netdev - Re: Error running AF_XDP sample application

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Date:   Thu, 9 Aug 2018 18:51:07 -0700
From:   Jakub Kicinski <jakub.kicinski@...ronome.com>
To:     kdjimeli <kdjimeli@...lia.com>
Cc:     netdev@...r.kernel.org
Subject: Re: Error running AF_XDP sample application

On Thu, 09 Aug 2018 18:18:08 +0200, kdjimeli wrote:
> Hello,
> 
> I have been trying to test a sample AF_XDP program, but I have been
> experiencing some issues.
> After building the sample code
> https://github.com/torvalds/linux/tree/master/samples/bpf,
> when running the xdpsock binary, I get the errors
> "libbpf: failed to create map (name: 'xsks_map'): Invalid argument"
> "libbpf: failed to load object './xdpsock_kern.o"
> 
> I tried to figure out the cause of the error but all I know is that it
> occurs at line 910 with the function
> call "bpf_prog_load_xattr(&prog_load_attr, &obj, &prog_fd)".
> 
> Please I would like to inquire what could be a possible for this error.

which kernel version are you running?