RedHat 7.3 crashed with APIC error message

Hello,

I am running RedHat 7.3 with the kernel version 2.4.18-19.7.xbigmem on IBM-x360 server. This server crashed with the following messages:

mp-bios bug: 8254 time not connected to io-apic

Kernel panic io-apic + timer doesn't work pester [email protected]

I also found these messages in syslog:

Oct  6 22:53:25 db1-1 kernel: WARNING: MP table in the EBDA can be UNSAFE, contact [email protected] if you experience SMP problems!

Oct  6 22:53:31 db1-1 kernel: testing the IO APIC.......................
Oct  6 22:53:31 db1-1 kernel:
Oct  6 22:53:31 db1-1 kernel:  WARNING: unexpected IO-APIC, please mail
Oct  6 22:53:31 db1-1 kernel:           to [email protected]
Oct  6 22:53:31 db1-1 kernel: .................................... done.

Please advice. Thank you.

-Ghaeini