这个闪退,如何排查

creator 2.0.9

05-15 10:31:51.597 I/Process ( 1617): Sending signal. PID: 3897 SIG: 3
05-15 10:31:51.597 I/dalvikvm( 3897): threadid=3: reacting to signal 3
05-15 10:31:52.597 W/dalvikvm( 3897): threadid=3: spin on suspend #1 threadid=2 (pcf=0)
05-15 10:31:54.537 E/ActivityManager( 1617): PID: 3897
05-15 10:31:54.627 I/ActivityManager( 1617): Killing 3897:com.dyf.xxzpfree/u0a146 (adj 0): user request after error
05-15 10:31:55.117 W/WindowManager( 1617): mDisplayId=0 mSession=Session{41cdcf30 3897:u0a10146} mClient=android.os.BinderProxy@41d1f950
05-15 10:31:55.127 W/WindowManager( 1617): mDisplayId=0 mSession=Session{41cdcf30 3897:u0a10146} mClient=android.os.BinderProxy@41d8ab08
05-15 10:31:55.127 W/InputMethodManagerService( 1617): Got RemoteException sending setActive(false) notification to pid 3897 uid 10146