Re: [dpdk-users] Invalid NUMA socket when running helloworld on VM linux

[Changchun Zhang <changchun.zhang@oracle.com>]

Thank you Dheeraj, but looks like the system is not allowing me to change it.

I saw in preivous thread that it is suggested to ignore this log at all. 

http://mails.dpdk.org/archives/users/2017-December/002742.html

 

Does it make sense?

 

Changchun (Alex)

 

From: Dheeraj Dang [mailto:dheerajdang138@gmail.com] 
Sent: Sunday, March 03, 2019 4:58 AM
To: Changchun Zhang <changchun.zhang@oracle.com>
Cc: users@dpdk.org
Subject: Re: [dpdk-users] Invalid NUMA socket when running helloworld on VM linux

 

Hi Changchun, 

You can set numa_node using this command

 

echo 0 > /sys/devices/pci0000\:00/<pci_id>/numa_node (if numa node is 0)

echo 1 > /sys/devices/pci0000\:00/<pci_id>/numa_node (if numa node is 1)

In logs, you are seeing its invalid value i.e -1. 



Regards

Dheeraj Dang

 

 

On Sun, Mar 3, 2019 at 4:22 AM Changchun Zhang <HYPERLINK "mailto:changchun.zhang@oracle.com"changchun.zhang@oracle.com> wrote:

 

Hi Gurus,



I launched a virtual box based linux on my windows, and my PC is thinkpad T480. 

After configured the huge pages as number of 2MBs and the cpu number as 4 on the vm linux, I build DPDK and run the example of hellowworld but get the below output, in which I saw the "invalid NUMA socket". What does it mean and does it matter, as I see the hello from core # is also printed.



[~ build]$ sudo ./helloworld 

EAL: Detected 4 lcore(s)

EAL: Detected 1 NUMA nodes

EAL: Multi-process socket /var/run/dpdk/rte/mp_socket

EAL: Probing VFIO support...

EAL: PCI device 0000:00:03.0 on NUMA socket -1

EAL:   Invalid NUMA socket, default to 0

EAL:   probe driver: 8086:100e net_e1000_em

hello from core 1

hello from core 2

hello from core 3

hello from core 0