From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: <stable-bounces@dpdk.org> Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id D4D26A0C4C for <public@inbox.dpdk.org>; Sat, 17 Jul 2021 19:48:56 +0200 (CEST) Received: from [217.70.189.124] (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id CAB81410F5; Sat, 17 Jul 2021 19:48:56 +0200 (CEST) Received: from mail-pf1-f177.google.com (mail-pf1-f177.google.com [209.85.210.177]) by mails.dpdk.org (Postfix) with ESMTP id 49FEF4067B for <stable@dpdk.org>; Sat, 17 Jul 2021 19:48:54 +0200 (CEST) Received: by mail-pf1-f177.google.com with SMTP id 21so11986908pfp.3 for <stable@dpdk.org>; Sat, 17 Jul 2021 10:48:54 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=networkplumber-org.20150623.gappssmtp.com; s=20150623; h=date:from:to:cc:subject:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=3KqTCUc1zUp8ejP2SppypR3niSJnzdvepzUzWG3VGCw=; b=lVNd9kXM0SSAKIK7AT1/wWzJDihTHROLSajRWLIfFT+ACbzZ6W2OJGmQoLiO2r/XwL 4fn5ZJY96gnK6B6y0Dexyl3MHRe43ntdgx2SKFRnj/GRg46xuojrwOk7ETTMyTxek4eY zhkm3vusFnkoqpU0T4cbDjP6+iPdLoUSNvdyjEst0d5IxxKVjlTCTSsSUd8bGYm0u0A4 5h7deahgoII+ltxnJE4DWX0aL29ZsP2cKL79+2uJvACjbsfNDfcfkP5Yj9P1RGdJe/73 fGRz03I/P5NTp8LytGuoxh2mJ5xgl14Rout7zz2jGfUkDckwV9ZVg0ULOfQUvG5tFcLq CyWA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=3KqTCUc1zUp8ejP2SppypR3niSJnzdvepzUzWG3VGCw=; b=e3nNnMn2vRv0QbOTRl1OGVdGIoF0DiDf0rd0Z7L85HT3bhFMNfRw1I3ES9NT0tS0W+ X+EPqOfUeLDjeoTZhf2/rsb8wjhdiRd2FfP+s+rOY/RIxsOr8BYIjcFt6TgRgx9XNzjO aXS205a+dOFCAaxVKbu+2loMdqV0+SQpgX+TDA2Ht+tLA4+qNo9LV7RYO0mtKQrGj6pi ebueg48AfDgCrtUNPrWhTTNlY4MyM2uqYd34R+eLwZ1KBpciaZHowhqGYNUXy0nFD+0U XDuAl92ZvAso3+4vpFM2bkHeyA0mcW8EAIhD9vLrotSaaUMhQjqHXZRYrlUzR9Bizfmx 8k9A== X-Gm-Message-State: AOAM530Cby3FQelcv5XMX/lQ58ONb0tlLqY7Q96TeHTehGs/1c3/ckyW DtuV6uLJg/o8eshnuuYPu/vweQ== X-Google-Smtp-Source: ABdhPJzLo3Hmju2T/TBNVZ36Y3O/DJpRRhCvdEyusqU45PrK6kTvGjOM9QFm2bQq+eipqoKoTVHeWg== X-Received: by 2002:a62:8f4a:0:b029:327:6616:410f with SMTP id n71-20020a628f4a0000b02903276616410fmr16418909pfd.68.1626544133387; Sat, 17 Jul 2021 10:48:53 -0700 (PDT) Received: from hermes.local (204-195-33-123.wavecable.com. [204.195.33.123]) by smtp.gmail.com with ESMTPSA id 72sm16087142pgd.10.2021.07.17.10.48.52 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 17 Jul 2021 10:48:52 -0700 (PDT) Date: Sat, 17 Jul 2021 10:48:49 -0700 From: Stephen Hemminger <stephen@networkplumber.org> To: Liang Ma <liangma@liangbit.com> Cc: dev@dpdk.org, yi.rong@intel.com, Liang Ma <liangma@bytedance.com>, stable@dpdk.org, Bruce Richardson <bruce.richardson@intel.com>, Konstantin Ananyev <konstantin.ananyev@intel.com> Message-ID: <20210717104849.2ec6526e@hermes.local> In-Reply-To: <20210717170830.1736-1-liangma@liangbit.com> References: <20210717170830.1736-1-liangma@liangbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Subject: Re: [dpdk-stable] [dpdk-dev] [PATCH] buildtools: Check GCC version to avoid GCC 6.3.0 avx512 bug X-BeenThere: stable@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: patches for DPDK stable branches <stable.dpdk.org> List-Unsubscribe: <https://mails.dpdk.org/options/stable>, <mailto:stable-request@dpdk.org?subject=unsubscribe> List-Archive: <http://mails.dpdk.org/archives/stable/> List-Post: <mailto:stable@dpdk.org> List-Help: <mailto:stable-request@dpdk.org?subject=help> List-Subscribe: <https://mails.dpdk.org/listinfo/stable>, <mailto:stable-request@dpdk.org?subject=subscribe> Errors-To: stable-bounces@dpdk.org Sender: "stable" <stable-bounces@dpdk.org> On Sat, 17 Jul 2021 18:08:30 +0100 Liang Ma <liangma@liangbit.com> wrote: > From: Liang Ma <liangma@bytedance.com> > > GCC 6.3.0 has a known bug which related to _mm512_extracti64x4_epi64. > Please reference https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82887 > > Some DPDK PMD avx512 version heavily use _mm512_extracti64x4_epi6, > which casue building failure with debug buildtype. > > Therefore, it's helpful to disable avx512 for GCC 6.3.0 > > Bugzilla ID: 717 > Fixes: e6a6a138919f (net/i40e: add AVX512 vector path) > Fixes: 808a17b3c1e6 (net/ice: add Rx AVX512 offload path) > Fixes: 4b64ccb328c9 (net/iavf: fix VLAN extraction in AVX512 path) > Cc: stable@dpdk.org > > Reported-by: Liang Ma <liangma@liangbit.com> > Signed-off-by: Liang Ma <liangma@bytedance.com> What distro still has GCC 6.3.0?