dmesg prints 'nvme0: Admin Cmd(0x7f), I/O Error (sct 0x0 / sc 0x1)' error

This document (000021264) is provided subject to the disclaimer at the end of this document.


SUSE Linux Enterprise Server 15
SUSE Linux Enterprise Server 12


On a normal running system, 'dmesg' prints the following error messages:

'nvme0: Admin Cmd(0x7f), I/O Error (sct 0x0 / sc 0x1)'


These messages can be safely ignored.


NVMe commands with opcode 0x7F are "NVMe Vendor Specific Commands".

They allow the host OS to send vendor-specific additional or customized commands to the NVMe controller.

In this case the controller responded with 'invalid opcode' (sc 0x1) which indicates that the controller does not support that specific command received.
The OS itself does not issue these commands; they usually come from other third-party tools that are not part of the OS.


This Support Knowledgebase provides a valuable tool for SUSE customers and parties interested in our products and solutions to acquire information, ideas and learn from one another. Materials are provided for informational, personal or non-commercial use within your organization and are presented "AS IS" WITHOUT WARRANTY OF ANY KIND.

  • Document ID:000021264
  • Creation Date: 02-Nov-2023
  • Modified Date:02-Nov-2023
    • SUSE Linux Enterprise Server

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