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Tue, 9 Nov 2021 11:08:02 -0500 (EST) From: Thomas Monjalon <thomas@monjalon.net> To: Vladimir Medvedkin <vladimir.medvedkin@intel.com>, David Marchand <david.marchand@redhat.com>, Lance Richardson <lance.richardson@broadcom.com> Cc: dev <dev@dpdk.org>, "Ananyev, Konstantin" <konstantin.ananyev@intel.com> Date: Tue, 09 Nov 2021 17:08:00 +0100 Message-ID: <2761655.DagZRsOc3m@thomas> In-Reply-To: <CAJFAV8wxOVF8a6beLwhdSMW=2ax08AisHXodJ+viU64yN=G4kw@mail.gmail.com> References: <CADyeNEBvs_rHc-2A2ST8U-NEiv7seD+4H0j2vLV7bat7BLsJhg@mail.gmail.com> <CAJFAV8wxOVF8a6beLwhdSMW=2ax08AisHXodJ+viU64yN=G4kw@mail.gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="UTF-8" Subject: Re: [dpdk-dev] Build failures in 21.11-rc2 X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions <dev.dpdk.org> List-Unsubscribe: <https://mails.dpdk.org/options/dev>, <mailto:dev-request@dpdk.org?subject=unsubscribe> List-Archive: <http://mails.dpdk.org/archives/dev/> List-Post: <mailto:dev@dpdk.org> List-Help: <mailto:dev-request@dpdk.org?subject=help> List-Subscribe: <https://mails.dpdk.org/listinfo/dev>, <mailto:dev-request@dpdk.org?subject=subscribe> Errors-To: dev-bounces@dpdk.org Sender: "dev" <dev-bounces@dpdk.org> 09/11/2021 16:57, David Marchand: > On Tue, Nov 9, 2021 at 4:53 PM Lance Richardson > <lance.richardson@broadcom.com> wrote: > > > > 21.11-rc2 builds are failing on CentOS 8.4, apparently because > > the intrinsic _mm512_set_epi8() is not defined in the GCC > > headers (see example below). >=20 > Thanks for reporting Lance. > It rings a bell, think it was mentionned in the past. CI compilation was passing: http://mails.dpdk.org/archives/test-report/2021-November/238534.html I would like to better understand. [...] > > Here is a GCC patch to add this intrinsic: > > https://www.mail-archive.com/gcc-patches@gcc.gnu.org/msg188664.html > > > > BTW, GCC 10.2.1 (via "scl enable gcc-toolset-10") is able to build > > 21.11-rc2 successfully on CentOS 8.4. > > > > Lance > > > > # gcc --version > > gcc (GCC) 8.4.1 20200928 (Red Hat 8.4.1-1) [...] > > ../lib/hash/rte_thash_x86_gfni.h:59:24: error: implicit declaration of > > function =E2=80=98_mm512_set_epi8=E2=80=99; did you mean =E2=80=98_mm51= 2_set1_epi8=E2=80=99? What is different in your setup compared to the CI?