My program falls,when I use morphologyEx() in android native code

My program falls,when I use morphologyEx() in android native code. when i don't use morphologyEx(), my program move normally.

code:

cv::morphologyEx(input, output,cv::MORPH_OPEN,cv::Mat(),cv::Point(-1,-1),2);

Logcat:

@@@ ABORTING: INVALID HEAP ADDRESS IN dlfree
Fatal signal 11 (SIGSEGV) at 0xdeadbaad (code=1)

Why does the program fall? Is this bug　"opencv for android library" ?

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