Hi all, A crash occurs if the queue is full and param 3 is portMAX_DELAY. The thread is suppossed to block indefinately. INCLUDE_vTaskSuspend is set to 1. while(1)
  {
    xQueueSendToBack(m_Queue, &lQData,  portMAX_DELAY);
  } Regards,
Pradeep. D

Please read http://www.freertos.org/FAQ-how-to-use-the-FreeRTOS-support-forum.html before posting. Regards.