CONFIG_HARDLOCKUP_DETECTOR_BUDDY (not configurable)

modulename: watchdog_buddy.ko

configname: CONFIG_HARDLOCKUP_DETECTOR_BUDDY

Linux Kernel Configuration
└─>Kernel hacking
└─>Debug Oops, Lockups and Hangs
└─>HARDLOCKUP_DETECTOR_BUDDY
In linux kernel since version 6.5 (release Date: 2023-08-27)  
source code:
kernel/watchdog_buddy.c