This bug is awaiting verification that the linux-
nvidia-6.11/6.11.0-1003.3 kernel in -proposed solves the problem. Please
test the kernel and update this bug with the results. If the problem is
solved, change the tag 'verification-needed-noble-linux-nvidia-6.11' to
'verification-done-noble-linux-nvidia-6.11'. If the problem still
exists, change the tag 'verification-needed-noble-linux-nvidia-6.11' to
'verification-failed-noble-linux-nvidia-6.11'.


If verification is not done by 5 working days from today, this fix will
be dropped from the source code, and this bug will be closed.


See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how
to enable and use -proposed. Thank you!


** Tags added: kernel-spammed-noble-linux-nvidia-6.11-v2 
verification-needed-noble-linux-nvidia-6.11

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https://bugs.launchpad.net/bugs/2094821

Title:
  PCI resources unassigned with Bluefield3 switch

Status in linux-nvidia package in Ubuntu:
  Invalid
Status in linux-nvidia-6.11 package in Ubuntu:
  Invalid
Status in linux-nvidia source package in Noble:
  Fix Committed
Status in linux-nvidia-6.11 source package in Noble:
  Fix Committed

Bug description:
  System with Mellanox Bluefield3 with a Bluefield3 card and 4 NVME when 
probing will see at dmesg some pci resources unassigned. 
  Will see these messages at dmesg:
  [    8.670754] pci 0006:03:00.0: BAR 0: assigned [mem 
0x6300c0000000-0x6300c1ffffff 64bit pref]
  [    8.679447] pci 0006:03:00.1: BAR 0: assigned [mem 
0x6300c2000000-0x6300c3ffffff 64bit pref]
  [    8.688134] pci 0006:03:00.2: BAR 0: no space for [mem size 0x00800000 
64bit pref]
  [    8.695876] pci 0006:03:00.2: BAR 0: failed to assign [mem size 0x00800000 
64bit pref]
  [    8.703974] pci 0006:03:00.0: BAR 7: no space for [mem size 0x02000000 
64bit pref]
  [    8.711714] pci 0006:03:00.0: BAR 7: failed to assign [mem size 0x02000000 
64bit pref]
  [    8.719811] pci 0006:03:00.1: BAR 7: no space for [mem size 0x02000000 
64bit pref]
  [    8.727553] pci 0006:03:00.1: BAR 7: failed to assign [mem size 0x02000000 
64bit pref]
  [    8.735650] pci 0006:03:00.0: BAR 6: assigned [mem 
0x630040000000-0x6300400fffff pref]
  [    8.743748] pci 0006:03:00.1: BAR 6: assigned [mem 
0x630040100000-0x6300401fffff pref]
  [    8.751845] pci 0006:03:00.0: BAR 0: assigned [mem 
0x6300c0000000-0x6300c1ffffff 64bit pref]
  [    8.760531] pci 0006:03:00.1: BAR 0: assigned [mem 
0x6300c2000000-0x6300c3ffffff 64bit pref]
  [    8.769217] pci 0006:03:00.2: BAR 0: no space for [mem size 0x00800000 
64bit pref]
  [    8.776956] pci 0006:03:00.2: BAR 0: failed to assign [mem size 0x00800000 
64bit pref]
  [    8.785052] pci 0006:03:00.0: BAR 6: assigned [mem 
0x630040000000-0x6300400fffff pref]
  [    8.793150] pci 0006:03:00.1: BAR 6: assigned [mem 
0x630040100000-0x6300401fffff pref]
  [    8.801247] pci 0006:03:00.1: BAR 7: no space for [mem size 0x02000000 
64bit pref]
  [    8.808987] pci 0006:03:00.1: BAR 7: failed to assign [mem size 0x02000000 
64bit pref]
  [    8.817086] pci 0006:03:00.0: BAR 7: no space for [mem size 0x02000000 
64bit pref]
  [    8.824828] pci 0006:03:00.0: BAR 7: failed to assign [mem size 0x02000000 
64bit pref]

  ...
  [    9.180489] pci_bus 0006:00: Some PCI device resources are unassigned, try 
booting with pci=realloc

  We were using the kernel parameter pci=realloc to avoid the failure but patch 
in this lore discussion 
  https://lore.kernel.org/all/20241204022457.51322-1-kaihe...@nvidia.com/
  fixes the issue.

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