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Date:   Thu, 16 May 2019 01:42:08 +0200
From:   Daniel Borkmann <>
To:     Stanislav Fomichev <>,,
Subject: Re: [PATCH bpf] libbpf: don't fail when feature probing fails

On 05/15/2019 05:38 AM, Stanislav Fomichev wrote:
> Otherwise libbpf is unusable from unprivileged process with
> kernel.kernel.unprivileged_bpf_disabled=1.
> All I get is EPERM from the probes, even if I just want to
> open an ELF object and look at what progs/maps it has.
> Instead of dying on probes, let's just pr_debug the error and
> try to continue.
> Signed-off-by: Stanislav Fomichev <>

Good catch, applied, thanks!

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