[dpdk-users] Invalid NUMA socket when running helloworld on VM linux
Changchun Zhang
changchun.zhang at oracle.com
Mon Mar 4 20:32:00 CET 2019
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 at gmail.com]
Sent: Sunday, March 03, 2019 4:58 AM
To: Changchun Zhang <changchun.zhang at oracle.com>
Cc: users at 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 at oracle.com"changchun.zhang at 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
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