Detect Hard Lockups

configname: CONFIG_HARDLOCKUP_DETECTOR

Linux Kernel Configuration
└─>Debug Lockups and Hangs
└─>Detect Hard Lockups
In linux kernel since version 2.6.36 (release Date: 2010-10-20)  
Say Y here to enable the kernel to act as a watchdog to detect
hard lockups.

Hardlockups are bugs that cause the CPU to loop in kernel mode
for more than 10 seconds, without letting other interrupts have a
chance to run. The current stack trace is displayed upon detection
and the system will stay locked up.