Bug#986312: NVRM: request_mem_region failed for 0M @ 0x0.

[Andreas Beckmann]

On 02/04/2021 22.06, PICCA Frederic-Emmanuel wrote:
> All the graphical cards on the numa node 0 are not available on my computer.

what's the NUMA layout of the machine? what cpus do you have in there?

> We are using this computer in order to do data treatment in a scientific facility.
> 
> During the boot we have these error messages
> 
> Mar 29 13:08:12 re-grades-01 kernel: [    6.726771] NVRM: request_mem_region failed for 0M @ 0x0. This can
> Mar 29 13:08:12 re-grades-01 kernel: [    6.726771] NVRM: occur when a driver such as rivatv is loaded and claims
> Mar 29 13:08:12 re-grades-01 kernel: [    6.726771] NVRM: ownership of the device's registers.
> Mar 29 13:08:12 re-grades-01 kernel: [    6.726792] nvidia: probe of 0000:43:00.0 failed with error -1
...
> I would like to help debug this issue, but I do not know where to start.
> 
> thanks for considering


> [    22.870] (--) PCI: (67 at 0:0:0) 10de:1eb8:10de:12a2 rev 161, Mem @ 0x260d0000000/268435456, 0x261e0000000/33554432
> [    22.870] (--) PCI: (68 at 0:0:0) 10de:1eb8:10de:12a2 rev 161, Mem @ 0x26330000000/268435456, 0x26440000000/33554432
> [    22.870] (--) PCI: (69 at 0:0:0) 10de:1eb8:10de:12a2 rev 161, Mem @ 0x26590000000/268435456, 0x266a0000000/33554432
> [    22.870] (--) PCI: (70 at 0:0:0) 10de:2204:1043:87d5 rev 161, Mem @ 0x267f0000000/268435456, 0x26800000000/33554432, I/O @ 0x00006000/128
> [    22.870] (--) PCI:*(101 at 0:0:0) 1a03:2000:1458:1000 rev 65, Mem @ 0xd2000000/33554432, 0xd4000000/131072, I/O @ 0x00007000/128, BIOS @ 0x????????/131072
> [    22.870] (--) PCI: (131 at 0:0:0) 10de:1eb8:10de:12a2 rev 161, Mem @ 0x96000000/16777216, 0x66160000000/268435456, 0x66190000000/33554432
> [    22.871] (--) PCI: (132 at 0:0:0) 10de:1eb8:10de:12a2 rev 161, Mem @ 0x94000000/16777216, 0x66020000000/268435456, 0x66050000000/33554432
> [    22.871] (--) PCI: (133 at 0:0:0) 10de:2204:1043:87d5 rev 161, Mem @ 0x9a000000/16777216, 0x661c0000000/268435456, 0x661d0000000/33554432, I/O @ 0x0000d000/128, BIOS @ 0x????????/524288
> [    22.871] (--) PCI: (134 at 0:0:0) 10de:2204:1043:87d5 rev 161, Mem @ 0x98000000/16777216, 0x661a0000000/268435456, 0x661b0000000/33554432, I/O @ 0x0000c000/128, BIOS @ 0x????????/524288
> [    22.871] (--) PCI: (135 at 0:0:0) 10de:1eb8:10de:12a2 rev 161, Mem @ 0x92000000/16777216, 0x65ee0000000/268435456, 0x65f10000000/33554432

Great. Half of the bus ids are in hex, half in decimal.

How many cards do you have in there? And how many pci devices are there 
per card?

Have you tried different drivers? (tesla-450, tesla-460)
Have you tried with only one kind of cards (Tesla or Geforce) in there?
Have you tried with only a single card in there?

Andreas