Shutdown hangs due to E000 processes

I had this several times and these are the possible solutions: Shutdown hangs while EMON slaves are spawned for notification (Doc ID 1394945.1) In short, you either apply the patch described on the document or just kill the e000 process. In my case is this: oracle   10371     1  0 Jan28 ?        00:00:03 ora_e000_TESTDB