Hi Jeff,
Original repro machine had ~1TB memory.

Previously attached log snip:
Memory: 1055972180K/1073051196K available (14339K kernel code, 2400K rwdata, 
5008K rodata, 2736K init, 4964K bss, 17079016K reserved, 0K cma-reserved)

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https://bugs.launchpad.net/bugs/1934620

Title:
  NVIDIA A100-80GB GPU fails to initialize in R750xa, BAR Address setup
  failed if SR-IOV is disabled in BIOS

Status in dellserver:
  Won't Fix
Status in linux package in Ubuntu:
  Confirmed

Bug description:
  Installing NVidia A100-80GB GPUs in R750XA fails to initialize BAR memory 
space for GPUs.
  Multiple error messages in kernel.log file.

  Summary:
  * Dell prefers to set SRIOV to disabled in bios globally
  * This bug does not occur IF:
      SRIOV is enabled in BIOS OR
      "pci=realloc=off" is passed to the kernel at boot time
  * This bug only affects systems with NVIDIA A100-80GB GPUs, it does not 
    affect systems with NVIDIA A100-40GB GPUs

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