SMP_SANITY_CNT

   SMP_SANITY_CNT establishes, in 10-millisecond intervals, the
   timeout period for each CPU in a symmetric multiprocessing (SMP)
   system. Each CPU in an SMP system monitors the sanity timer of
   one other CPU in the configuration to detect hardware or software
   failures. If allowed to go undetected, these failures could cause
   the cluster to hang. A timeout causes a CPUSANITY bugcheck.

   The default value is 300 milliseconds (30 10-millisecond
   intervals).