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Mon, 25 Jan 2021 06:35:17 -0800 (PST) X-Google-Smtp-Source: ABdhPJzjOj10KjstHcqeUxjCwhM4iH8vc/La8K5sEelfod8djvqokA+8/p6uMn26DxKQHPP1rMz7PE/jUI6BEN4FOOU= X-Received: by 2002:a05:6102:21cd:: with SMTP id r13mr891776vsg.5.1611585317705; Mon, 25 Jan 2021 06:35:17 -0800 (PST) MIME-Version: 1.0 References: <20201215021945.103396-1-leyi.rong@intel.com> <DM6PR12MB3945A6FE02C47F856D48415BA4A20@DM6PR12MB3945.namprd12.prod.outlook.com> <CAJFAV8y3m4ucODUPazNZR2gMJ2hDiVpkbOmUXe4B5sGCL2J5QA@mail.gmail.com> <5859779.zrh4IzKrC7@thomas> <CAJFAV8y1RikOfDfQ5goDQmbr-z4weZU+iB7=7hCsvXj8tSaO7Q@mail.gmail.com> <MWHPR12MB14722E85A8F79F856ADDEFFEDAA20@MWHPR12MB1472.namprd12.prod.outlook.com> <b51ffeb0-e609-d996-58c5-98fd135bb6ff@intel.com> <0b572eb2-8abe-e673-dd01-9db6cbaf3b0f@intel.com> In-Reply-To: <0b572eb2-8abe-e673-dd01-9db6cbaf3b0f@intel.com> From: David Marchand <david.marchand@redhat.com> Date: Mon, 25 Jan 2021 15:35:06 +0100 Message-ID: <CAJFAV8xkBvO3ALYzukwtCZOB75yaA8ii26rZ=dUQA2fuzu6zhw@mail.gmail.com> To: "Kadam, Pallavi" <pallavi.kadam@intel.com> Cc: Ferruh Yigit <ferruh.yigit@intel.com>, Ali Alnubani <alialnu@nvidia.com>, NBU-Contact-Thomas Monjalon <thomas@monjalon.net>, "Richardson, Bruce" <bruce.richardson@intel.com>, Tal Shnaiderman <talshn@nvidia.com>, Odi Assli <odia@nvidia.com>, "Rong, Leyi" <leyi.rong@intel.com>, "Zhang, Qi Z" <qi.z.zhang@intel.com>, "Lu, Wenzhuo" <wenzhuo.lu@intel.com>, "Xing, Beilei" <beilei.xing@intel.com>, "Menon, Ranjit" <ranjit.menon@intel.com>, "dev@dpdk.org" <dev@dpdk.org>, Raslan Darawsheh <rasland@nvidia.com> Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=dmarchan@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset="UTF-8" Subject: Re: [dpdk-dev] [PATCH v3 0/3] AVX512 vPMD on i40e 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> On Thu, Jan 21, 2021 at 6:02 AM Kadam, Pallavi <pallavi.kadam@intel.com> wrote: > On 1/20/2021 11:21 PM, Ferruh Yigit wrote: > > And for the mingw, I have same result with Ali, I can reproduce with (Fedora MinGW 9.2.1-6.fc32). > > But different from the CI, I am getting the error [1] for all following files: > rte_random.c > i40e_rxtx_vec_sse.c > i40e_rxtx_vec_avx512.c > i40e_rxtx_vec_avx2.c > rte_ethdev.c > > [1] Error: invalid register for .seh_savexmm > > > There is a stackoverflow entry for it: > https://stackoverflow.com/questions/43152633/invalid-register-for-seh-savexmm-in-cygwin > > If I use '-fno-asynchronous-unwind-tables' as suggested there, the build works fine. > > So the problem may not be just 'i40e_rxtx_vec_avx512.c'. > > > If I change the machine type from 'native' to 'corei7' [2], the build error reduced to only 'i40e_rxtx_vec_avx512.c', so the problem seems happens when avx512 is supported by CPU, in this case compiler seems has a defect. > And since for 'i40e_rxtx_vec_avx512.c' the '-march=skylake-avx512' explicitly set can cause the problem seen in all machines. > > [2] > diff --git a/config/x86/cross-mingw b/config/x86/cross-mingw > index 4c15a7fa2e..7cee238add 100644 > --- a/config/x86/cross-mingw > +++ b/config/x86/cross-mingw > @@ -9,5 +9,5 @@ pkgconfig = 'x86_64-w64-mingw32-pkg-config' > [host_machine] > system = 'windows' > cpu_family = 'x86_64' > -cpu = 'native' > +cpu = 'corei7' > endian = 'little' > > @Ranjit, @Pallavi, > Are you building using mingw, and if so are you observing same problem? > Thanks Ferruh. > We usually build using Clang. However, we verify with mingw as well before submitting the patch. > As mentioned in the patch [1] comments, we replaced #include x86intrin.h with <rte_vect.h> in the file i40e_rxtx_vec_avx2.c > And this helped fixing an error related to conflicting types for '__m_prefethw' with Clang on Windows. > I was able to build this patch using Clang as well as mingw. > [1] http://patches.dpdk.org/patch/84770/ > > I verified patch fix submitted by Rong, Leyi, it builds successfully with Clang. > However, I am getting same error "Error: invalid register for .seh_savexmm" using mingw for 'i40e_rxtx_vec_avx512.c' file. The patch I sent https://patchwork.dpdk.org/patch/86999/ is not enough. I have neither time nor environment to find a fix. For now I simply stopped checking mingw builds. Will it get fixed? -- David Marchand