Bring changes to metadata cache "get entry status" call and new

"child serialized / unserialized" messages and support from the cache image
branch.

18 files changed, 614 insertions, 17 deletions

diff --git a/src/H5AC.c b/src/H5AC.c
index 2b7c871..117e662 100644
--- a/src/H5AC.c
+++ b/src/H5AC.c
@@ -1134,6 +1134,138 @@ done:
 
 
 /*-------------------------------------------------------------------------
+ * Function:    H5AC_mark_entry_unserialized
+ *
+ * Purpose:	Mark a pinned or protected entry as unserialized.  The target
+ * 		entry MUST be either pinned, protected, or both.
+ *
+ * Return:      Non-negative on success/Negative on failure
+ *
+ * Programmer:  Quincey Koziol
+ *              12/22/16
+ *
+ *-------------------------------------------------------------------------
+ */
+herr_t
+H5AC_mark_entry_unserialized(void *thing)
+{
+#if H5AC__TRACE_FILE_ENABLED
+    char          	trace[128] = "";
+    FILE *        	trace_file_ptr = NULL;
+#endif /* H5AC__TRACE_FILE_ENABLED */
+    hbool_t log_enabled;              /* TRUE if logging was set up */
+    hbool_t curr_logging;             /* TRUE if currently logging */
+    H5AC_info_t *entry_ptr = NULL;    /* Pointer to the cache entry */
+    H5C_t *cache_ptr = NULL;          /* Pointer to the entry's associated metadata cache */
+    herr_t ret_value = SUCCEED;       /* Return value */
+
+    FUNC_ENTER_NOAPI(FAIL)
+
+    /* Sanity check */
+    HDassert(thing);
+
+    /* Set up entry & cache pointers */
+    entry_ptr = (H5AC_info_t *)thing;
+    cache_ptr = entry_ptr->cache_ptr;
+
+#if H5AC__TRACE_FILE_ENABLED
+    /* For the mark entry unserialized call, only the addr
+     * is really necessary in the trace file.  Write the result to catch
+     * occult errors.
+     */
+    if(NULL != (trace_file_ptr = H5C_get_trace_file_ptr_from_entry(thing)))
+        sprintf(trace, "%s 0x%lx", FUNC, (unsigned long)(entry_ptr->addr));
+#endif /* H5AC__TRACE_FILE_ENABLED */
+
+    /* Check if log messages are being emitted */
+    if(H5C_get_logging_status(cache_ptr, &log_enabled, &curr_logging) < 0)
+        HGOTO_ERROR(H5E_CACHE, H5E_CANTGET, FAIL, "unable to get logging status")
+
+    if(H5C_mark_entry_unserialized(thing) < 0)
+        HGOTO_ERROR(H5E_CACHE, H5E_CANTMARKUNSERIALIZED, FAIL, "can't mark entry unserialized")
+
+done:
+#if H5AC__TRACE_FILE_ENABLED
+    if(trace_file_ptr)
+	HDfprintf(trace_file_ptr, "%s %d\n", trace, (int)ret_value);
+#endif /* H5AC__TRACE_FILE_ENABLED */
+
+    /* If currently logging, generate a message */
+    if(curr_logging)
+        if(H5AC__write_mark_unserialized_entry_log_msg(cache_ptr, entry_ptr, ret_value) < 0)
+            HDONE_ERROR(H5E_CACHE, H5E_LOGFAIL, FAIL, "unable to emit log message")
+
+    FUNC_LEAVE_NOAPI(ret_value)
+} /* H5AC_mark_entry_unserialized() */
+
+
+/*-------------------------------------------------------------------------
+ * Function:    H5AC_mark_entry_serialized
+ *
+ * Purpose:	Mark a pinned entry as serialized.  The target
+ * 		entry MUST be pinned.
+ *
+ * Return:      Non-negative on success/Negative on failure
+ *
+ * Programmer:  Quincey Koziol
+ *              12/22/16
+ *
+ *-------------------------------------------------------------------------
+ */
+herr_t
+H5AC_mark_entry_serialized(void *thing)
+{
+#if H5AC__TRACE_FILE_ENABLED
+    char          	trace[128] = "";
+    FILE *        	trace_file_ptr = NULL;
+#endif /* H5AC__TRACE_FILE_ENABLED */
+    hbool_t log_enabled;              /* TRUE if logging was set up */
+    hbool_t curr_logging;             /* TRUE if currently logging */
+    H5AC_info_t *entry_ptr = NULL;    /* Pointer to the cache entry */
+    H5C_t *cache_ptr = NULL;          /* Pointer to the entry's associated metadata cache */
+    herr_t ret_value = SUCCEED;       /* Return value */
+
+    FUNC_ENTER_NOAPI(FAIL)
+
+    /* Sanity check */
+    HDassert(thing);
+
+#if H5AC__TRACE_FILE_ENABLED
+    /* For the mark entry serializedn call, only the addr
+     * is really necessary in the trace file.  Write the result to catch
+     * occult errors.
+     */
+    if(NULL != (trace_file_ptr = H5C_get_trace_file_ptr_from_entry(thing)))
+        sprintf(trace, "%s 0x%lx", FUNC,
+	        (unsigned long)(((H5C_cache_entry_t *)thing)->addr));
+#endif /* H5AC__TRACE_FILE_ENABLED */
+
+    entry_ptr = (H5AC_info_t *)thing;
+    cache_ptr = entry_ptr->cache_ptr;
+
+    /* Check if log messages are being emitted */
+    if(H5C_get_logging_status(cache_ptr, &log_enabled, &curr_logging) < 0)
+        HGOTO_ERROR(H5E_CACHE, H5E_CANTGET, FAIL, "unable to get logging status")
+
+    if(H5C_mark_entry_serialized(thing) < 0)
+        HGOTO_ERROR(H5E_CACHE, H5E_CANTMARKSERIALIZED, FAIL, "can't mark entry serialized")
+
+done:
+#if H5AC__TRACE_FILE_ENABLED
+    if(trace_file_ptr)
+	HDfprintf(trace_file_ptr, "%s %d\n", trace, (int)ret_value);
+#endif /* H5AC__TRACE_FILE_ENABLED */
+
+    /* If currently logging, generate a message */
+    if(curr_logging)
+        if(H5AC__write_mark_serialized_entry_log_msg(cache_ptr, entry_ptr, ret_value) < 0)
+            HDONE_ERROR(H5E_CACHE, H5E_LOGFAIL, FAIL, "unable to emit log message")
+
+    FUNC_LEAVE_NOAPI(ret_value)
+} /* H5AC_mark_entry_serialized() */
+
+
+/*-------------------------------------------------------------------------
  * Function:    H5AC_move_entry
  *
  * Purpose:     Use this function to notify the cache that an object's
diff --git a/src/H5AClog.c b/src/H5AClog.c
index 1cdaa00..780373e 100644
--- a/src/H5AClog.c
+++ b/src/H5AClog.c
@@ -496,6 +496,101 @@ done:
 
 
 /*-------------------------------------------------------------------------
+ * Function:    H5AC__write_mark_unserialized_entry_log_msg
+ *
+ * Purpose:     Write a log message for marking cache entries as unserialized.
+ *
+ * Return:      Success:        SUCCEED
+ *              Failure:        FAIL
+ *
+ * Programmer:	Quincey Koziol
+ *              Thursday, December 22, 2016
+ *
+ *-------------------------------------------------------------------------
+ */
+herr_t
+H5AC__write_mark_unserialized_entry_log_msg(const H5AC_t *cache,
+                                     const H5AC_info_t *entry,
+                                     herr_t fxn_ret_value)
+{
+    char msg[MSG_SIZE];
+    herr_t ret_value = SUCCEED;
+
+    FUNC_ENTER_NOAPI(FAIL)
+
+    /* Sanity checks */
+    HDassert(cache);
+    HDassert(entry);
+
+    /* Create the log message string */
+    HDsnprintf(msg, MSG_SIZE, 
+"\
+{\
+\"timestamp\":%lld,\
+\"action\":\"unserialized\",\
+\"address\":0x%lx,\
+\"returned\":%d\
+},\n\
+"
+    , (long long)HDtime(NULL), (unsigned long)entry->addr, (int)fxn_ret_value);
+
+    /* Write the log message to the file */
+    if(H5C_write_log_message(cache, msg) < 0)
+        HGOTO_ERROR(H5E_CACHE, H5E_SYSTEM, FAIL, "unable to emit log message")
+
+done:
+    FUNC_LEAVE_NOAPI(ret_value)
+} /* H5AC__write_mark_unserialized_entry_log_msg() */
+
+
+/*-------------------------------------------------------------------------
+ * Function:    H5AC__write_mark_serialize_entry_log_msg
+ *
+ * Purpose:     Write a log message for marking cache entries as serialize.
+ *
+ * Return:      Success:        SUCCEED
+ *              Failure:        FAIL
+ *
+ * Programmer:	Quincey Koziol
+ *              Thursday, December 22, 2016
+ *
+ *-------------------------------------------------------------------------
+ */
+herr_t
+H5AC__write_mark_serialized_entry_log_msg(const H5AC_t *cache, const H5AC_info_t *entry,
+    herr_t fxn_ret_value)
+{
+    char msg[MSG_SIZE];                 /* Log message buffer */
+    herr_t ret_value = SUCCEED;         /* Return value */
+
+    FUNC_ENTER_NOAPI(FAIL)
+
+    /* Sanity checks */
+    HDassert(cache);
+    HDassert(entry);
+
+    /* Create the log message string */
+    HDsnprintf(msg, MSG_SIZE, 
+"\
+{\
+\"timestamp\":%lld,\
+\"action\":\"serialized\",\
+\"address\":0x%lx,\
+\"returned\":%d\
+},\n\
+"
+    , (long long)HDtime(NULL), (unsigned long)entry->addr, (int)fxn_ret_value);
+
+    /* Write the log message to the file */
+    if(H5C_write_log_message(cache, msg) < 0)
+        HGOTO_ERROR(H5E_CACHE, H5E_SYSTEM, FAIL, "unable to emit log message")
+
+done:
+    FUNC_LEAVE_NOAPI(ret_value)
+} /* H5AC__write_mark_serialized_entry_log_msg() */
+
+
+/*-------------------------------------------------------------------------
  * Function:    H5AC__write_move_entry_log_msg
  *
  * Purpose:     Write a log message for moving a cache entry.
diff --git a/src/H5ACpkg.h b/src/H5ACpkg.h
index 3900ff1..dbbd8a0 100644
--- a/src/H5ACpkg.h
+++ b/src/H5ACpkg.h
@@ -452,6 +452,10 @@ H5_DLL herr_t H5AC__write_mark_dirty_entry_log_msg(const H5AC_t *cache,
                                                    herr_t fxn_ret_value);
 H5_DLL herr_t H5AC__write_mark_clean_entry_log_msg(const H5AC_t *cache,
     const H5AC_info_t *entry, herr_t fxn_ret_value);
+H5_DLL herr_t H5AC__write_mark_unserialized_entry_log_msg(const H5AC_t *cache,
+        const H5AC_info_t *entry, herr_t fxn_ret_value);
+H5_DLL herr_t H5AC__write_mark_serialized_entry_log_msg(const H5AC_t *cache,
+    const H5AC_info_t *entry, herr_t fxn_ret_value);
 H5_DLL herr_t H5AC__write_move_entry_log_msg(const H5AC_t *cache,
                                              haddr_t old_addr,
                                              haddr_t new_addr,
diff --git a/src/H5ACprivate.h b/src/H5ACprivate.h
index fa7407a..3dd6079 100644
--- a/src/H5ACprivate.h
+++ b/src/H5ACprivate.h
@@ -170,6 +170,8 @@ typedef H5C_notify_action_t     H5AC_notify_action_t;
 #define H5AC_NOTIFY_ACTION_ENTRY_CLEANED H5C_NOTIFY_ACTION_ENTRY_CLEANED
 #define H5AC_NOTIFY_ACTION_CHILD_DIRTIED H5C_NOTIFY_ACTION_CHILD_DIRTIED
 #define H5AC_NOTIFY_ACTION_CHILD_CLEANED H5C_NOTIFY_ACTION_CHILD_CLEANED
+#define H5AC_NOTIFY_ACTION_CHILD_UNSERIALIZED H5C_NOTIFY_ACTION_CHILD_UNSERIALIZED
+#define H5AC_NOTIFY_ACTION_CHILD_SERIALIZED H5C_NOTIFY_ACTION_CHILD_SERIALIZED
 
 #define H5AC__CLASS_NO_FLAGS_SET 	H5C__CLASS_NO_FLAGS_SET
 #define H5AC__CLASS_SPECULATIVE_LOAD_FLAG H5C__CLASS_SPECULATIVE_LOAD_FLAG
@@ -218,6 +220,8 @@ typedef struct H5AC_proxy_entry_t {
     size_t nchildren;                   /* Number of children */
     size_t ndirty_children;             /* Number of dirty children */
                                         /* (Note that this currently duplicates some cache functionality) */
+    size_t nunser_children;             /* Number of unserialized children */
+                                        /* (Note that this currently duplicates some cache functionality) */
 } H5AC_proxy_entry_t;
 
 
@@ -378,6 +382,8 @@ H5_DLL herr_t H5AC_unprotect(H5F_t *f, hid_t dxpl_id, const H5AC_class_t *type,
 H5_DLL herr_t H5AC_flush(H5F_t *f, hid_t dxpl_id);
 H5_DLL herr_t H5AC_mark_entry_dirty(void *thing);
 H5_DLL herr_t H5AC_mark_entry_clean(void *thing);
+H5_DLL herr_t H5AC_mark_entry_unserialized(void *thing);
+H5_DLL herr_t H5AC_mark_entry_serialized(void *thing);
 H5_DLL herr_t H5AC_move_entry(H5F_t *f, const H5AC_class_t *type,
     haddr_t old_addr, haddr_t new_addr, hid_t dxpl_id);
 H5_DLL herr_t H5AC_dest(H5F_t *f, hid_t dxpl_id);
diff --git a/src/H5ACproxy_entry.c b/src/H5ACproxy_entry.c
index 66aacb3..cee9b72 100644
--- a/src/H5ACproxy_entry.c
+++ b/src/H5ACproxy_entry.c
@@ -312,6 +312,10 @@ H5AC_proxy_entry_add_child(H5AC_proxy_entry_t *pentry, H5F_t *f, hid_t dxpl_id,
         if(H5AC_mark_entry_clean(pentry) < 0)
             HGOTO_ERROR(H5E_CACHE, H5E_CANTCLEAN, FAIL, "can't mark proxy entry clean")
 
+        /* Proxies start out serialized (insertions are automatically marked unserialized) */
+        if(H5AC_mark_entry_serialized(pentry) < 0)
+            HGOTO_ERROR(H5E_CACHE, H5E_CANTSERIALIZE, FAIL, "can't mark proxy entry clean")
+
         /* If there are currently parents, iterate over the list of parents, creating flush dependency on them */
         if(pentry->parents)
             if(H5SL_iterate(pentry->parents, H5AC__proxy_entry_add_child_cb, pentry) < 0)
@@ -438,6 +442,7 @@ H5AC_proxy_entry_dest(H5AC_proxy_entry_t *pentry)
     HDassert(NULL == pentry->parents);
     HDassert(0 == pentry->nchildren);
     HDassert(0 == pentry->ndirty_children);
+    HDassert(0 == pentry->nunser_children);
 
     /* Free the proxy entry object */
     pentry = H5FL_FREE(H5AC_proxy_entry_t, pentry);
@@ -549,6 +554,7 @@ H5AC__proxy_entry_notify(H5AC_notify_action_t action, void *_thing)
         case H5AC_NOTIFY_ACTION_BEFORE_EVICT:
             /* Sanity checks */
             HDassert(0 == pentry->ndirty_children);
+            HDassert(0 == pentry->nunser_children);
 
             /* No action */
             break;
@@ -590,6 +596,29 @@ H5AC__proxy_entry_notify(H5AC_notify_action_t action, void *_thing)
                     HGOTO_ERROR(H5E_CACHE, H5E_CANTCLEAN, FAIL, "can't mark proxy entry clean")
             break;
 
+        case H5AC_NOTIFY_ACTION_CHILD_UNSERIALIZED:
+            /* Increment # of unserialized children */
+            pentry->nunser_children++;
+
+            /* Check for first unserialized child */
+            if(1 == pentry->nunser_children)
+                if(H5AC_mark_entry_unserialized(pentry) < 0)
+                    HGOTO_ERROR(H5E_CACHE, H5E_CANTUNSERIALIZE, FAIL, "can't mark proxy entry unserialized")
+            break;
+
+        case H5AC_NOTIFY_ACTION_CHILD_SERIALIZED:
+            /* Sanity check */
+            HDassert(pentry->nunser_children > 0);
+
+            /* Decrement # of unserialized children */
+            pentry->nunser_children--;
+
+            /* Check for last unserialized child */
+            if(0 == pentry->nunser_children)
+                if(H5AC_mark_entry_serialized(pentry) < 0)
+                    HGOTO_ERROR(H5E_CACHE, H5E_CANTSERIALIZE, FAIL, "can't mark proxy entry serialized")
+            break;
+
         default:
 #ifdef NDEBUG
             HGOTO_ERROR(H5E_CACHE, H5E_BADVALUE, FAIL, "unknown notify action from metadata cache")
diff --git a/src/H5B2cache.c b/src/H5B2cache.c
index 6954e6c..e9b6a41 100644
--- a/src/H5B2cache.c
+++ b/src/H5B2cache.c
@@ -479,6 +479,8 @@ H5B2__cache_hdr_notify(H5AC_notify_action_t action, void *_thing)
             case H5AC_NOTIFY_ACTION_ENTRY_CLEANED:
             case H5AC_NOTIFY_ACTION_CHILD_DIRTIED:
             case H5AC_NOTIFY_ACTION_CHILD_CLEANED:
+            case H5AC_NOTIFY_ACTION_CHILD_UNSERIALIZED:
+            case H5AC_NOTIFY_ACTION_CHILD_SERIALIZED:
 		/* do nothing */
                 break;
 
@@ -905,6 +907,8 @@ H5B2__cache_int_notify(H5AC_notify_action_t action, void *_thing)
             case H5AC_NOTIFY_ACTION_ENTRY_CLEANED:
             case H5AC_NOTIFY_ACTION_CHILD_DIRTIED:
             case H5AC_NOTIFY_ACTION_CHILD_CLEANED:
+            case H5AC_NOTIFY_ACTION_CHILD_UNSERIALIZED:
+            case H5AC_NOTIFY_ACTION_CHILD_SERIALIZED:
 		/* do nothing */
 		break;
 
@@ -1291,6 +1295,8 @@ H5B2__cache_leaf_notify(H5AC_notify_action_t action, void *_thing)
             case H5AC_NOTIFY_ACTION_ENTRY_CLEANED:
             case H5AC_NOTIFY_ACTION_CHILD_DIRTIED:
             case H5AC_NOTIFY_ACTION_CHILD_CLEANED:
+            case H5AC_NOTIFY_ACTION_CHILD_UNSERIALIZED:
+            case H5AC_NOTIFY_ACTION_CHILD_SERIALIZED:
                 /* do nothing */
                 break;
 
diff --git a/src/H5C.c b/src/H5C.c
index 37c833e..4adee6d 100644
--- a/src/H5C.c
+++ b/src/H5C.c
@@ -308,6 +308,7 @@ H5C_create(size_t		      max_cache_size,
     cache_ptr->log_flush			= log_flush;
 
     cache_ptr->evictions_enabled		= TRUE;
+    cache_ptr->close_warning_received		= FALSE;
 
     cache_ptr->index_len			= 0;
     cache_ptr->index_size			= (size_t)0;
@@ -1439,6 +1440,7 @@ H5C_insert_entry(H5F_t *             f,
     entry_ptr->flush_dep_parent_nalloc      = 0;
     entry_ptr->flush_dep_nchildren          = 0;
     entry_ptr->flush_dep_ndirty_children    = 0;
+    entry_ptr->flush_dep_nunser_children    = 0;
 
     entry_ptr->ht_next = NULL;
     entry_ptr->ht_prev = NULL;
@@ -1645,12 +1647,25 @@ H5C_mark_entry_dirty(void *thing)
         /* set the dirtied flag */
         entry_ptr->dirtied = TRUE;
 
-    } else if ( entry_ptr->is_pinned ) {
+        /* reset image_up_to_date */
+        if(entry_ptr->image_up_to_date) {
+            entry_ptr->image_up_to_date = FALSE;
+
+            if(entry_ptr->flush_dep_nparents > 0)
+                if(H5C__mark_flush_dep_unserialized(entry_ptr) < 0)
+                    HGOTO_ERROR(H5E_CACHE, H5E_CANTNOTIFY, FAIL, "Can't propagate serialization status to fd parents")
+        }/* end if */
+    } /* end if */
+    else if ( entry_ptr->is_pinned ) {
         hbool_t		was_clean;      /* Whether the entry was previously clean */
+        hbool_t		image_was_up_to_date;
 
         /* Remember previous dirty status */
 	was_clean = !entry_ptr->is_dirty;
 
+        /* Check if image is up to date */
+        image_was_up_to_date = entry_ptr->image_up_to_date;
+
         /* Mark the entry as dirty if it isn't already */
         entry_ptr->is_dirty = TRUE;
 	entry_ptr->image_up_to_date = FALSE;
@@ -1678,6 +1693,10 @@ H5C_mark_entry_dirty(void *thing)
                 if(H5C__mark_flush_dep_dirty(entry_ptr) < 0)
                     HGOTO_ERROR(H5E_CACHE, H5E_CANTMARKDIRTY, FAIL, "Can't propagate flush dep dirty flag")
         } /* end if */
+        if(image_was_up_to_date)
+            if(entry_ptr->flush_dep_nparents > 0)
+                if(H5C__mark_flush_dep_unserialized(entry_ptr) < 0)
+                    HGOTO_ERROR(H5E_CACHE, H5E_CANTNOTIFY, FAIL, "Can't propagate serialization status to fd parents")
     } /* end if */
     else
         HGOTO_ERROR(H5E_CACHE, H5E_CANTMARKDIRTY, FAIL, "Entry is neither pinned nor protected??")
@@ -1767,6 +1786,99 @@ done:
 
 
 /*-------------------------------------------------------------------------
+ * Function:    H5C_mark_entry_unserialized
+ *
+ * Purpose:	Mark a pinned or protected entry as unserialized.  The target
+ *		entry MUST be either pinned or protected, and MAY be both.
+ *
+ * Return:      Non-negative on success/Negative on failure
+ *
+ * Programmer:  Quincey Koziol
+ *              12/23/16
+ *
+ *-------------------------------------------------------------------------
+ */
+herr_t
+H5C_mark_entry_unserialized(void *thing)
+{
+    H5C_cache_entry_t  *entry = (H5C_cache_entry_t *)thing;
+    herr_t              ret_value = SUCCEED;    /* Return value */
+
+    FUNC_ENTER_NOAPI(FAIL)
+
+    /* Sanity checks */
+    HDassert(entry);
+    HDassert(H5F_addr_defined(entry->addr));
+
+    if(entry->is_protected || entry->is_pinned) {
+        HDassert(!entry->is_read_only);
+
+        /* Reset image_up_to_date */
+        if(entry->image_up_to_date) {
+	    entry->image_up_to_date = FALSE;
+
+            if(entry->flush_dep_nparents > 0)
+                if(H5C__mark_flush_dep_unserialized(entry) < 0)
+                    HGOTO_ERROR(H5E_CACHE, H5E_CANTSET, FAIL, "Can't propagate serialization status to fd parents")
+        }/* end if */
+    } /* end if */
+    else
+        HGOTO_ERROR(H5E_CACHE, H5E_CANTMARKUNSERIALIZED, FAIL, "Entry to unserialize is neither pinned nor protected??")
+
+done:
+    FUNC_LEAVE_NOAPI(ret_value)
+} /* H5C_mark_entry_unserialized() */
+
+
+/*-------------------------------------------------------------------------
+ * Function:    H5C_mark_entry_serialized
+ *
+ * Purpose:	Mark a pinned entry as serialized.  The target entry MUST be
+ *		pinned.
+ *
+ * Return:      Non-negative on success/Negative on failure
+ *
+ * Programmer:  Quincey Koziol
+ *              12/23/16
+ *
+ *-------------------------------------------------------------------------
+ */
+herr_t
+H5C_mark_entry_serialized(void *_thing)
+{
+    H5C_cache_entry_t  *entry = (H5C_cache_entry_t *)_thing;
+    herr_t              ret_value = SUCCEED;    /* Return value */
+
+    FUNC_ENTER_NOAPI(FAIL)
+
+    /* Sanity checks */
+    HDassert(entry);
+    HDassert(H5F_addr_defined(entry->addr));
+
+    /* Operate on pinned entry */
+    if(entry->is_protected)
+        HGOTO_ERROR(H5E_CACHE, H5E_CANTMARKSERIALIZED, FAIL, "entry is protected")
+    else if(entry->is_pinned) {
+        /* Check for entry changing status and do notifications, etc. */
+        if(!entry->image_up_to_date) {
+	    /* Set the image_up_to_date flag */
+            entry->image_up_to_date = TRUE;
+
+            /* Propagate the serialize up the flush dependency chain, if appropriate */
+            if(entry->flush_dep_nparents > 0)
+                if(H5C__mark_flush_dep_serialized(entry) < 0)
+                    HGOTO_ERROR(H5E_CACHE, H5E_CANTMARKSERIALIZED, FAIL, "Can't propagate flush dep serialize")
+        } /* end if */
+    } /* end if */
+    else
+        HGOTO_ERROR(H5E_CACHE, H5E_CANTMARKSERIALIZED, FAIL, "Entry is not pinned??")
+
+done:
+    FUNC_LEAVE_NOAPI(ret_value)
+} /* H5C_mark_entry_serialized() */
+
+
+/*-------------------------------------------------------------------------
  *
  * Function:    H5C_move_entry
  *
@@ -1867,7 +1979,12 @@ H5C_move_entry(H5C_t *	     cache_ptr,
 	entry_ptr->is_dirty = TRUE;
 
 	/* This shouldn't be needed, but it keeps the test code happy */
-        entry_ptr->image_up_to_date = FALSE;
+        if(entry_ptr->image_up_to_date) {
+            entry_ptr->image_up_to_date = FALSE;
+            if(entry_ptr->flush_dep_nparents > 0)
+                if(H5C__mark_flush_dep_unserialized(entry_ptr) < 0)
+                    HGOTO_ERROR(H5E_CACHE, H5E_CANTNOTIFY, FAIL, "Can't propagate serialization status to fd parents")
+        } /* end if */
 
         /* Modify cache data structures */
         H5C__INSERT_IN_INDEX(cache_ptr, entry_ptr, FAIL)
@@ -1965,7 +2082,14 @@ H5C_resize_entry(void *thing, size_t new_size)
 
         /* mark the entry as dirty if it isn't already */
         entry_ptr->is_dirty = TRUE;
-        entry_ptr->image_up_to_date = FALSE;
+
+        /* Reset the image up-to-date status */
+        if(entry_ptr->image_up_to_date) {
+            entry_ptr->image_up_to_date = FALSE;
+            if(entry_ptr->flush_dep_nparents > 0)
+                if(H5C__mark_flush_dep_unserialized(entry_ptr) < 0)
+                    HGOTO_ERROR(H5E_CACHE, H5E_CANTNOTIFY, FAIL, "Can't propagate serialization status to fd parents")
+        } /* end if */
 
         /* Release the current image */
         if(entry_ptr->image_ptr)
@@ -3229,18 +3353,13 @@ H5C_unprotect(H5F_t *		  f,
         /* Mark the entry as dirty if appropriate */
         entry_ptr->is_dirty = (entry_ptr->is_dirty || dirtied);
 
-        /* the image_up_to_date field was introduced to support 
-         * journaling.  Until we re-introduce journaling, this 
-         * field should be equal to !entry_ptr->is_dirty.  
-         *
-         * When journaling is re-enabled it should be set 
-         * to FALSE if dirtied is TRUE.
-         */
-#if 1 /* JRM */
-	entry_ptr->image_up_to_date = FALSE;
-#else /* JRM */
-	entry_ptr->image_up_to_date = !entry_ptr->is_dirty;
-#endif /* JRM */
+	if(dirtied)
+	    if(entry_ptr->image_up_to_date) {
+	        entry_ptr->image_up_to_date = FALSE;
+	        if(entry_ptr->flush_dep_nparents > 0)
+		    if(H5C__mark_flush_dep_unserialized(entry_ptr) < 0)
+                        HGOTO_ERROR(H5E_CACHE, H5E_CANTNOTIFY, FAIL, "Can't propagate serialization status to fd parents")
+            } /* end if */
 
         /* Check for newly dirtied entry */
         if(was_clean && entry_ptr->is_dirty) {
@@ -3782,6 +3901,20 @@ H5C_create_flush_dependency(void * parent_thing, void * child_thing)
             HGOTO_ERROR(H5E_CACHE, H5E_CANTNOTIFY, FAIL, "can't notify parent about child entry dirty flag set")
     } /* end if */
 
+    /* adjust the parent's number of unserialized children.  Note
+     * that it is possible for and entry to be clean and unserialized.
+     */
+    if(!child_entry->image_up_to_date) {
+        HDassert(parent_entry->flush_dep_nunser_children < parent_entry->flush_dep_nchildren);
+
+        parent_entry->flush_dep_nunser_children++;
+
+        /* If the parent has a 'notify' callback, send a 'child entry unserialized' notice */
+        if(parent_entry->type->notify &&
+                (parent_entry->type->notify)(H5C_NOTIFY_ACTION_CHILD_UNSERIALIZED, parent_entry) < 0)
+            HGOTO_ERROR(H5E_CACHE, H5E_CANTNOTIFY, FAIL, "can't notify parent about child entry serialized flag reset")
+    } /* end if */
+
     /* Post-conditions, for successful operation */
     HDassert(parent_entry->is_pinned);
     HDassert(parent_entry->flush_dep_nchildren > 0);
@@ -3893,6 +4026,18 @@ H5C_destroy_flush_dependency(void *parent_thing, void * child_thing)
             HGOTO_ERROR(H5E_CACHE, H5E_CANTNOTIFY, FAIL, "can't notify parent about child entry dirty flag reset")
     } /* end if */
 
+    /* adjust parent entry's number of unserialized children */
+    if(!child_entry->image_up_to_date) {
+        HDassert(parent_entry->flush_dep_nunser_children > 0);
+
+        parent_entry->flush_dep_nunser_children--;
+
+        /* If the parent has a 'notify' callback, send a 'child entry serialized' notice */
+        if(parent_entry->type->notify &&
+                (parent_entry->type->notify)(H5C_NOTIFY_ACTION_CHILD_SERIALIZED, parent_entry) < 0)
+            HGOTO_ERROR(H5E_CACHE, H5E_CANTNOTIFY, FAIL, "can't notify parent about child entry serialized flag set")
+    } /* end if */
+
     /* Shrink or free the parent array if apporpriate */
     if(child_entry->flush_dep_nparents == 0) {
         child_entry->flush_dep_parent = (H5C_cache_entry_t **)H5FL_BLK_FREE(parent, child_entry->flush_dep_parent);
@@ -5950,6 +6095,9 @@ H5C_flush_ring(H5F_t *f, hid_t dxpl_id, H5C_ring_t ring,  unsigned flags)
                     && (entry_ptr->flush_dep_nchildren == 0
                         || entry_ptr->flush_dep_ndirty_children == 0) 
                     && entry_ptr->ring == ring) {
+
+                HDassert(entry_ptr->flush_dep_nunser_children == 0);
+
                 if(entry_ptr->is_protected) {
                     /* we probably have major problems -- but lets 
                      * flush everything we can before we decide 
@@ -6811,6 +6959,7 @@ H5C_load_entry(H5F_t *              f,
     entry->flush_dep_parent_nalloc      = 0;
     entry->flush_dep_nchildren          = 0;
     entry->flush_dep_ndirty_children    = 0;
+    entry->flush_dep_nunser_children    = 0;
     entry->ht_next                      = NULL;
     entry->ht_prev                      = NULL;
     entry->il_next                      = NULL;
@@ -7882,9 +8031,102 @@ done:
     FUNC_LEAVE_NOAPI(ret_value)
 } /* H5C__mark_flush_dep_clean() */
 
-#ifndef NDEBUG
 
 /*-------------------------------------------------------------------------
+ * Function:    H5C__mark_flush_dep_serialized()
+ *
+ * Purpose:     Decrement the flush_dep_nunser_children fields of all the 
+ *		target entry's flush dependency parents in response to 
+ *		the target entry becoming serialized.
+ *
+ * Return:      Non-negative on success/Negative on failure
+ *
+ * Programmer:  John Mainzer
+ *              8/30/16
+ *
+ *-------------------------------------------------------------------------
+ */
+herr_t
+H5C__mark_flush_dep_serialized(H5C_cache_entry_t * entry_ptr)
+{
+    unsigned u;                         /* Local index variable */
+    herr_t ret_value = SUCCEED;         /* Return value */
+
+    FUNC_ENTER_STATIC
+
+    /* Sanity checks */
+    HDassert(entry_ptr);
+
+    /* Iterate over the parent entries, if any */
+    for(u = 0; u < entry_ptr->flush_dep_nparents; u++) {
+
+        HDassert(entry_ptr->flush_dep_parent);
+        HDassert(entry_ptr->flush_dep_parent[u]->magic == H5C__H5C_CACHE_ENTRY_T_MAGIC);
+        HDassert(entry_ptr->flush_dep_parent[u]->flush_dep_nunser_children > 0);
+
+        /* decrement the parents number of unserialized children */
+        entry_ptr->flush_dep_parent[u]->flush_dep_nunser_children--;
+
+        /* If the parent has a 'notify' callback, send a 'child entry serialized' notice */
+        if(entry_ptr->flush_dep_parent[u]->type->notify &&
+                (entry_ptr->flush_dep_parent[u]->type->notify)(H5C_NOTIFY_ACTION_CHILD_SERIALIZED, entry_ptr->flush_dep_parent[u]) < 0)
+            HGOTO_ERROR(H5E_CACHE, H5E_CANTNOTIFY, FAIL, "can't notify parent about child entry serialized flag set")
+    } /* end for */
+
+done:
+    FUNC_LEAVE_NOAPI(ret_value)
+} /* H5C__mark_flush_dep_serialized() */
+
+
+/*-------------------------------------------------------------------------
+ * Function:    H5C__mark_flush_dep_unserialized()
+ *
+ * Purpose:     Decrement the flush_dep_nunser_children fields of all the 
+ *              target entry's flush dependency parents in response to 
+ *              the target entry becoming unserialized.
+ *
+ * Return:      Non-negative on success/Negative on failure
+ *
+ * Programmer:  John Mainzer
+ *              8/30/16
+ *
+ *-------------------------------------------------------------------------
+ */
+herr_t
+H5C__mark_flush_dep_unserialized(H5C_cache_entry_t * entry_ptr)
+{
+    unsigned u;                         /* Local index variable */
+    herr_t ret_value = SUCCEED;         /* Return value */
+
+    FUNC_ENTER_STATIC
+
+    /* Sanity checks */
+    HDassert(entry_ptr);
+
+    /* Iterate over the parent entries, if any */
+    for(u = 0; u < entry_ptr->flush_dep_nparents; u++) {
+        /* Sanity check */
+        HDassert(entry_ptr->flush_dep_parent);
+        HDassert(entry_ptr->flush_dep_parent[u]->magic == H5C__H5C_CACHE_ENTRY_T_MAGIC);
+        HDassert(entry_ptr->flush_dep_parent[u]->flush_dep_nunser_children < 
+                 entry_ptr->flush_dep_parent[u]->flush_dep_nchildren);
+
+        /* increment parents number of usserialized children */
+        entry_ptr->flush_dep_parent[u]->flush_dep_nunser_children++;
+
+        /* If the parent has a 'notify' callback, send a 'child entry unserialized' notice */
+        if(entry_ptr->flush_dep_parent[u]->type->notify &&
+                (entry_ptr->flush_dep_parent[u]->type->notify)(H5C_NOTIFY_ACTION_CHILD_UNSERIALIZED, entry_ptr->flush_dep_parent[u]) < 0)
+            HGOTO_ERROR(H5E_CACHE, H5E_CANTNOTIFY, FAIL, "can't notify parent about child entry serialized flag reset")
+    } /* end for */
+
+done:
+    FUNC_LEAVE_NOAPI(ret_value)
+} /* H5C__mark_flush_dep_unserialized() */
+
+
+#ifndef NDEBUG
+/*-------------------------------------------------------------------------
  * Function:    H5C__assert_flush_dep_nocycle()
  *
  * Purpose:     Assert recursively that base_entry is not the same as
@@ -8074,6 +8316,10 @@ H5C__generate_image(H5F_t *f, H5C_t *cache_ptr, H5C_cache_entry_t *entry_ptr,
 #endif /* H5C_DO_MEMORY_SANITY_CHECKS */
     entry_ptr->image_up_to_date = TRUE;
 
+    if(entry_ptr->flush_dep_nparents > 0)
+        if(H5C__mark_flush_dep_serialized(entry_ptr) < 0)
+            HGOTO_ERROR(H5E_CACHE, H5E_CANTNOTIFY, FAIL, "Can't propagate serialization status to fd parents")
+
 done:
     FUNC_LEAVE_NOAPI(ret_value)
 } /* H5C__generate_image */
diff --git a/src/H5Cpkg.h b/src/H5Cpkg.h
index 306f5f9..6e37bca 100644
--- a/src/H5Cpkg.h
+++ b/src/H5Cpkg.h
@@ -4594,6 +4594,8 @@ H5_DLLVAR const H5C_class_t H5C__epoch_marker_class;
 /* General routines */
 H5_DLL herr_t H5C__flush_single_entry(H5F_t *f, hid_t dxpl_id,
     H5C_cache_entry_t *entry_ptr, unsigned flags);
+H5_DLL herr_t H5C__mark_flush_dep_serialized(H5C_cache_entry_t * entry_ptr);
+H5_DLL herr_t H5C__mark_flush_dep_unserialized(H5C_cache_entry_t * entry_ptr);
 H5_DLL herr_t H5C__flush_marked_entries(H5F_t * f, hid_t dxpl_id);
 H5_DLL herr_t H5C__iter_tagged_entries(H5C_t *cache, haddr_t tag, hbool_t match_global,
     H5C_tag_iter_cb_t cb, void *cb_ctx);
diff --git a/src/H5Cprivate.h b/src/H5Cprivate.h
index 9d8f0d4..654ce35 100644
--- a/src/H5Cprivate.h
+++ b/src/H5Cprivate.h
@@ -867,7 +867,9 @@ typedef enum H5C_notify_action_t {
     H5C_NOTIFY_ACTION_ENTRY_DIRTIED,    /* Entry has been marked dirty. */
     H5C_NOTIFY_ACTION_ENTRY_CLEANED,    /* Entry has been marked clean. */
     H5C_NOTIFY_ACTION_CHILD_DIRTIED,    /* Dependent child has been marked dirty. */
-    H5C_NOTIFY_ACTION_CHILD_CLEANED     /* Dependent child has been marked clean. */
+    H5C_NOTIFY_ACTION_CHILD_CLEANED,    /* Dependent child has been marked clean. */
+    H5C_NOTIFY_ACTION_CHILD_UNSERIALIZED, /* Dependent child has been marked unserialized. */
+    H5C_NOTIFY_ACTION_CHILD_SERIALIZED  /* Dependent child has been marked serialized. */
 } H5C_notify_action_t;
 
 /* Cache client callback function pointers */
@@ -1214,6 +1216,19 @@ typedef int H5C_ring_t;
  *              either dirty or have a nonzero flush_dep_ndirty_children.  If
  *              this field is nonzero, then this entry cannot be flushed.
  *
+ * flush_dep_nunser_children:  Number of flush dependency children
+ *		that are either unserialized, or have a non-zero number of 
+ *		positive number of unserialized children.
+ *
+ *		Note that since there is no requirement that a clean entry
+ *		be serialized, it is possible that flush_dep_nunser_children
+ *		to be greater than flush_dep_ndirty_children.
+ *
+ *		This field exist to facilitate correct ordering of entry
+ *		serializations when it is necessary to serialize all the 
+ *		entries in the metadata cache.  Thus in the cache
+ *		serialization, no entry can be serialized unless this
+ *		field contains 0.
  *
  * Fields supporting the hash table:
  *
@@ -1398,6 +1413,7 @@ typedef struct H5C_cache_entry_t {
     unsigned                    flush_dep_parent_nalloc;
     unsigned                    flush_dep_nchildren;
     unsigned                    flush_dep_ndirty_children;
+    unsigned                    flush_dep_nunser_children;
     hbool_t			pinned_from_client;
     hbool_t			pinned_from_cache;
 
@@ -1771,6 +1787,8 @@ H5_DLL herr_t H5C_insert_entry(H5F_t *f, hid_t dxpl_id, const H5C_class_t *type,
     haddr_t addr, void *thing, unsigned int flags);
 H5_DLL herr_t H5C_mark_entry_dirty(void *thing);
 H5_DLL herr_t H5C_mark_entry_clean(void *thing);
+H5_DLL herr_t H5C_mark_entry_unserialized(void *thing);
+H5_DLL herr_t H5C_mark_entry_serialized(void *thing);
 H5_DLL herr_t H5C_move_entry(H5C_t *cache_ptr, const H5C_class_t *type,
     haddr_t old_addr, haddr_t new_addr);
 H5_DLL herr_t H5C_pin_protected_entry(void *thing);
diff --git a/src/H5EAcache.c b/src/H5EAcache.c
index 1119e39..894b31a 100644
--- a/src/H5EAcache.c
+++ b/src/H5EAcache.c
@@ -554,6 +554,8 @@ H5EA__cache_hdr_notify(H5AC_notify_action_t action, void *_thing))
             case H5AC_NOTIFY_ACTION_ENTRY_CLEANED:
             case H5AC_NOTIFY_ACTION_CHILD_DIRTIED:
             case H5AC_NOTIFY_ACTION_CHILD_CLEANED:
+            case H5AC_NOTIFY_ACTION_CHILD_UNSERIALIZED:
+            case H5AC_NOTIFY_ACTION_CHILD_SERIALIZED:
 		/* do nothing */
 		break;
 
@@ -958,6 +960,8 @@ H5EA__cache_iblock_notify(H5AC_notify_action_t action, void *_thing))
         case H5AC_NOTIFY_ACTION_ENTRY_CLEANED:
         case H5AC_NOTIFY_ACTION_CHILD_DIRTIED:
         case H5AC_NOTIFY_ACTION_CHILD_CLEANED:
+        case H5AC_NOTIFY_ACTION_CHILD_UNSERIALIZED:
+        case H5AC_NOTIFY_ACTION_CHILD_SERIALIZED:
             /* do nothing */
             break;
 
@@ -1381,6 +1385,8 @@ H5EA__cache_sblock_notify(H5AC_notify_action_t action, void *_thing))
         case H5AC_NOTIFY_ACTION_ENTRY_CLEANED:
         case H5AC_NOTIFY_ACTION_CHILD_DIRTIED:
         case H5AC_NOTIFY_ACTION_CHILD_CLEANED:
+        case H5AC_NOTIFY_ACTION_CHILD_UNSERIALIZED:
+        case H5AC_NOTIFY_ACTION_CHILD_SERIALIZED:
             /* do nothing */
             break;
 
@@ -1792,6 +1798,8 @@ H5EA__cache_dblock_notify(H5AC_notify_action_t action, void *_thing))
         case H5AC_NOTIFY_ACTION_ENTRY_CLEANED:
         case H5AC_NOTIFY_ACTION_CHILD_DIRTIED:
         case H5AC_NOTIFY_ACTION_CHILD_CLEANED:
+        case H5AC_NOTIFY_ACTION_CHILD_UNSERIALIZED:
+        case H5AC_NOTIFY_ACTION_CHILD_SERIALIZED:
             /* do nothing */
             break;
 
@@ -2171,6 +2179,8 @@ H5EA__cache_dblk_page_notify(H5AC_notify_action_t action, void *_thing))
         case H5AC_NOTIFY_ACTION_ENTRY_CLEANED:
         case H5AC_NOTIFY_ACTION_CHILD_DIRTIED:
         case H5AC_NOTIFY_ACTION_CHILD_CLEANED:
+        case H5AC_NOTIFY_ACTION_CHILD_UNSERIALIZED:
+        case H5AC_NOTIFY_ACTION_CHILD_SERIALIZED:
             /* do nothing */
             break;
 
diff --git a/src/H5FAcache.c b/src/H5FAcache.c
index 11e8571..40117a7 100644
--- a/src/H5FAcache.c
+++ b/src/H5FAcache.c
@@ -475,6 +475,8 @@ H5FA__cache_hdr_notify(H5AC_notify_action_t action, void *_thing))
             case H5AC_NOTIFY_ACTION_ENTRY_CLEANED:
             case H5AC_NOTIFY_ACTION_CHILD_DIRTIED:
             case H5AC_NOTIFY_ACTION_CHILD_CLEANED:
+            case H5AC_NOTIFY_ACTION_CHILD_UNSERIALIZED:
+            case H5AC_NOTIFY_ACTION_CHILD_SERIALIZED:
                 /* do nothing */
                 break;
 
@@ -879,6 +881,8 @@ H5FA__cache_dblock_notify(H5AC_notify_action_t action, void *_thing))
             case H5AC_NOTIFY_ACTION_ENTRY_CLEANED:
             case H5AC_NOTIFY_ACTION_CHILD_DIRTIED:
             case H5AC_NOTIFY_ACTION_CHILD_CLEANED:
+            case H5AC_NOTIFY_ACTION_CHILD_UNSERIALIZED:
+            case H5AC_NOTIFY_ACTION_CHILD_SERIALIZED:
                 /* do nothing */
                 break;
 
@@ -1254,6 +1258,8 @@ H5FA__cache_dblk_page_notify(H5AC_notify_action_t action, void *_thing))
         case H5AC_NOTIFY_ACTION_ENTRY_CLEANED:
         case H5AC_NOTIFY_ACTION_CHILD_DIRTIED:
         case H5AC_NOTIFY_ACTION_CHILD_CLEANED:
+        case H5AC_NOTIFY_ACTION_CHILD_UNSERIALIZED:
+        case H5AC_NOTIFY_ACTION_CHILD_SERIALIZED:
             /* do nothing */
             break;
 
diff --git a/src/H5FScache.c b/src/H5FScache.c
index 6235509..dcc8122 100644
--- a/src/H5FScache.c
+++ b/src/H5FScache.c
@@ -808,6 +808,8 @@ H5FS__cache_hdr_notify(H5AC_notify_action_t action, void *_thing)
         case H5AC_NOTIFY_ACTION_ENTRY_CLEANED:
         case H5AC_NOTIFY_ACTION_CHILD_DIRTIED:
         case H5AC_NOTIFY_ACTION_CHILD_CLEANED:
+        case H5AC_NOTIFY_ACTION_CHILD_UNSERIALIZED:
+        case H5AC_NOTIFY_ACTION_CHILD_SERIALIZED:
         case H5AC_NOTIFY_ACTION_BEFORE_EVICT:
             /* do nothing */
             break;
@@ -1340,6 +1342,8 @@ H5FS__cache_sinfo_notify(H5AC_notify_action_t action, void *_thing)
             case H5AC_NOTIFY_ACTION_ENTRY_CLEANED:
             case H5AC_NOTIFY_ACTION_CHILD_DIRTIED:
             case H5AC_NOTIFY_ACTION_CHILD_CLEANED:
+            case H5AC_NOTIFY_ACTION_CHILD_UNSERIALIZED:
+            case H5AC_NOTIFY_ACTION_CHILD_SERIALIZED:
                 /* do nothing */
                 break;
 
diff --git a/src/H5HFcache.c b/src/H5HFcache.c
index e72cc6c..302fe04 100644
--- a/src/H5HFcache.c
+++ b/src/H5HFcache.c
@@ -1492,6 +1492,8 @@ H5HF__cache_iblock_notify(H5AC_notify_action_t action, void *_thing)
         case H5AC_NOTIFY_ACTION_ENTRY_CLEANED:
         case H5AC_NOTIFY_ACTION_CHILD_DIRTIED:
         case H5AC_NOTIFY_ACTION_CHILD_CLEANED:
+        case H5AC_NOTIFY_ACTION_CHILD_UNSERIALIZED:
+        case H5AC_NOTIFY_ACTION_CHILD_SERIALIZED:
 	    /* do nothing */
 	    break;
 
@@ -2505,6 +2507,8 @@ H5HF__cache_dblock_notify(H5AC_notify_action_t action, void *_thing)
         case H5AC_NOTIFY_ACTION_ENTRY_CLEANED:
         case H5AC_NOTIFY_ACTION_CHILD_DIRTIED:
         case H5AC_NOTIFY_ACTION_CHILD_CLEANED:
+        case H5AC_NOTIFY_ACTION_CHILD_UNSERIALIZED:
+        case H5AC_NOTIFY_ACTION_CHILD_SERIALIZED:
 	    /* do nothing */
 	    break;
 
diff --git a/src/H5HLcache.c b/src/H5HLcache.c
index b2ca839..3668d81 100644
--- a/src/H5HLcache.c
+++ b/src/H5HLcache.c
@@ -904,6 +904,8 @@ H5HL__cache_datablock_notify(H5C_notify_action_t action, void *_thing)
         case H5AC_NOTIFY_ACTION_ENTRY_CLEANED:
         case H5AC_NOTIFY_ACTION_CHILD_DIRTIED:
         case H5AC_NOTIFY_ACTION_CHILD_CLEANED:
+        case H5AC_NOTIFY_ACTION_CHILD_UNSERIALIZED:
+        case H5AC_NOTIFY_ACTION_CHILD_SERIALIZED:
 	    /* do nothing */
 	    break;
 
diff --git a/src/H5Ocache.c b/src/H5Ocache.c
index 1067b8c..19b91f8 100644
--- a/src/H5Ocache.c
+++ b/src/H5Ocache.c
@@ -600,6 +600,8 @@ H5O__cache_notify(H5AC_notify_action_t action, void *_thing)
 
         case H5AC_NOTIFY_ACTION_CHILD_DIRTIED:
         case H5AC_NOTIFY_ACTION_CHILD_CLEANED:
+	case H5AC_NOTIFY_ACTION_CHILD_UNSERIALIZED:
+	case H5AC_NOTIFY_ACTION_CHILD_SERIALIZED:
             /* do nothing */
             break;
 
@@ -989,6 +991,8 @@ H5O__cache_chk_notify(H5AC_notify_action_t action, void *_thing)
 
         case H5AC_NOTIFY_ACTION_CHILD_DIRTIED:
         case H5AC_NOTIFY_ACTION_CHILD_CLEANED:
+	case H5AC_NOTIFY_ACTION_CHILD_UNSERIALIZED:
+	case H5AC_NOTIFY_ACTION_CHILD_SERIALIZED:
             /* do nothing */
             break;
 
diff --git a/src/H5err.txt b/src/H5err.txt
index 9531df9..44c5a93 100644
--- a/src/H5err.txt
+++ b/src/H5err.txt
@@ -157,6 +157,7 @@ MINOR, ATOM, H5E_NOIDS, Out of IDs for group
 
 # Cache related errors
 MINOR, CACHE, H5E_CANTFLUSH, Unable to flush data from cache
+MINOR, CACHE, H5E_CANTUNSERIALIZE, Unable to mark metadata as unserialized
 MINOR, CACHE, H5E_CANTSERIALIZE, Unable to serialize data from cache
 MINOR, CACHE, H5E_CANTTAG, Unable to tag metadata in the cache
 MINOR, CACHE, H5E_CANTLOAD, Unable to load metadata into cache
@@ -170,6 +171,8 @@ MINOR, CACHE, H5E_CANTPIN, Unable to pin cache entry
 MINOR, CACHE, H5E_CANTUNPIN, Unable to un-pin cache entry
 MINOR, CACHE, H5E_CANTMARKDIRTY, Unable to mark a pinned entry as dirty
 MINOR, CACHE, H5E_CANTMARKCLEAN, Unable to mark a pinned entry as clean
+MINOR, CACHE, H5E_CANTMARKUNSERIALIZED, Unable to mark an entry as unserialized
+MINOR, CACHE, H5E_CANTMARKSERIALIZED, Unable to mark an entry as serialized
 MINOR, CACHE, H5E_CANTDIRTY, Unable to mark metadata as dirty
 MINOR, CACHE, H5E_CANTCLEAN, Unable to mark metadata as clean
 MINOR, CACHE, H5E_CANTEXPUNGE, Unable to expunge a metadata cache entry
diff --git a/test/cache_common.c b/test/cache_common.c
index daf9777..5151d65 100644
--- a/test/cache_common.c
+++ b/test/cache_common.c
@@ -1565,6 +1565,8 @@ notify(H5C_notify_action_t action, void *thing, int32_t entry_type)
         case H5C_NOTIFY_ACTION_ENTRY_CLEANED:
         case H5C_NOTIFY_ACTION_CHILD_DIRTIED:
         case H5C_NOTIFY_ACTION_CHILD_CLEANED:
+        case H5C_NOTIFY_ACTION_CHILD_UNSERIALIZED:
+        case H5C_NOTIFY_ACTION_CHILD_SERIALIZED:
 	    /* do nothing */
 	    break;
 
diff --git a/testpar/t_cache.c b/testpar/t_cache.c
index 2c164a2..8753325 100644
--- a/testpar/t_cache.c
+++ b/testpar/t_cache.c
@@ -2927,6 +2927,30 @@ datum_notify(H5C_notify_action_t action, void *thing)
             /* do nothing */
             break;
 
+        case H5AC_NOTIFY_ACTION_CHILD_UNSERIALIZED:
+            if ( callbacks_verbose ) {
+
+                HDfprintf(stdout,
+                      "%d: notify() action = child entry unserialized, idx = %d, addr = %ld.\n",
+                      world_mpi_rank, idx, (long)entry_ptr->header.addr);
+                fflush(stdout);
+            }
+
+            /* do nothing */
+            break;
+
+        case H5AC_NOTIFY_ACTION_CHILD_SERIALIZED:
+            if ( callbacks_verbose ) {
+
+                HDfprintf(stdout,
+                      "%d: notify() action = child entry serialized, idx = %d, addr = %ld.\n",
+                      world_mpi_rank, idx, (long)entry_ptr->header.addr);
+                fflush(stdout);
+            }
+
+            /* do nothing */
+            break;
+
 	default:
             nerrors++;
             ret_value = FAIL;