From mboxrd@z Thu Jan 1 00:00:00 1970 From: Thomas Monjalon Subject: Re: [PATCH v3] build: disable gcc AVX512F support Date: Sun, 04 Nov 2018 21:56:47 +0100 Message-ID: <2863514.e87XU0Xy4P@xps> References: <20181023212318.43082-1-yskoh@mellanox.com> <20181103010623.42468-1-yskoh@mellanox.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7Bit Cc: dev@dpdk.org, "bruce.richardson@intel.com" , "ferruh.yigit@intel.com" , Shahaf Shuler , "konstantin.ananyev@intel.com" , "anatoly.burakov@intel.com" , "stable@dpdk.org" To: Yongseok Koh Return-path: In-Reply-To: <20181103010623.42468-1-yskoh@mellanox.com> List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" 03/11/2018 02:06, Yongseok Koh: > This is a workaround to prevent a crash, which might be caused by > optimization of newer gcc (7.3.0) on Intel Skylake. > > This disables AVX512F support of gcc by adding -mno-avx512f if it is > disabled in DPDK (CONFIG_RTE_ENABLE_AVX512=n). > > This does not apply to the meson build as that doesn't have such an option > but always enable AVX512F whenever supported. > > Bugzilla ID: 97 > > Cc: stable@dpdk.org > > Signed-off-by: Yongseok Koh Applied, thanks