diff --git a/lib/asyn-thread.c b/lib/asyn-thread.c
index 31a313281..6cdc9adff 100644
--- a/lib/asyn-thread.c
+++ b/lib/asyn-thread.c
@@ -166,6 +166,7 @@ struct thread_sync_data {
 #ifdef HAVE_GETADDRINFO
   struct addrinfo hints;
 #endif
+  struct thread_data *td; /* for thread-self cleanup */
 };
 
 struct thread_data {
@@ -202,13 +203,16 @@ void destroy_thread_sync_data(struct thread_sync_data * tsd)
 
 /* Initialize resolver thread synchronization data */
 static
-int init_thread_sync_data(struct thread_sync_data * tsd,
+int init_thread_sync_data(struct thread_data * td,
                            const char * hostname,
                            int port,
                            const struct addrinfo *hints)
 {
+  struct thread_sync_data *tsd = &td->tsd;
+
   memset(tsd, 0, sizeof(*tsd));
 
+  tsd->td = td;
   tsd->port = port;
 #ifdef HAVE_GETADDRINFO
   DEBUGASSERT(hints);
@@ -266,6 +270,7 @@ static int getaddrinfo_complete(struct connectdata *conn)
 static unsigned int CURL_STDCALL getaddrinfo_thread (void *arg)
 {
   struct thread_sync_data *tsd = (struct thread_sync_data*)arg;
+  struct thread_data *td = tsd->td;
   char service[12];
   int rc;
 
@@ -280,8 +285,16 @@ static unsigned int CURL_STDCALL getaddrinfo_thread (void *arg)
   }
 
   Curl_mutex_acquire(tsd->mtx);
-  tsd->done = 1;
-  Curl_mutex_release(tsd->mtx);
+  if(tsd->done) {
+    /* too late, gotta clean up the mess */
+    Curl_mutex_release(tsd->mtx);
+    destroy_thread_sync_data(tsd);
+    free(td);
+  }
+  else {
+    tsd->done = 1;
+    Curl_mutex_release(tsd->mtx);
+  }
 
   return 0;
 }
@@ -294,6 +307,7 @@ static unsigned int CURL_STDCALL getaddrinfo_thread (void *arg)
 static unsigned int CURL_STDCALL gethostbyname_thread (void *arg)
 {
   struct thread_sync_data *tsd = (struct thread_sync_data *)arg;
+  struct thread_data *td = tsd->td;
 
   tsd->res = Curl_ipv4_resolve_r(tsd->hostname, tsd->port);
 
@@ -304,8 +318,16 @@ static unsigned int CURL_STDCALL gethostbyname_thread (void *arg)
   }
 
   Curl_mutex_acquire(tsd->mtx);
-  tsd->done = 1;
-  Curl_mutex_release(tsd->mtx);
+  if(tsd->done) {
+    /* too late, gotta clean up the mess */
+    Curl_mutex_release(tsd->mtx);
+    destroy_thread_sync_data(tsd);
+    free(td);
+  }
+  else {
+    tsd->done = 1;
+    Curl_mutex_release(tsd->mtx);
+  }
 
   return 0;
 }
@@ -317,21 +339,37 @@ static unsigned int CURL_STDCALL gethostbyname_thread (void *arg)
  */
 static void destroy_async_data (struct Curl_async *async)
 {
+  if(async->os_specific) {
+    struct thread_data *td = (struct thread_data*) async->os_specific;
+    int done;
+
+    /*
+     * if the thread is still blocking in the resolve syscall, detach it and
+     * let the thread do the cleanup...
+     */
+    Curl_mutex_acquire(td->tsd.mtx);
+    done = td->tsd.done;
+    td->tsd.done = 1;
+    Curl_mutex_release(td->tsd.mtx);
+
+    if(!done) {
+      Curl_thread_destroy(td->thread_hnd);
+    }
+    else {
+      if(td->thread_hnd != curl_thread_t_null)
+        Curl_thread_join(&td->thread_hnd);
+
+      destroy_thread_sync_data(&td->tsd);
+
+      free(async->os_specific);
+    }
+  }
+  async->os_specific = NULL;
+
   if(async->hostname)
     free(async->hostname);
 
-  if(async->os_specific) {
-    struct thread_data *td = (struct thread_data*) async->os_specific;
-
-    if(td->thread_hnd != curl_thread_t_null)
-      Curl_thread_join(&td->thread_hnd);
-
-    destroy_thread_sync_data(&td->tsd);
-
-    free(async->os_specific);
-  }
   async->hostname = NULL;
-  async->os_specific = NULL;
 }
 
 /*
@@ -357,7 +395,7 @@ static bool init_resolve_thread (struct connectdata *conn,
   conn->async.dns = NULL;
   td->thread_hnd = curl_thread_t_null;
 
-  if(!init_thread_sync_data(&td->tsd, hostname, port, hints))
+  if(!init_thread_sync_data(td, hostname, port, hints))
     goto err_exit;
 
   Curl_safefree(conn->async.hostname);
diff --git a/lib/hostip.c b/lib/hostip.c
index 61d238acd..73b3f8201 100644
--- a/lib/hostip.c
+++ b/lib/hostip.c
@@ -5,7 +5,7 @@
  *                            | (__| |_| |  _ <| |___
  *                             \___|\___/|_| \_\_____|
  *
- * Copyright (C) 1998 - 2013, Daniel Stenberg, <daniel@haxx.se>, et al.
+ * Copyright (C) 1998 - 2014, Daniel Stenberg, <daniel@haxx.se>, et al.
  *
  * This software is licensed as described in the file COPYING, which
  * you should have received as part of this distribution. The terms
@@ -318,6 +318,48 @@ remove_entry_if_stale(struct SessionHandle *data, struct Curl_dns_entry *dns)
 sigjmp_buf curl_jmpenv;
 #endif
 
+/*
+ * Curl_fetch_addr() fetches a 'Curl_dns_entry' already in the DNS cache.
+ *
+ * Curl_resolv() checks initially and multi_runsingle() checks each time
+ * it discovers the handle in the state WAITRESOLVE whether the hostname
+ * has already been resolved and the address has already been stored in
+ * the DNS cache. This short circuits waiting for a lot of pending
+ * lookups for the same hostname requested by different handles.
+ *
+ * Returns the Curl_dns_entry entry pointer or NULL if not in the cache.
+ */
+struct Curl_dns_entry *
+Curl_fetch_addr(struct connectdata *conn,
+                const char *hostname,
+                int port, int *stale)
+{
+  char *entry_id = NULL;
+  struct Curl_dns_entry *dns = NULL;
+  size_t entry_len;
+  struct SessionHandle *data = conn->data;
+
+  /* Create an entry id, based upon the hostname and port */
+  entry_id = create_hostcache_id(hostname, port);
+  /* If we can't create the entry id, fail */
+  if(!entry_id)
+    return dns;
+
+  entry_len = strlen(entry_id);
+
+  /* See if its already in our dns cache */
+  dns = Curl_hash_pick(data->dns.hostcache, entry_id, entry_len+1);
+
+  /* free the allocated entry_id again */
+  free(entry_id);
+
+  /* See whether the returned entry is stale. Done before we release lock */
+  *stale = remove_entry_if_stale(data, dns);
+  if(*stale)
+    dns = NULL; /* the memory deallocation is being handled by the hash */
+
+  return dns;
+}
 
 /*
  * Curl_cache_addr() stores a 'Curl_addrinfo' struct in the DNS cache.
@@ -403,39 +445,22 @@ int Curl_resolv(struct connectdata *conn,
                 int port,
                 struct Curl_dns_entry **entry)
 {
-  char *entry_id = NULL;
   struct Curl_dns_entry *dns = NULL;
-  size_t entry_len;
   struct SessionHandle *data = conn->data;
   CURLcode result;
-  int rc = CURLRESOLV_ERROR; /* default to failure */
+  int stale, rc = CURLRESOLV_ERROR; /* default to failure */
 
   *entry = NULL;
 
-  /* Create an entry id, based upon the hostname and port */
-  entry_id = create_hostcache_id(hostname, port);
-  /* If we can't create the entry id, fail */
-  if(!entry_id)
-    return rc;
-
-  entry_len = strlen(entry_id);
-
   if(data->share)
     Curl_share_lock(data, CURL_LOCK_DATA_DNS, CURL_LOCK_ACCESS_SINGLE);
 
-  /* See if its already in our dns cache */
-  dns = Curl_hash_pick(data->dns.hostcache, entry_id, entry_len+1);
+  dns = Curl_fetch_addr(conn, hostname, port, &stale);
 
-  /* free the allocated entry_id again */
-  free(entry_id);
-
-  infof(data, "Hostname was %sfound in DNS cache\n", dns?"":"NOT ");
-
-  /* See whether the returned entry is stale. Done before we release lock */
-  if(remove_entry_if_stale(data, dns)) {
+  infof(data, "Hostname was %sfound in DNS cache\n", dns||stale?"":"NOT ");
+  if(stale)
     infof(data, "Hostname in DNS cache was stale, zapped\n");
-    dns = NULL; /* the memory deallocation is being handled by the hash */
-  }
+
 
   if(dns) {
     dns->inuse++; /* we use it! */
diff --git a/lib/hostip.h b/lib/hostip.h
index 42ed7d320..440465194 100644
--- a/lib/hostip.h
+++ b/lib/hostip.h
@@ -171,6 +171,17 @@ CURLcode Curl_addrinfo_callback(struct connectdata *conn,
 const char *Curl_printable_address(const Curl_addrinfo *ip,
                                    char *buf, size_t bufsize);
 
+/*
+ * Curl_fetch_addr() fetches a 'Curl_dns_entry' already in the DNS cache.
+ *
+ * Returns the Curl_dns_entry entry pointer or NULL if not in the cache.
+ */
+struct Curl_dns_entry *
+Curl_fetch_addr(struct connectdata *conn,
+                const char *hostname,
+                int port,
+                int *stale);
+
 /*
  * Curl_cache_addr() stores a 'Curl_addrinfo' struct in the DNS cache.
  *
diff --git a/lib/multi.c b/lib/multi.c
index 1e5b3c8df..20fc372fa 100644
--- a/lib/multi.c
+++ b/lib/multi.c
@@ -30,6 +30,7 @@
 #include "connect.h"
 #include "progress.h"
 #include "easyif.h"
+#include "share.h"
 #include "multiif.h"
 #include "sendf.h"
 #include "timeval.h"
@@ -1084,9 +1085,32 @@ static CURLMcode multi_runsingle(struct Curl_multi *multi,
       /* awaiting an asynch name resolve to complete */
     {
       struct Curl_dns_entry *dns = NULL;
+      struct connectdata *conn = data->easy_conn;
+      int stale;
 
       /* check if we have the name resolved by now */
-      data->result = Curl_resolver_is_resolved(data->easy_conn, &dns);
+      if(data->share)
+        Curl_share_lock(data, CURL_LOCK_DATA_DNS, CURL_LOCK_ACCESS_SINGLE);
+
+      dns = Curl_fetch_addr(conn, conn->host.name, (int)conn->port, &stale);
+
+      if(dns) {
+        dns->inuse++; /* we use it! */
+#ifdef CURLRES_ASYNCH
+        conn->async.dns = dns;
+        conn->async.done = TRUE;
+#endif
+        data->result = CURLRESOLV_RESOLVED;
+        infof(data, "Hostname was found in DNS cache\n");
+      }
+      if(stale)
+        infof(data, "Hostname in DNS cache was stale, zapped\n");
+
+      if(data->share)
+        Curl_share_unlock(data, CURL_LOCK_DATA_DNS);
+
+      if(!dns)
+        data->result = Curl_resolver_is_resolved(data->easy_conn, &dns);
 
       /* Update sockets here, because the socket(s) may have been
          closed and the application thus needs to be told, even if it