet_h, 1, 0);
 		knet_host_remove(knet_h, 1);
 		knet_handle_free(knet_h);
 		flush_logs(logfds[0], stdout);
 		close_logpipes(logfds);
 		exit(FAIL);
 	}
 
 	printf("Test knet_link_set_enable with correct values (0)\n");
 
 	if (knet_link_set_enable(knet_h, 1, 0, 0) < 0) {
 		printf("knet_link_set_enable failed: %s\n", strerror(errno));
 		knet_link_set_enable(knet_h, 1, 0, 0);
 		knet_link_clear_config(knet_h, 1, 0);
 		knet_host_remove(knet_h, 1);
 		knet_handle_free(knet_h);
 		flush_logs(logfds[0], stdout);
 		close_logpipes(logfds);
 		exit(FAIL);
 	}
 
 	if (knet_h->host_index[1]->link[0].status.enabled != 0) {
 		printf("knet_link_set_enable failed to set correct values\n");
 		knet_link_clear_config(knet_h, 1, 0);
 		knet_host_remove(knet_h, 1);
 		knet_handle_free(knet_h);
 		flush_logs(logfds[0], stdout);
 		close_logpipes(logfds);
 		exit(FAIL);
 	}
 
 	knet_link_set_enable(knet_h, 1, 0, 0);
 	knet_link_clear_config(knet_h, 1, 0);
 	knet_host_remove(knet_h, 1);
 	knet_handle_free(knet_h);
 	flush_logs(logfds[0], stdout);
 	close_logpipes(logfds);
 }
 
 #ifdef HAVE_NETINET_SCTP_H
 static void test_sctp(void)
 {
 	knet_handle_t knet_h;
 	int logfds[2];
 	struct sockaddr_storage src, dst;
 
 	if (make_local_sockaddr(&src, 0) < 0) {
 		printf("Unable to convert src to sockaddr: %s\n", strerror(errno));
 		exit(FAIL);
 	}
 
 	if (make_local_sockaddr(&dst, 1) < 0) {
 		printf("Unable to convert dst to sockaddr: %s\n", strerror(errno));
 		exit(FAIL);
 	}
 
 	printf("Test knet_link_set_enable incorrect knet_h\n");
 
 	if ((!knet_link_set_enable(NULL, 1, 0, 1)) || (errno != EINVAL)) {
 		printf("knet_link_set_enable accepted invalid knet_h or returned incorrect error: %s\n", strerror(errno));
 		exit(FAIL);
 	}
 
 	setup_logpipes(logfds);
 
 	knet_h = knet_handle_start(logfds, KNET_LOG_DEBUG);
 
 	printf("Test knet_link_set_enable with unconfigured host_id\n");
 
 	if ((!knet_link_set_enable(knet_h, 1, 0, 1)) || (errno != EINVAL)) {
 		printf("knet_link_set_enable accepted invalid host_id or returned incorrect error: %s\n", strerror(errno));
 		knet_handle_free(knet_h);
 		flush_logs(logfds[0], stdout);
 		close_logpipes(logfds);
 		exit(FAIL);
 	}
 
 	flush_logs(logfds[0], stdout);
 
 	printf("Test knet_link_set_enable with incorrect linkid\n");
 
 	if (knet_host_add(knet_h, 1) < 0) {
 		printf("Unable to add host_id 1: %s\n", strerror(errno));
 		knet_handle_free(knet_h);
 		flush_logs(logfds[0], stdout);
 		close_logpipes(logfds);
 		exit(FAIL);
 	}
 
 	if ((!knet_link_set_enable(knet_h, 1, KNET_MAX_LINK, 1)) || (errno != EINVAL)) {
 		printf("knet_link_set_enable accepted invalid linkid or returned incorrect error: %s\n", strerror(errno));
 		knet_host_remove(knet_h, 1);
 		knet_handle_free(knet_h);
 		flush_logs(logfds[0], stdout);
 		close_logpipes(logfds);
 		exit(FAIL);
 	}
 
 	flush_logs(logfds[0], stdout);
 
 	printf("Test knet_link_set_enable with unconfigured link\n");
 
 	if ((!knet_link_set_enable(knet_h, 1, 0, 1)) || (errno != EINVAL)) {
 		printf("knet_link_set_enable accepted unconfigured link or returned incorrect error: %s\n", strerror(errno));
 		knet_host_remove(knet_h, 1);
 		knet_handle_free(knet_h);
 		flush_logs(logfds[0], stdout);
 		close_logpipes(logfds);
 		exit(FAIL);
 	}
 
 	flush_logs(logfds[0], stdout);
 
 	printf("Test knet_link_set_enable with incorrect values\n");
 
 	if (knet_link_set_config(knet_h, 1, 0, KNET_TRANSPORT_SCTP, &src, &dst, 0) < 0) {
 		int exit_status = errno == EPROTONOSUPPORT ? SKIP : FAIL;
 		printf("Unable to configure link: %s\n", strerror(errno));
 		knet_host_remove(knet_h, 1);
 		knet_handle_free(knet_h);
 		flush_logs(logfds[0], stdout);
 		close_logpipes(logfds);
 		exit(exit_status);
 	}
 
 	if ((!knet_link_set_enable(knet_h, 1, 0, 2)) || (errno != EINVAL)) {
 		printf("knet_link_set_enable accepted incorrect value for enabled or returned incorrect error: %s\n", strerror(errno));
 		knet_link_clear_config(knet_h, 1, 0);
 		knet_host_remove(knet_h, 1);
 		knet_handle_free(knet_h);
 		flush_logs(logfds[0], stdout);
 		close_logpipes(logfds);
 		exit(FAIL);
 	}
 
 	flush_logs(logfds[0], stdout);
 
 	printf("Test knet_link_set_enable with correct values (1)\n");
 
 	if (knet_link_set_enable(knet_h, 1, 0, 1) < 0) {
 		printf("knet_link_set_enable failed: %s\n", strerror(errno));
 		knet_link_clear_config(knet_h, 1, 0);
 		knet_host_remove(knet_h, 1);
 		knet_handle_free(knet_h);
 		flush_logs(logfds[0], stdout);
 		close_logpipes(logfds);
 		exit(FAIL);
 	}
 
 	if (knet_h->host_index[1]->link[0].status.enabled != 1) {
 		printf("knet_link_set_enable failed to set correct values\n");
 		knet_link_set_enable(knet_h, 1, 0, 0);
 		knet_link_clear_config(knet_h, 1, 0);
 		knet_host_remove(knet_h, 1);
 		knet_handle_free(knet_h);
 		flush_logs(logfds[0], stdout);
 		close_logpipes(logfds);
 		exit(FAIL);
 	}
 
 	printf("Wait 2 seconds for sockets to connect\n");
-	sleep(2);
+	test_sleep(knet_h, 2);
 
 	printf("Test knet_link_set_enable with correct values (0)\n");
 
 	if (knet_link_set_enable(knet_h, 1, 0, 0) < 0) {
 		printf("knet_link_set_enable failed: %s\n", strerror(errno));
 		knet_link_set_enable(knet_h, 1, 0, 0);
 		knet_link_clear_config(knet_h, 1, 0);
 		knet_host_remove(knet_h, 1);
 		knet_handle_free(knet_h);
 		flush_logs(logfds[0], stdout);
 		close_logpipes(logfds);
 		exit(FAIL);
 	}
 
 	if (knet_h->host_index[1]->link[0].status.enabled != 0) {
 		printf("knet_link_set_enable failed to set correct values\n");
 		knet_link_clear_config(knet_h, 1, 0);
 		knet_host_remove(knet_h, 1);
 		knet_handle_free(knet_h);
 		flush_logs(logfds[0], stdout);
 		close_logpipes(logfds);
 		exit(FAIL);
 	}
 
 	knet_link_set_enable(knet_h, 1, 0, 0);
 	knet_link_clear_config(knet_h, 1, 0);
 	knet_host_remove(knet_h, 1);
 	knet_handle_free(knet_h);
 	flush_logs(logfds[0], stdout);
 	close_logpipes(logfds);
 }
 #endif
 
 int main(int argc, char *argv[])
 {
 	printf("Testing with UDP\n");
 
 	test_udp();
 
 #ifdef HAVE_NETINET_SCTP_H
 	printf("Testing with SCTP\n");
 
 	test_sctp();
 #else
 	printf("Skipping SCTP test. Protocol not supported in this build\n");
 #endif
 
 	return PASS;
 }
diff --git a/libknet/tests/test-common.c b/libknet/tests/test-common.c
index 4bf58c61..617addca 100644
--- a/libknet/tests/test-common.c
+++ b/libknet/tests/test-common.c
@@ -1,526 +1,537 @@
 /*
  * Copyright (C) 2016-2019 Red Hat, Inc.  All rights reserved.
  *
  * Author: Fabio M. Di Nitto <fabbione@kronosnet.org>
  *
  * This software licensed under GPL-2.0+
  */
 
 #include "config.h"
 
 #include <errno.h>
 #include <stdio.h>
 #include <string.h>
 #include <unistd.h>
 #include <stdlib.h>
 #include <sys/types.h>
 #include <sys/wait.h>
 #include <fcntl.h>
 #include <pthread.h>
 #include <sys/select.h>
 
 #include "libknet.h"
 #include "test-common.h"
 
 static pthread_mutex_t log_mutex = PTHREAD_MUTEX_INITIALIZER;
 static int log_init = 0;
 static pthread_mutex_t log_thread_mutex = PTHREAD_MUTEX_INITIALIZER;
 static pthread_t log_thread;
 static int log_thread_init = 0;
 static int log_fds[2];
 struct log_thread_data {
 	int logfd;
 	FILE *std;
 };
 static struct log_thread_data data;
 static pthread_mutex_t shutdown_mutex = PTHREAD_MUTEX_INITIALIZER;
 static int stop_in_progress = 0;
 
 static int _read_pipe(int fd, char **file, size_t *length)
 {
 	char buf[4096];
 	int n;
 	int done = 0;
 
 	*file = NULL;
 	*length = 0;
 
 	memset(buf, 0, sizeof(buf));
 
 	while (!done) {
 
 		n = read(fd, buf, sizeof(buf));
 
 		if (n < 0) {
 			if (errno == EINTR)
 				continue;
 
 			if (*file)
 				free(*file);
 
 			return n;
 		}
 
 		if (n == 0 && (!*length))
 			return 0;
 
 		if (n == 0)
 			done = 1;
 
 		if (*file)
 			*file = realloc(*file, (*length) + n + done);
 		else
 			*file = malloc(n + done);
 
 		if (!*file)
 			return -1;
 
 		memmove((*file) + (*length), buf, n);
 		*length += (done + n);
 	}
 
 	/* Null terminator */
 	(*file)[(*length) - 1] = 0;
 
 	return 0;
 }
 
 int execute_shell(const char *command, char **error_string)
 {
 	pid_t pid;
 	int status, err = 0;
 	int fd[2];
 	size_t size = 0;
 
 	if ((command == NULL) || (!error_string)) {
 		errno = EINVAL;
 		return FAIL;
 	}
 
 	*error_string = NULL;
 
 	err = pipe(fd);
 	if (err)
 		goto out_clean;
 
 	pid = fork();
 	if (pid < 0) {
 		err = pid;
 		goto out_clean;
 	}
 
 	if (pid) { /* parent */
 
 		close(fd[1]);
 		err = _read_pipe(fd[0], error_string, &size);
 		if (err)
 			goto out_clean0;
 
 		waitpid(pid, &status, 0);
 		if (!WIFEXITED(status)) {
 			err = -1;
 			goto out_clean0;
 		}
 		if (WIFEXITED(status) && WEXITSTATUS(status) != 0) {
 			err = WEXITSTATUS(status);
 			goto out_clean0;
 		}
 		goto out_clean0;
 	} else { /* child */
 		close(0);
 		close(1);
 		close(2);
 
 		close(fd[0]);
 		dup2(fd[1], 1);
 		dup2(fd[1], 2);
 		close(fd[1]);
 
 		execlp("/bin/sh", "/bin/sh", "-c", command, NULL);
 		exit(FAIL);
 	}
 
 out_clean:
 	close(fd[1]);
 out_clean0:
 	close(fd[0]);
 
 	return err;
 }
 
 int is_memcheck(void)
 {
 	char *val;
 
 	val = getenv("KNETMEMCHECK");
 
 	if (val) {
 		if (!strncmp(val, "yes", 3)) {
 			return 1;
 		}
 	}
 
 	return 0;
 }
 
 int is_helgrind(void)
 {
 	char *val;
 
 	val = getenv("KNETHELGRIND");
 
 	if (val) {
 		if (!strncmp(val, "yes", 3)) {
 			return 1;
 		}
 	}
 
 	return 0;
 }
 
 void set_scheduler(int policy)
 {
 	struct sched_param sched_param;
 	int err;
 
 	err = sched_get_priority_max(policy);
 	if (err < 0) {
 		printf("Could not get maximum scheduler priority\n");
 		exit(FAIL);
 	}
 	sched_param.sched_priority = err;
 	err = sched_setscheduler(0, policy, &sched_param);
 	if (err < 0) {
 		printf("Could not set priority\n");
 		exit(FAIL);
 	}
 	return;
 }
 
 int setup_logpipes(int *logfds)
 {
 	if (pipe2(logfds, O_CLOEXEC | O_NONBLOCK) < 0) {
 		printf("Unable to setup logging pipe\n");
 		exit(FAIL);
 	}
 
 	return PASS;
 }
 
 void close_logpipes(int *logfds)
 {
 	close(logfds[0]);
 	logfds[0] = 0;
 	close(logfds[1]);
 	logfds[1] = 0;
 }
 
 void flush_logs(int logfd, FILE *std)
 {
 	struct knet_log_msg msg;
 	int len;
 
 	while (1) {
 		len = read(logfd, &msg, sizeof(msg));
 		if (len != sizeof(msg)) {
 			/*
 			 * clear errno to avoid incorrect propagation
 			 */
 			errno = 0;
 			return;
 		}
 
 		msg.msg[sizeof(msg.msg) - 1] = 0;
 
 		fprintf(std, "[knet]: [%s] %s: %.*s\n",
 			knet_log_get_loglevel_name(msg.msglevel),
 			knet_log_get_subsystem_name(msg.subsystem),
 			KNET_MAX_LOG_MSG_SIZE, msg.msg);
 	}
 }
 
 static void *_logthread(void *args)
 {
 	while (1) {
 		int num;
 		struct timeval tv = { 60, 0 };
 		fd_set rfds;
 
 		FD_ZERO(&rfds);
 		FD_SET(data.logfd, &rfds);
 
 		num = select(FD_SETSIZE, &rfds, NULL, NULL, &tv);
 		if (num < 0) {
 			fprintf(data.std, "Unable select over logfd!\nHALTING LOGTHREAD!\n");
 			return NULL;
 		}
 		if (num == 0) {
 			fprintf(data.std, "[knet]: No logs in the last 60 seconds\n");
 			continue;
 		}
 		if (FD_ISSET(data.logfd, &rfds)) {
 			flush_logs(data.logfd, data.std);
 		}
 	}
 }
 
 int start_logthread(int logfd, FILE *std)
 {
 	int savederrno = 0;
 
 	savederrno = pthread_mutex_lock(&log_thread_mutex);
 	if (savederrno) {
 		printf("Unable to get log_thread mutex lock\n");
 		return -1;
 	}
 
 	if (!log_thread_init) {
 		data.logfd = logfd;
 		data.std = std;
 
 		savederrno = pthread_create(&log_thread, 0, _logthread, NULL);
 		if (savederrno) {
 			printf("Unable to start logging thread: %s\n", strerror(savederrno));
 			pthread_mutex_unlock(&log_thread_mutex);
 			return -1;
 		}
 		log_thread_init = 1;
 	}
 
 	pthread_mutex_unlock(&log_thread_mutex);
 	return 0;
 }
 
 int stop_logthread(void)
 {
 	int savederrno = 0;
 	void *retval;
 
 	savederrno = pthread_mutex_lock(&log_thread_mutex);
 	if (savederrno) {
 		printf("Unable to get log_thread mutex lock\n");
 		return -1;
 	}
 
 	if (log_thread_init) {
 		pthread_cancel(log_thread);
 		pthread_join(log_thread, &retval);
 		log_thread_init = 0;
 	}
 
 	pthread_mutex_unlock(&log_thread_mutex);
 	return 0;
 }
 
 static void stop_logging(void)
 {
 	stop_logthread();
 	flush_logs(log_fds[0], stdout);
 	close_logpipes(log_fds);
 }
 
 int start_logging(FILE *std)
 {
 	int savederrno = 0;
 
 	savederrno = pthread_mutex_lock(&log_mutex);
 	if (savederrno) {
 		printf("Unable to get log_mutex lock\n");
 		return -1;
 	}
 
 	if (!log_init) {
 		setup_logpipes(log_fds);
 
 		if (atexit(&stop_logging) != 0) {
 			printf("Unable to register atexit handler to stop logging: %s\n",
 			       strerror(errno));
 			exit(FAIL);
 		}
 
 		if (start_logthread(log_fds[0], std) < 0) {
 			exit(FAIL);
 		}
 
 		log_init = 1;
 	}
 
 	pthread_mutex_unlock(&log_mutex);
 
 	return log_fds[1];
 }
 
 knet_handle_t knet_handle_start(int logfds[2], uint8_t log_level)
 {
 	knet_handle_t knet_h = knet_handle_new_ex(1, logfds[1], log_level, 0);
 
 	if (knet_h) {
 		return knet_h;
 	} else {
 		printf("knet_handle_new failed: %s\n", strerror(errno));
 		flush_logs(logfds[0], stdout);
 		close_logpipes(logfds);
 		exit(FAIL);
 	}
 }
 
 int knet_handle_stop(knet_handle_t knet_h)
 {
 	int savederrno;
 	size_t i, j;
 	knet_node_id_t host_ids[KNET_MAX_HOST];
 	uint8_t link_ids[KNET_MAX_LINK];
 	size_t host_ids_entries = 0, link_ids_entries = 0;
 	struct knet_link_status status;
 
 	savederrno = pthread_mutex_lock(&shutdown_mutex);
 	if (savederrno) {
 		printf("Unable to get shutdown mutex lock\n");
 		return -1;
 	}
 
 	if (stop_in_progress) {
 		pthread_mutex_unlock(&shutdown_mutex);
 		errno = EINVAL;
 		return -1;
 	}
 
 	stop_in_progress = 1;
 
 	pthread_mutex_unlock(&shutdown_mutex);
 
 	if (!knet_h) {
 		errno = EINVAL;
 		return -1;
 	}
 
 	if (knet_handle_setfwd(knet_h, 0) < 0) {
 		printf("knet_handle_setfwd failed: %s\n", strerror(errno));
 		return -1;
 	}
 
 	if (knet_host_get_host_list(knet_h, host_ids, &host_ids_entries) < 0) {
 		printf("knet_host_get_host_list failed: %s\n", strerror(errno));
 		return -1;
 	}
 
 	for (i = 0; i < host_ids_entries; i++) {
 		if (knet_link_get_link_list(knet_h, host_ids[i], link_ids, &link_ids_entries)) {
 			printf("knet_link_get_link_list failed: %s\n", strerror(errno));
 			return -1;
 		}
 		for (j = 0; j < link_ids_entries; j++) {
 			if (knet_link_get_status(knet_h, host_ids[i], link_ids[j], &status, sizeof(struct knet_link_status))) {
 				printf("knet_link_get_status failed: %s\n", strerror(errno));
 				return -1;
 			}
 			if (status.enabled) {
 				if (knet_link_set_enable(knet_h, host_ids[i], j, 0)) {
 					printf("knet_link_set_enable failed: %s\n", strerror(errno));
 					return -1;
 				}
 			}
 			knet_link_clear_config(knet_h, host_ids[i], j);
 		}
 		if (knet_host_remove(knet_h, host_ids[i]) < 0) {
 			printf("knet_host_remove failed: %s\n", strerror(errno));
 			return -1;
 		}
 	}
 
 	if (knet_handle_free(knet_h)) {
 		printf("knet_handle_free failed: %s\n", strerror(errno));
 		return -1;
 	}
 	return 0;
 }
 
 static int _make_local_sockaddr(struct sockaddr_storage *lo, uint16_t offset, int family)
 {
 	uint32_t port;
 	char portstr[32];
 
 	/* Use the pid if we can. but makes sure its in a sensible range */
 	port = (uint32_t)getpid() + offset;
 	if (port < 1024) {
 		port += 1024;
 	}
 	if (port > 65536) {
 		port = port & 0xFFFF;
 	}
 	sprintf(portstr, "%u", port);
 	memset(lo, 0, sizeof(struct sockaddr_storage));
 	printf("Using port %u\n", port);
 
 	if (family == AF_INET6) {
 		return knet_strtoaddr("::1", portstr, lo, sizeof(struct sockaddr_storage));
 	}
 	return knet_strtoaddr("127.0.0.1", portstr, lo, sizeof(struct sockaddr_storage));
 }
 
 int make_local_sockaddr(struct sockaddr_storage *lo, uint16_t offset)
 {
 	return _make_local_sockaddr(lo, offset, AF_INET);
 }
 
 int make_local_sockaddr6(struct sockaddr_storage *lo, uint16_t offset)
 {
 	return _make_local_sockaddr(lo, offset, AF_INET6);
 }
 
+void test_sleep(knet_handle_t knet_h, int seconds)
+{
+	if (is_memcheck() || is_helgrind()) {
+		printf("Test suite is running under valgrind, adjusting sleep timers\n");
+		seconds = seconds * 16;
+	}
+	sleep(seconds);
+}
+
 int wait_for_host(knet_handle_t knet_h, uint16_t host_id, int seconds, int logfd, FILE *std)
 {
 	int i = 0;
 
 	if (is_memcheck() || is_helgrind()) {
 		printf("Test suite is running under valgrind, adjusting wait_for_host timeout\n");
 		seconds = seconds * 16;
 	}
 
 	while (i < seconds) {
 		flush_logs(logfd, std);
 		if (knet_h->host_index[host_id]->status.reachable == 1) {
+			printf("Waiting for host to settle\n");
+			test_sleep(knet_h, 1);
 			return 0;
 		}
 		printf("waiting host %u to be reachable for %d more seconds\n", host_id, seconds - i);
 		sleep(1);
 		i++;
 	}
 	return -1;
 }
 
 int wait_for_packet(knet_handle_t knet_h, int seconds, int datafd, int logfd, FILE *std)
 {
 	fd_set rfds;
 	struct timeval tv;
 	int err = 0, i = 0;
 
 	if (is_memcheck() || is_helgrind()) {
 		printf("Test suite is running under valgrind, adjusting wait_for_packet timeout\n");
 		seconds = seconds * 16;
 	}
 
 try_again:
 	FD_ZERO(&rfds);
 	FD_SET(datafd, &rfds);
 
 	tv.tv_sec = 1;
 	tv.tv_usec = 0;
 
 	err = select(datafd+1, &rfds, NULL, NULL, &tv);
 	/*
 	 * on slow arches the first call to select can return 0.
 	 * pick an arbitrary 10 times loop (multiplied by waiting seconds)
 	 * before failing.
 	 */
 	if ((!err) && (i < seconds)) {
 		flush_logs(logfd, std);
 		i++;
 		goto try_again;
 	}
 	if ((err > 0) && (FD_ISSET(datafd, &rfds))) {
 		return 0;
 	}
 
 	return -1;
 }
diff --git a/libknet/tests/test-common.h b/libknet/tests/test-common.h
index f1375ab8..963c4382 100644
--- a/libknet/tests/test-common.h
+++ b/libknet/tests/test-common.h
@@ -1,75 +1,76 @@
 /*
  * Copyright (C) 2016-2019 Red Hat, Inc.  All rights reserved.
  *
  * Authors: Fabio M. Di Nitto <fabbione@kronosnet.org>
  *
  * This software licensed under GPL-2.0+
  */
 
 #ifndef __KNET_TEST_COMMON_H__
 #define __KNET_TEST_COMMON_H__
 
 #include "internals.h"
 #include <sched.h>
 
 /*
  * error codes from automake test-driver
  */
 
 #define PASS	0
 #define SKIP	77
 #define ERROR	99
 #define FAIL	-1
 
 /* For *BSD compatibility */
 #ifndef s6_addr16
 #define s6_addr8  __u6_addr.__u6_addr8
 #define s6_addr16 __u6_addr.__u6_addr16
 #define s6_addr32 __u6_addr.__u6_addr32
 #endif
 
 /*
  * common facilities
  */
 
 int execute_shell(const char *command, char **error_string);
 
 int is_memcheck(void);
 int is_helgrind(void);
 
 void set_scheduler(int policy);
 
 knet_handle_t knet_handle_start(int logfds[2], uint8_t log_level);
 
 /*
  * consider moving this one as official API
  */
 int knet_handle_stop(knet_handle_t knet_h);
 
 /*
  * high level logging function.
  * automatically setup logpipes and start/stop logging thread.
  *
  * start_logging exit(FAIL) on error or fd to pass to knet_handle_new
  * and it will install an atexit handle to close logging properly
  *
  * WARNING: DO NOT use start_logging for api_ or int_ testing.
  * while start_logging would work just fine, the output
  * of the logs is more complex to read because of the way
  * the thread would interleave the output of printf from api_/int_ testing
  * with knet logs. Functionally speaking you get the exact same logs,
  * but a lot harder to read due to the thread latency in printing logs.
  */
 int start_logging(FILE *std);
 
 int setup_logpipes(int *logfds);
 void close_logpipes(int *logfds);
 void flush_logs(int logfd, FILE *std);
 int start_logthread(int logfd, FILE *std);
 int stop_logthread(void);
 int make_local_sockaddr(struct sockaddr_storage *lo, uint16_t offset);
 int make_local_sockaddr6(struct sockaddr_storage *lo, uint16_t offset);
 int wait_for_host(knet_handle_t knet_h, uint16_t host_id, int seconds, int logfd, FILE *std);
 int wait_for_packet(knet_handle_t knet_h, int seconds, int datafd, int logfd, FILE *std);
+void test_sleep(knet_handle_t knet_h, int seconds);
 
 #endif