Listener error

I just update oracle patchset from 92060 to 92080, then got listener error below, any idea?

LSNRCTL> status
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC)))
TNS-12618: TNS:versions are incompatible
LSNRCTL> start
Starting /apps/oracle/product/9206/bin/tnslsnr: please wait...

TNSLSNR for HPUX: Version 9.2.0.8.0 - Production
System parameter file is /apps/oracle/product/9206/network/admin/listener.ora
Log messages written to /apps/oracle/product/9206/network/log/listener.log
Error listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC)))
TNS-12542: TNS:address already in use
TNS-12560: TNS:protocol adapter error
TNS-00512: Address already in use
HPUX Error: 226: Address already in use

your listener is still running

You can do a

Code:

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ps -ef | grep lsn

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to see what listeners are running.

Before apply oracle patch, all oracle processes need to be stopped, how to grep/kill all oracle processes. Databases can be shut down from dbshut, lsnrctl can be stopped manully. What's else?