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From: Marat Khalili <marat.khalili@huawei.com>
To: Stephen Hemminger <stephen@networkplumber.org>
CC: Konstantin Ananyev <konstantin.ananyev@huawei.com>, "dev@dpdk.org"
 <dev@dpdk.org>
Subject: RE: [PATCH v4 3/5] bpf: add a test for BPF ELF load
Thread-Topic: [PATCH v4 3/5] bpf: add a test for BPF ELF load
Thread-Index: AQHcTaV02m9YfHF+c0yX0F26edwMqbTnTMSQgAA0DTCAAGuygIAEJphA
Date: Mon, 10 Nov 2025 15:34:38 +0000
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> > RTE>>bpf_elf_load_autotest
> > BPF: resolve_xsym(40): EBPF_PSEUDO_CALL to external function: dummy_fun=
c1
> > ../../src/lib/bpf/bpf_validate.c:247:24: runtime error: signed integer =
overflow: 9223372036854775807
> + 2147483647 cannot be represented in type 'long int'
> >     #0 0x2b1fdca in eval_add ../../src/lib/bpf/bpf_validate.c:247
> >     #1 0x2b2b9dc in eval_alu ../../src/lib/bpf/bpf_validate.c:691
> >     #2 0x2b3b187 in evaluate ../../src/lib/bpf/bpf_validate.c:2446
> >     #3 0x2b3bf0f in __rte_bpf_validate ../../src/lib/bpf/bpf_validate.c=
:2537
> >     #4 0x2b19b33 in rte_bpf_load ../../src/lib/bpf/bpf_load.c:113
> >     #5 0x2b47d6d in bpf_load_elf ../../src/lib/bpf/bpf_load_elf.c:288
> >     #6 0x2b47fe8 in rte_bpf_elf_load ../../src/lib/bpf/bpf_load_elf.c:3=
20
> >     #7 0x66b4b8 in test_bpf_elf_load ../../src/app/test/test_bpf.c:3382
>=20
> Hmm. looks like a pre-existing BPF library bug since this code was never
> tested before.

Yes, that's correct. Sent some fixes for this and some other issues to the =
mailing list just now, maybe we should treat these problems separately.