1 files changed, 15 insertions, 1 deletions

diff --git a/rt-graph.c b/rt-graph.c
index ecb24cb..0a72134 100644
--- a/rt-graph.c
+++ b/rt-graph.c
@@ -94,6 +94,8 @@ int rt_graph_check_task_param(struct rt_graph_info *rtg_info,
                               unsigned long long *period)
 {
         struct event_format *event;
+        struct rt_task_params *params;
+        struct task_list *list;
         unsigned long long val;
         gint id;
         int ret = 0;
@@ -127,7 +129,19 @@ int rt_graph_check_task_param(struct rt_graph_info *rtg_info,
                 dprintf(3, "Read task_param (%d) record for task %d "
                         "(%llu, %llu)\n", id, *pid, *wcet, *period);
 
-                add_task_hash(rtg_info->tasks, *pid);
+                list = add_task_hash(rtg_info->tasks, *pid);
+                if (!list->data) {
+                        /* If this pid is plotted, sections of time might later
+                         * be viewed which are after this _param event. In this
+                         * case, that plot would never read a _param event and
+                         * would not know about the task's wcet and deadline.
+                         * Store them with the task to avoid this issue.
+                         */
+                        params = malloc_or_die(sizeof(*params));
+                        params->wcet = *wcet;
+                        params->period = *period;
+                        list->data = params;
+                }
 
                 if (*period > rtg_info->max_period)
                         rtg_info->max_period = *period;