default or selected kernelversion does not have config value CONFIG_HARDLOCKUP_CHECK_TIMESTAMP.
Result is shown for kernelversion 6.9-rc5
CONFIG_HARDLOCKUP_CHECK_TIMESTAMP (not configurable)
configname: CONFIG_HARDLOCKUP_CHECK_TIMESTAMP
Linux Kernel Configuration
└─>Kernel hacking
└─>Debug Oops, Lockups and Hangs
└─>HARDLOCKUP_CHECK_TIMESTAMP