Panic (Reboot) On Soft Lockups

configname: CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC

Linux Kernel Configuration
└─>Kernel hacking
└─>Debug Oops, Lockups and Hangs
└─>Panic (Reboot) On Soft Lockups
In linux kernel since version 2.6.27 (release Date: 2008-10-09)
Set to a non-zero value N to enable the kernel to panic on "soft
lockups", which are bugs that cause the kernel to loop in kernel
mode for more than (N * 20 seconds) (configurable using the
watchdog_thresh sysctl), without giving other tasks a chance to run.

The panic can be used in combination with panic_timeout,
to cause the system to reboot automatically after a
lockup has been detected. This feature is useful for
high-availability systems that have uptime guarantees and
where a lockup must be resolved ASAP.

Say 0 if unsure.