CONFIG_NMI_WATCHDOG is not available for thedefaultarchitecture x86.
Result is shown for architecture blackfin
Enable NMI watchdog to help debugging lockup on SMP
modulename: nmi.ko
configname: CONFIG_NMI_WATCHDOG
Linux Kernel Configuration
└─>Kernel hacking
└─>Enable NMI watchdog to help debugging lockup on SMP
In linux kernel since version 2.6.34 (release Date: 2010-05-16)
If any CPU in the system does not execute the period local timer
interrupt for more than 5 seconds, then the NMI handler dumps debug
information. This information can be used to debug the lockup.
interrupt for more than 5 seconds, then the NMI handler dumps debug
information. This information can be used to debug the lockup.