Lock file left by a different patch, Opatch would not try re-using the lock file.

Opatch was interrupted during the patching process and reported the following error after re-execution:

Utilsession Failed:lock file left by a different patch, Opatch would not try re-using the Lock file. Log File Location:/u11/app/oracle/product/11.2.0/dbhome_1/cfgtoollogs/opatch/14084247_apr_16_2016_13_21_29/ Apply2016-04-16_13-21-29pm_1.logopatch failed with error code 73

Viewing the log file also reported similar errors.
The reason is that the lock is still held on the local inventory after the previous Opatch session failed

Workaround:

1. Take a backup of  $ORACLE _home/.patch_storage2. Remove $ORACLE _home/.patch_storage/patch_locked% rm $ORACLE _home/.patch_storage/patch_locked3. Create $ORACLE _home/.patch_storage/patch_free% Touch $ORACLE _home/.patch_storage/patch_free4. Verify that "Opatch lsinventory" no longer reports the error% Opatch Lsinventory-detail

Lock file left by a different patch, Opatch would not try re-using the lock file.