UNAVOLACC

Message        volatile access appears unaligned, but must be
               aligned at run-time to ensure atomicity and byte
               granularity

Description    The compiler has detected an unaligned access to a
               volatile variable.  In order to meet atomicity and
               granularity requirements of volatile, the access will
               be done using an aligned instruction.  This may cause
               an alignment fault at runtime if the access is
               unaligned.

User Action    Make sure volatile objects are aligned on a natural
               boundary.