KERNEL PANIC: OS 7.1.1503 KERNEL 3.10.0-514.26.2.el7

[Addi_636]

Getting periodic reboots of numerous machines in prod.
Using CentOS 7.1.1503 with KERNEL 3.10.0-514.26.2.el7.
Can provide vmcore and vmcore_dmesg.txt as well. Kindly help.
Used crash utility which shows following basic info:

KERNEL: /usr/lib/debug/lib/modules/3.10.0-514.26.2.el7.x86_64/vmlinux
DUMPFILE: /var/crash/127.0.0.1-2017-10-12-06:49:07/vmcore [PARTIAL DUMP]
CPUS: 48
DATE: Thu Oct 12 06:48:48 2017
UPTIME: 04:57:21
LOAD AVERAGE: 9.95, 3.80, 1.78
TASKS: 4844
NODENAME: <machine name removed>
RELEASE: 3.10.0-514.26.2.el7.x86_64
VERSION: #1 SMP Tue Jul 4 15:04:05 UTC 2017
MACHINE: x86_64 (2600 Mhz)
MEMORY: 383.9 GB
PANIC: "Kernel panic - not syncing: Hard LOCKUP"
PID: 0
COMMAND: "swapper/23"
TASK: ffff8830b7ecce70 (1 of 48) [THREAD_INFO: ffff8830b7ef4000]
CPU: 23
STATE: TASK_RUNNING (PANIC)

[avij]

Does this happen on a CentOS 7.4.1708 kernel? Try reading the release notes (esp. its Known Issues section) and then update your system accordingly.