net_mlx5: probe of PCI device xxxx:xx:xx.x aborted after encountering an error: Cannot allocate memory

Solution Verified - Updated -

Issue

  • Unable to attach Single Root I/O Virtualization (SR-IOV) Virtual Functions(VF) on NUMA-1 as secondary interfaces on pods.

  • When pod tries to request SR-IOV VFs from the Physical Function(PF)/NICs associated with NUMA-1, it fails with the following error message:

    net_mlx5: probe of PCI device xx:xx:xx.x aborted after encountering an error: Cannot allocate memory

  • Why pod is not able to attach VFs from NUMA-1 but it succeed to attach the VFs from NUMA-0?

Environment

  • Red Hat OpenShift Container Platform (RHOCP)
    • 4

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