COMM_FAILURE: omniORB.COMM_FAILURE_WaitingForReply

[sahobo]

Working with our real Nextage robot, we get the following error frequently:

Traceback (most recent call last):
	 [...]
	  File "robo/moves.py", line 56, in stop
	    robot.clearOfGroup('larm')
	  File "/opt/ros/indigo/lib/python2.7/dist-packages/hrpsys/hrpsys_config.py", line 1520, in clearOfGroup
	    self.seq_svc.clearOfGroup(gname, tm)
	  File "/opt/ros/indigo/lib/python2.7/dist-packages/hrpsys/SequencePlayerService_idl.py", line 188, in clearOfGroup
	    return _omnipy.invoke(self, "clearOfGroup", _0_OpenHRP.SequencePlayerService._d_clearOfGroup, args)
	COMM_FAILURE: CORBA.COMM_FAILURE(omniORB.COMM_FAILURE_WaitingForReply, CORBA.COMPLETED_MAYBE)

We have observed that it mainly happens after some time has passed by (eg. after an experiment of 3 hours), and always after robot.ClearOfGroup - so far, never after any other command.

Does someone have any insights as to why this happens?

I am using hrpsys 315.2.8 on the QNX and have asked elsewhere how to update. Is someone aware if such an update could fix this issue as well?