yahoo-eng-team team mailing list archive

[norman shen <1865120@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

We are testing OpenStack on Phytium,FT2000PLUS

root@compute01:~# lscpu 
Architecture:          aarch64
Byte Order:            Little Endian
CPU(s):                64
On-line CPU(s) list:   0-63
Thread(s) per core:    1
Core(s) per socket:    4
Socket(s):             16
NUMA node(s):          8
Model name:            Phytium,FT2000PLUS
CPU max MHz:           2200.0000
CPU min MHz:           1000.0000
BogoMIPS:              3600.00
NUMA node0 CPU(s):     0-7
NUMA node1 CPU(s):     8-15
NUMA node2 CPU(s):     16-23
NUMA node3 CPU(s):     24-31
NUMA node4 CPU(s):     32-39
NUMA node5 CPU(s):     40-47
NUMA node6 CPU(s):     48-55
NUMA node7 CPU(s):     56-63
Flags:                 fp asimd evtstrm crc32

The problem we initially met are we are not able to attach to more than
2 volumes (virtio-blk) if config drive enabled. We somehow work around
the problem by using scsi-bus instead.

But we are still interesting to make plug more than 2 virtio-blk devices
possible, and after some investigation I think `num_pcie_ports` might be
too small (looks like it default to 9 if unspecified), and `pcie-root`
does not allow hot plugging, and `pcie-root-port` does not allow more
than 1 slots, so the only way I am thinking to mitigate the problem is
to increase this option to maximum.

But the current problem is vms with previously working images failed to
boot and when I try to virsh console, I only saw the uefi shell console.

Maybe this is not a bug for `code`, but I definitely think it is
necessary to improve the doc and make it easier to understand these
terms. I am glad to provide to additional details if asked. thanks

** Affects: nova
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1865120

Title:
  arm64 vm boot failed when set num_pcie_ports to 28

Status in OpenStack Compute (nova):
  New

Bug description:
  We are testing OpenStack on Phytium,FT2000PLUS

  root@compute01:~# lscpu 
  Architecture:          aarch64
  Byte Order:            Little Endian
  CPU(s):                64
  On-line CPU(s) list:   0-63
  Thread(s) per core:    1
  Core(s) per socket:    4
  Socket(s):             16
  NUMA node(s):          8
  Model name:            Phytium,FT2000PLUS
  CPU max MHz:           2200.0000
  CPU min MHz:           1000.0000
  BogoMIPS:              3600.00
  NUMA node0 CPU(s):     0-7
  NUMA node1 CPU(s):     8-15
  NUMA node2 CPU(s):     16-23
  NUMA node3 CPU(s):     24-31
  NUMA node4 CPU(s):     32-39
  NUMA node5 CPU(s):     40-47
  NUMA node6 CPU(s):     48-55
  NUMA node7 CPU(s):     56-63
  Flags:                 fp asimd evtstrm crc32

  The problem we initially met are we are not able to attach to more
  than 2 volumes (virtio-blk) if config drive enabled. We somehow work
  around the problem by using scsi-bus instead.

  But we are still interesting to make plug more than 2 virtio-blk
  devices possible, and after some investigation I think
  `num_pcie_ports` might be too small (looks like it default to 9 if
  unspecified), and `pcie-root` does not allow hot plugging, and `pcie-
  root-port` does not allow more than 1 slots, so the only way I am
  thinking to mitigate the problem is to increase this option to
  maximum.

  But the current problem is vms with previously working images failed
  to boot and when I try to virsh console, I only saw the uefi shell
  console.

  Maybe this is not a bug for `code`, but I definitely think it is
  necessary to improve the doc and make it easier to understand these
  terms. I am glad to provide to additional details if asked. thanks

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