ESXi Host Hardware Alert Triggered: <NMLX_ERR> nmlx5_QueryVnicEnv:1890 command failed, status bad operation (0x2)

Products

• VMware vSphere ESXi 8.0

Issue/Introduction

The following message may appear under Host > Monitor > Events in the vSphere Client:

Alarm 'host error' on <host_ip_or_fqdn> triggered by event <event_id> Issue detected on <host_ip_or_fqdn> in Cloud: <NMLX_ERR> nmlx5_QueryVnicEnv:1890 command failed, status bad operation(0x2), syndrome 0x3590f5 (####-##-##T##:##:##.##Z cpu<number>:#######)".

If the "Send email notifications" option is enabled, the administrator will also receive a HostErrorAlarm email containing the same information.

Environment

VMware ESXi 8.0

Cause

This alert is generated by the NMLX5 driver due to a firmware bug in the physical network adapter (VMNIC).
The issue occurs when the pNIC firmware version is too old or incompatible with the ESXi driver.

Resolution

Verify the firmware version of the physical network adapter (VMNIC).

• If the firmware version is listed as compatible, update the firmware to the latest available version from the hardware vendor.

• If the firmware version is not compatible, contact the hardware vendor for the latest supported firmware update.