PROBLEM:  (77036) (PATCH ID: OSF505-023)
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While running Classical IP over the lfa ATM driver, a kernel panic will
occur "simple_lock: minimum spl violation" if the following conditions
are true:
        1) The lfa driver is configured to use deferred interrupt
           processing (driver attribute "minimal_isr" is set to 1).
           Note:  This is the default for the V1.0.17 driver.
        2) lockmode 4 is being employed (generic attribute "lockmode"
           set to 4).
On systems where lockmode 4 is not employed, a cpu would hang instead.