netdev - Re: [PATCH bpf] tools/bpf: fix test

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Message-ID: <652552a0-c73c-a726-23f6-9336816e111c@iogearbox.net>
Date:   Fri, 22 Jun 2018 00:33:33 +0200
From:   Daniel Borkmann <daniel@...earbox.net>
To:     Yonghong Song <yhs@...com>, ast@...com, netdev@...r.kernel.org
Cc:     kernel-team@...com
Subject: Re: [PATCH bpf] tools/bpf: fix test_sockmap failure

On 06/21/2018 07:02 PM, Yonghong Song wrote:
> On one of our production test machine, when running
> bpf selftest test_sockmap, I got the following error:
>   # sudo ./test_sockmap
>   libbpf: failed to create map (name: 'sock_map'): Operation not permitted
>   libbpf: failed to load object 'test_sockmap_kern.o'
>   libbpf: Can't get the 0th fd from program sk_skb1: only -1 instances
>   ......
>   load_bpf_file: (-1) Operation not permitted
>   ERROR: (-1) load bpf failed
> 
> The error is due to not-big-enough rlimit
>   struct rlimit r = {10 * 1024 * 1024, RLIM_INFINITY};
> 
> The test already includes "bpf_rlimit.h", which sets current
> and max rlimit to RLIM_INFINITY. Let us just use it.
> 
> Signed-off-by: Yonghong Song <yhs@...com>

Agree, applied to bpf, thanks Yonghong!