1) plugged some memory leaks 2) call _exit(), not exit() from subprocess to prevent stdio buffers from    being flushed twice
1) plugged some memory leaks
2) call _exit(), not exit() from subprocess to prevent stdio buffers from
   being flushed twice

devzero2000/RPM5,devzero2000/RPM5,devzero2000/RPM5,devzero2000/RPM5,devzero2000/RPM5,devzero2000/RPM5,devzero2000/RPM5