diff --git a/ChangeLog b/ChangeLog
index 0284ac78..17340f24 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+v1.10.10
+--------------------------------------------------------------------------------
+  * adding signalling of data available before waiting on beam buffer to drain. Missing this causes suspended streams to stall and time out.
+
 v1.10.9
 --------------------------------------------------------------------------------
   * cleanup of bucket beam change signaling to track down issue #143
diff --git a/configure.ac b/configure.ac
index 3fc5ac8b..75408f60 100644
--- a/configure.ac
+++ b/configure.ac
@@ -14,7 +14,7 @@
 #
 
 AC_PREREQ([2.69])
-AC_INIT([mod_http2], [1.10.9], [stefan.eissing@greenbytes.de])
+AC_INIT([mod_http2], [1.10.10], [stefan.eissing@greenbytes.de])
 
 LT_PREREQ([2.2.6])
 LT_INIT()
diff --git a/mod_http2/h2_bucket_beam.c b/mod_http2/h2_bucket_beam.c
index fc2b7230..9f3bc709 100644
--- a/mod_http2/h2_bucket_beam.c
+++ b/mod_http2/h2_bucket_beam.c
@@ -367,7 +367,7 @@ static apr_status_t wait_not_empty(h2_bucket_beam *beam, apr_read_type_e block,
 }
 
 static apr_status_t wait_not_full(h2_bucket_beam *beam, apr_read_type_e block, 
-                                  apr_size_t *pspace_left, apr_thread_mutex_t *lock)
+                                  apr_size_t *pspace_left, h2_beam_lock *bl)
 {
     apr_status_t rv = APR_SUCCESS;
     apr_size_t left;
@@ -376,14 +376,16 @@ static apr_status_t wait_not_full(h2_bucket_beam *beam, apr_read_type_e block,
         if (beam->aborted) {
             rv = APR_ECONNABORTED;
         }
-        else if (block != APR_BLOCK_READ) {
+        else if (block != APR_BLOCK_READ || !bl->mutex) {
             rv = APR_EAGAIN;
         }
-        else if (beam->timeout > 0) {
-            rv = apr_thread_cond_timedwait(beam->change, lock, beam->timeout);
-        }
         else {
-            rv = apr_thread_cond_wait(beam->change, lock);
+            if (beam->timeout > 0) {
+                rv = apr_thread_cond_timedwait(beam->change, bl->mutex, beam->timeout);
+            }
+            else {
+                rv = apr_thread_cond_wait(beam->change, bl->mutex);
+            }
         }
     }
     *pspace_left = left;
@@ -944,7 +946,8 @@ apr_status_t h2_beam_send(h2_bucket_beam *beam,
             space_left = calc_space_left(beam);
             while (!APR_BRIGADE_EMPTY(sender_bb) && APR_SUCCESS == rv) {
                 if (space_left <= 0) {
-                    rv = wait_not_full(beam, block, &space_left, bl.mutex);
+                    report_prod_io(beam, force_report, &bl);
+                    rv = wait_not_full(beam, block, &space_left, &bl);
                     if (APR_SUCCESS != rv) {
                         break;
                     }
diff --git a/mod_http2/h2_version.h b/mod_http2/h2_version.h
index aa10a2a5..94608ac4 100644
--- a/mod_http2/h2_version.h
+++ b/mod_http2/h2_version.h
@@ -26,7 +26,7 @@
  * @macro
  * Version number of the http2 module as c string
  */
-#define MOD_HTTP2_VERSION "1.10.9-git"
+#define MOD_HTTP2_VERSION "1.10.10-git"
 
 /**
  * @macro
@@ -34,7 +34,7 @@
  * release. This is a 24 bit number with 8 bits for major number, 8 bits
  * for minor and 8 bits for patch. Version 1.2.3 becomes 0x010203.
  */
-#define MOD_HTTP2_VERSION_NUM 0x010a09
+#define MOD_HTTP2_VERSION_NUM 0x010a0a
 
 
 #endif /* mod_h2_h2_version_h */