diff --git a/core/offload.c b/core/offload.c
index fadb1970..7690852a 100644
--- a/core/offload.c
+++ b/core/offload.c
@@ -107,7 +107,7 @@ error:
 	return -1;
 }
 
-static void uwsgi_offload_close(struct uwsgi_offload_request *uor) {
+static void uwsgi_offload_close(struct uwsgi_thread *ut, struct uwsgi_offload_request *uor) {
 	// close the socket and the file descriptor
 	close(uor->s);
 	close(uor->fd);
@@ -115,12 +115,12 @@ static void uwsgi_offload_close(struct uwsgi_offload_request *uor) {
 	struct uwsgi_offload_request *prev = uor->prev;
 	struct uwsgi_offload_request *next = uor->next;
 
-	if (uor == uwsgi.offload_requests_head) {
-		uwsgi.offload_requests_head = next;
+	if (uor == ut->offload_requests_head) {
+		ut->offload_requests_head = next;
 	}
 
-	if (uor == uwsgi.offload_requests_tail) {
-		uwsgi.offload_requests_tail = prev;
+	if (uor == ut->offload_requests_tail) {
+		ut->offload_requests_tail = prev;
 	}
 
 	if (prev) {
@@ -142,22 +142,22 @@ static void uwsgi_offload_close(struct uwsgi_offload_request *uor) {
 	free(uor);
 }
 
-static void uwsgi_offload_append(struct uwsgi_offload_request *uor) {
+static void uwsgi_offload_append(struct uwsgi_thread *ut, struct uwsgi_offload_request *uor) {
 
-	if (!uwsgi.offload_requests_head) {
-		uwsgi.offload_requests_head = uor;
+	if (!ut->offload_requests_head) {
+		ut->offload_requests_head = uor;
 	}
 
-	if (uwsgi.offload_requests_tail) {
-		uwsgi.offload_requests_tail->next = uor;
-		uor->prev = uwsgi.offload_requests_tail;
+	if (ut->offload_requests_tail) {
+		ut->offload_requests_tail->next = uor;
+		uor->prev = ut->offload_requests_tail;
 	}
 
-	uwsgi.offload_requests_tail = uor;
+	ut->offload_requests_tail = uor;
 }
 
-static struct uwsgi_offload_request *uwsgi_offload_get_by_fd(int s) {
-	struct uwsgi_offload_request *uor = uwsgi.offload_requests_head;
+static struct uwsgi_offload_request *uwsgi_offload_get_by_fd(struct uwsgi_thread *ut, int s) {
+	struct uwsgi_offload_request *uor = ut->offload_requests_head;
 	while (uor) {
 		if (uor->s == s || uor->fd == s) {
 			return uor;
@@ -187,20 +187,20 @@ static void uwsgi_offload_loop(struct uwsgi_thread *ut) {
 				}
 				// start monitoring socket for write
 				if (uor->func(ut, uor, -1)) {
-					uwsgi_offload_close(uor);
+					uwsgi_offload_close(ut, uor);
 					continue;
 				}
-				uwsgi_offload_append(uor);
+				uwsgi_offload_append(ut, uor);
 				continue;
 			}
 
 			// get the task from the interesting fd
-			struct uwsgi_offload_request *uor = uwsgi_offload_get_by_fd(interesting_fd);
+			struct uwsgi_offload_request *uor = uwsgi_offload_get_by_fd(ut, interesting_fd);
 			if (!uor)
 				continue;
 			// run the hook
 			if (uor->func(ut, uor, interesting_fd)) {
-				uwsgi_offload_close(uor);
+				uwsgi_offload_close(ut, uor);
 			}
 		}
 	}
diff --git a/core/protocol.c b/core/protocol.c
index 1fe43206..f3d74d6f 100644
--- a/core/protocol.c
+++ b/core/protocol.c
@@ -1082,7 +1082,7 @@ nextcs:
 	udd = uwsgi.static_maps;
 	while (udd) {
 #ifdef UWSGI_DEBUG
-		uwsgi_log("checking for %.*s <-> %.*s\n", wsgi_req->path_info_len, wsgi_req->path_info, udd->keylen, udd->key);
+		uwsgi_log("checking for %.*s <-> %.*s %.*s\n", (int)wsgi_req->path_info_len, wsgi_req->path_info, (int)udd->keylen, udd->key, (int) udd->vallen, udd->value);
 #endif
 		if (udd->status == 0) {
 #ifdef UWSGI_THREADING
@@ -1092,6 +1092,7 @@ nextcs:
 			char *real_docroot = uwsgi_malloc(PATH_MAX + 1);
 			if (!realpath(udd->value, real_docroot)) {
 				free(real_docroot);
+				real_docroot = NULL;
 				udd->value = NULL;
 			}
 #ifdef UWSGI_THREADING
@@ -1128,6 +1129,7 @@ nextsm:
 			char *real_docroot = uwsgi_malloc(PATH_MAX + 1);
 			if (!realpath(udd->value, real_docroot)) {
 				free(real_docroot);
+				real_docroot = NULL;
 				udd->value = NULL;
 			}
 #ifdef UWSGI_THREADING
diff --git a/core/socket.c b/core/socket.c
index bd4fcbde..de5c287d 100644
--- a/core/socket.c
+++ b/core/socket.c
@@ -718,7 +718,7 @@ int timed_connect(struct pollfd *fdpoll, const struct sockaddr *addr, int addr_s
 
 
 #if defined(__linux__) && defined(SOCK_NONBLOCK) && !defined(OBSOLETE_LINUX_KERNEL)
-	// hmm, nothing to do, as we are already non-blocking
+	uwsgi_socket_b(fdpoll->fd);
 #else
 	/* re-set blocking socket */
 	arg &= (~O_NONBLOCK);
diff --git a/core/utils.c b/core/utils.c
index f9102582..f92c3c3b 100644
--- a/core/utils.c
+++ b/core/utils.c
@@ -4806,7 +4806,7 @@ static void *uwsgi_thread_run(void *arg) {
 
 struct uwsgi_thread *uwsgi_thread_new(void (*func) (struct uwsgi_thread *)) {
 
-	struct uwsgi_thread *ut = uwsgi_malloc(sizeof(struct uwsgi_thread));
+	struct uwsgi_thread *ut = uwsgi_calloc(sizeof(struct uwsgi_thread));
 
 #if defined(SOCK_SEQPACKET) && defined(__linux__)
 	if (socketpair(AF_UNIX, SOCK_SEQPACKET, 0, ut->pipe)) {
diff --git a/uwsgi.h b/uwsgi.h
index ced945a8..4ccaad5a 100644
--- a/uwsgi.h
+++ b/uwsgi.h
@@ -1529,10 +1529,6 @@ struct uwsgi_server {
 
 	int check_static_docroot;
 
-	// linked list for offloaded requests
-	struct uwsgi_offload_request *offload_requests_head;
-	struct uwsgi_offload_request *offload_requests_tail;
-
 	char *daemonize;
 	char *daemonize2;
 	int do_not_change_umask;
@@ -3409,6 +3405,9 @@ struct uwsgi_thread {
 	uint64_t custom1;
 	uint64_t custom2;
 	uint64_t custom3;
+	// linked list for offloaded requests
+        struct uwsgi_offload_request *offload_requests_head;
+        struct uwsgi_offload_request *offload_requests_tail;
 	void (*func)(struct uwsgi_thread *);
 };
 struct uwsgi_thread *uwsgi_thread_new(void (*)(struct uwsgi_thread *));