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mx.microsoft.com 1; spf=pass smtp.mailfrom=intel.com; dmarc=pass action=none header.from=intel.com; dkim=pass header.d=intel.com; arc=none Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=intel.com; Received: from BYAPR11MB3799.namprd11.prod.outlook.com (2603:10b6:a03:fb::19) by PH0PR11MB4807.namprd11.prod.outlook.com (2603:10b6:510:3a::6) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.5102.16; Tue, 22 Mar 2022 16:11:42 +0000 Received: from BYAPR11MB3799.namprd11.prod.outlook.com ([fe80::1c27:e11:f54b:94e6]) by BYAPR11MB3799.namprd11.prod.outlook.com ([fe80::1c27:e11:f54b:94e6%6]) with mapi id 15.20.5081.023; Tue, 22 Mar 2022 16:11:42 +0000 Message-ID: <d60817bc-167a-2c15-23e3-914dcc304305@intel.com> Date: Tue, 22 Mar 2022 16:11:36 +0000 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:91.0) Gecko/20100101 Firefox/91.0 Thunderbird/91.6.1 Subject: Re: [PATCH] lib/power: power pmd errata with RTM and gcc-9 To: Thomas Monjalon <thomas@monjalon.net> CC: <dev@dpdk.org> References: <20220309132221.18210-1-david.hunt@intel.com> <4149792.kQq0lBPeGt@thomas> From: David Hunt <david.hunt@intel.com> In-Reply-To: <4149792.kQq0lBPeGt@thomas> Content-Type: text/plain; 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This issue occurs when compiling DPDK applications >> with gcc-9 on platforms with TSX enabled. In rte_power_monitor_multi(), >> the function may return without successfully starting the RTM >> transaction (the _xbegin() fails). >> >> Signed-off-by: David Hunt <david.hunt@intel.com> > Applied, thanks. > > Is there a way to fix it or should we keep this errata forever? If it's a gcc-9 issue, then we'll have to get the assistance to fix. I've send the relevant information on to the gcc folks for analysis, and I'll follow up at regular intervals. I would hope to be able to remove the errata within the next one or two releases.