Patch 16060007:R12.XLA.B hanging/failure

Hi
Apps 12.1.3

Applying RPC 16060007:R12.XLA.B. No pre req patches per read me.
1. applying 16060007:R12.XLA.B  
2. patch seemed to fail or hang

on Worker  Code      Context            Filename                    Status
------  --------  -----------------  --------------------------  --------------
    1  Run       AutoPatch R120     xlaapche.pkh                Running
    2  Run       AutoPatch R120     xlaaperr.pkh                Running
    3  Run       AutoPatch R120     xlaevevp.pkh                Running
    4  Run       AutoPatch R120     xlaevevt.pkh                Running
    5  Run       AutoPatch R120     xlajedfp.pkh                Running
    6  Run       AutoPatch R120     xlajelns.pkh                Running

adpatch log
Evaluating symbolic arguments for worker 1
  FAILED: file xlatabh.odf  on worker  1 for product xla username XLA.

adworker01 log shows

The following ORACLE error:
ORA-00054: resource busy and acquire with NOWAIT specified or timeout expired