Detect Soft Lockups

configname: CONFIG_SOFTLOCKUP_DETECTOR

Linux Kernel Configuration
└─>Kernel hacking
└─>Debug Lockups and Hangs
└─>Detect Soft Lockups
In linux kernel since version 3.10 (release Date: 2013-06-30)  
Say Y here to enable the kernel to act as a watchdog to detect
soft lockups.

Softlockups are bugs that cause the kernel to loop in kernel
mode for more than 20 seconds, without giving other tasks a
chance to run. The current stack trace is displayed upon
detection and the system will stay locked up.