Re: [PATCH bpf-next v3 4/7] samples/bpf: Extend RLIMIT_MEMLOCK for xdp_{sample_pkts, router_ipv4}
From: Jesper Dangaard Brouer <hidden>
Date: 2019-01-25 08:32:19
On Thu, 24 Jan 2019 22:47:44 +0100 Maciej Fijalkowski [off-list ref] wrote:
From: Maciej Fijalkowski <maciej.fijalkowski@intel.com> There is a common problem with xdp samples that happens when user wants to run a particular sample and some bpf program is already loaded. The default 64kb RLIMIT_MEMLOCK resource limit will cause a following error (assuming that xdp sample that is failing was converted to libbpf usage): libbpf: Error in bpf_object__probe_name():Operation not permitted(1). Couldn't load basic 'r0 = 0' BPF program. libbpf: failed to load object './xdp_sample_pkts_kern.o' Fix it in xdp_sample_pkts and xdp_router_ipv4 by setting RLIMIT_MEMLOCK to RLIM_INFINITY. Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com> Reviewed-by: Jakub Kicinski <redacted> --- samples/bpf/xdp_router_ipv4_user.c | 7 +++++++ samples/bpf/xdp_sample_pkts_user.c | 7 +++++++ 2 files changed, 14 insertions(+)
Acked-by: Jesper Dangaard Brouer <redacted> -- Best regards, Jesper Dangaard Brouer MSc.CS, Principal Kernel Engineer at Red Hat LinkedIn: http://www.linkedin.com/in/brouer