DB2 error SQL6048N is generated when attempting to start Blueworx Voice Response

If message SQL6048N is reported when starting Blueworx Voice Response, this indicates that DB2 is not running. However, on issuing a db2start command, you might see the following errors displayed, indicating that DB2 has failed to start:

exec(): 0509-036 Cannot load program db2stop because of the following errors:
0509-130 Symbol resolution failed for /usr/lib/threads/libc.a?aio_64.o
because:
0509-136   Symbol kaio_rdwr64 (number 0) is not exported from
    dependent module /unix.
0509-136   Symbol listio64 (number 1) is not exported from
    dependent module /unix.
0509-136   Symbol acancel64 (number 2) is not exported from
    dependent module /unix.
0509-136   Symbol iosuspend64 (number 3) is not exported from
    dependent module /unix.
0509-136   Symbol aio_nwait (number 4) is not exported from
    dependent module /unix.
0509-130 Symbol resolution failed for
/usr/opt/db2_08_01/lib64/libdb2e.a?shr_64.o? because:
 0509-136   Symbol aio_nwait (number 506) is not exported from
     dependent module /usr/lib/threads/libc.a?aio_64.o?.
 0509-150   Dependent module libdb2e.a(shr_64.o) could not be loaded.
 0509-026 System error: Cannot run a file that does not have a valid
format.
 0509-192 Examine .loader section symbols with the
   'dump -Tv' command.