mlx4_core: command 0xc failed: fw status = 0x40 error seen at boot with Mellanox InfiniBand cards

Solution In Progress - Updated -

Issue

  • mlx4_core module produces this error at boot:

    kernel: mlx4_core 0000:06:00.0: command 0xc failed: fw status = 0x40
    

Environment

  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 6
  • Mellanox InfiniBand hardware

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