libbpf: prog 'tp_xdp_redirect_err': on hyper-V linux-azure

[tariromukute]

Hi,

Firstly thank you for this project!

I am trying to compile and run xdp-trafficgen on a virtual machine on Azure. I am using a VM (Standard_D16ds_v4) with accelerated networking. When I compile the project I am getting the error below. I understand xdp_trafficgen requires support for XDP_REDIRECT. While the docs on Hyper-V driver state that XDP_REDIRECT action is not yet supported, the thread here suggests that this is now supported.

1. Is the error below due to XDP_REDIRECT not being supported?
2. If it is, is there support for it on Azure or another cloud provider perhaps?
3. If not, how can I go about the error below.

xdp-trafficgen
    CLANG    xdp_trafficgen.bpf.o
    LLC      xdp_trafficgen.bpf.o
    GEN      xdp_trafficgen.skel.h
libbpf: prog 'tp_xdp_redirect_err': bad map relo against 'redir_err_cnt' in section '.maps'
Error: failed to open BPF object file: Relocation failed
make[1]: *** [../lib/common.mk:124: xdp_trafficgen.skel.h] Error 91
make: *** [Makefile:40: xdp-trafficgen] Error 2

[tariromukute]

I re-setup the VM and tried again and it worked this time around. I used an ansible play for the set up so they both should be identical. I don't know why I was getting the error previously.

Closing the issue.