ECS: Unexpected reboot due to NMI received on CPU

Summary: Unexpected reboot due to NMI received on CPU.

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Symptoms

ECS node is experiencing an unexpected reboot multiple times, core file got generated upon the reboot. By checking the stack trace in the dmesg log in the /var/crash/, the reboot was due to NMI detected on the CPU.

NMI standards for non-maskable interrupt, which is an interrupt with the highest priority, it occurs to signal attention for non-recoverable hardware errors.

2020-03-01-21:06/dmesg.txt:[5200025.129135] Uhhuh. NMI received for unknown reason 3d on CPU 0. 2020-03-01-21:06/dmesg.txt-[5200025.129135] Do you have a strange power-saving mode enabled? Checked the hardware for any issue and checked if BIOS is out-dated sudo bash memory.sh sudo ipmitool sel list sudo xdoctor /usr/share/emc-intel-firmware/flashupdt/flashupdt /i | grep "BIOS Version"

Cause

This could be either an operating system or hardware issue.

Resolution

A reimage might be sufficient. However, it is probably best to physically replace the node in case the issue persists post reimage.

Affected Products

Elastic Cloud Storage

Products

Elastic Cloud Storage
Article Properties
Article Number: 000081969
Article Type: Solution
Last Modified: 12 Sep 2025
Version:  5
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