Screen of Death in any time and anywhere

I use cocos2dx to develop a game like drawing something with CCRenderTexture,I have finished it .but there is a bug that the game will be dead in a Indeterminate time.there is no any Error in the logcat. the game is stop and the screen is dead.please give me some help.there is something i have tried;
(1) delete all my jni code(fail)
(2) not to use springf and CCLOG in the other thread(fail)
(3) close OPENGL cache(fail)
(4) Check the pointer(fail)
(5) not to use any sound(fail)