Not enough cores to enable shared core support

[JackKuo-tw]

Bug Report

Current Behavior

My ONVM is running in KVM + QEMU with 2 e1000 network adaptors. Everything is fine except for the shared cores feature.

Expected behavior/code

Run the manager as normal.

Steps to reproduce

If this problem cannot be reproduced, I can provide the qcow2 image.

Environment

• OS: Ubuntu 20.04
• onvm version: v20.10
• dpdk version: 20.05.0

Possible Solution

None.

Additional context/Screenshots

Invoking manager command:

./go.sh -k 1 -n 0xF8 -s stdout -c

Invoking QEMU command:

sudo qemu-system-x86_64 -smp 8 -cpu Skylake-Server \
-m 4g -vga virtio -hda ubuntu20.04.qcow2 \
-nic tap,model=e1000 \
-nic tap,model=e1000 \
-accel kvm

[kevindweb]

@JackKuo-tw we updated our manager go.sh syntax, so if you just type ./go.sh, you will see a few options. This one should fix your problem though. ./go.sh -k 1 -n 0xF0 -m 0,1,2,3 -s stdout -c. The manager explicitly needs more cores than usual for shared core, so this will give the manager 4 cores for example (-m 0,1,2,3). This worked for me on a normal non-qemu environment, hopefully it helps you.

[JackKuo-tw]

@kevindweb Thanks for your help. But another problem is that my NIC doesn't have 2 ports...

[kevindweb]

Can you take a screenshot of your dpdk setup? Do you have a port initialized? The command I sent is set for 1 port, so you might not have set up the port correctly? If you want to test without a NIC bound, just set -k 0 instead.

[JackKuo-tw]

@kevindweb You're right. Afer with -k 0 arg, it works! Thanks a lot! And here is the DPDK setup: