fix race on startup and support for cpu hotplug

[lttngtop.git] / src / cputop.c

diff --git a/src/cputop.c b/src/cputop.c
index 1b9a129c2e34c399048a3005e5264362912f6dee..3615085852ecad469a9cbde83c39911dbf781439 100644 (file)
--- a/src/cputop.c
+++ b/src/cputop.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2011 Julien Desfossez
+ * Copyright (C) 2011-2012 Julien Desfossez
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License Version 2 as
@@ -33,7 +33,8 @@ void update_cputop_data(unsigned long timestamp, int64_t cpu, int prev_pid,
                elapsed = timestamp - tmpcpu->task_start;
                tmpcpu->current_task->totalcpunsec += elapsed;
                tmpcpu->current_task->threadstotalcpunsec += elapsed;
-               if (tmpcpu->current_task->pid != tmpcpu->current_task->tid)
+               if (tmpcpu->current_task->threadparent &&
+                               tmpcpu->current_task->pid != tmpcpu->current_task->tid)
                        tmpcpu->current_task->threadparent->threadstotalcpunsec += elapsed;
        }