static unsigned long rom_pl;
        static int die_nmi_called;
 
-       if (ulReason == DIE_NMI || ulReason == DIE_NMI_IPI) {
-               spin_lock_irqsave(&rom_lock, rom_pl);
-               if (!die_nmi_called)
-                       asminline_call(&cmn_regs, cru_rom_addr);
-               die_nmi_called = 1;
-               spin_unlock_irqrestore(&rom_lock, rom_pl);
-               if (cmn_regs.u1.ral != 0) {
-                       panic("An NMI occurred, please see the Integrated "
-                             "Management Log for details.\n");
-               }
+       if (ulReason != DIE_NMI && ulReason != DIE_NMI_IPI)
+               return NOTIFY_OK;
+
+       spin_lock_irqsave(&rom_lock, rom_pl);
+       if (!die_nmi_called)
+               asminline_call(&cmn_regs, cru_rom_addr);
+       die_nmi_called = 1;
+       spin_unlock_irqrestore(&rom_lock, rom_pl);
+       if (cmn_regs.u1.ral == 0) {
+               printk(KERN_WARNING "hpwdt: An NMI occurred, "
+                      "but unable to determine source.\n");
+       } else {
+               panic("An NMI occurred, please see the Integrated "
+                       "Management Log for details.\n");
        }
 
-       die_nmi_called = 0;
-       return NOTIFY_DONE;
+       return NOTIFY_STOP;
 }
 
 /*