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[209.132.180.67]) by mx.google.com with ESMTP id x186si1683653oig.209.2020.01.25.15.13.48; Sat, 25 Jan 2020 15:13:59 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=intel.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728173AbgAYXKB (ORCPT + 99 others); Sat, 25 Jan 2020 18:10:01 -0500 Received: from mga01.intel.com ([192.55.52.88]:23337 "EHLO mga01.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727163AbgAYXKB (ORCPT ); Sat, 25 Jan 2020 18:10:01 -0500 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga002.jf.intel.com ([10.7.209.21]) by fmsmga101.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 25 Jan 2020 15:10:01 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.70,363,1574150400"; d="scan'208";a="246059569" Received: from orsmsx107.amr.corp.intel.com ([10.22.240.5]) by orsmga002.jf.intel.com with ESMTP; 25 Jan 2020 15:10:00 -0800 Received: from orsmsx114.amr.corp.intel.com ([169.254.8.4]) by ORSMSX107.amr.corp.intel.com ([169.254.1.15]) with mapi id 14.03.0439.000; Sat, 25 Jan 2020 15:10:00 -0800 From: "Luck, Tony" To: Mark D Rustad CC: Thomas Gleixner , Arvind Sankar , "Christopherson, Sean J" , Peter Zijlstra , Ingo Molnar , "Yu, Fenghua" , "Ingo Molnar" , Borislav Petkov , H Peter Anvin , "Raj, Ashok" , "Shankar, Ravi V" , linux-kernel , x86 Subject: Re: [PATCH v16] x86/split_lock: Enable split lock detection by kernel Thread-Topic: [PATCH v16] x86/split_lock: Enable split lock detection by kernel Thread-Index: AQHV08vIoo9+H20Xn0+pX8CBaZEvcaf8gEOAgAAHYoA= Date: Sat, 25 Jan 2020 23:10:00 +0000 Message-ID: References: <4E95BFAA-A115-4159-AA4F-6AAB548C6E6C@gmail.com> In-Reply-To: <4E95BFAA-A115-4159-AA4F-6AAB548C6E6C@gmail.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: Content-Type: text/plain; charset="utf-8" Content-ID: <44124E5DD95A474BBBAE06EC979C7132@intel.com> Content-Transfer-Encoding: base64 MIME-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org DQo+IA0KPiBNYXliZSAiaXNuJ3Qgc3VwcG9ydGVkIiBpcyBub3QgcmVhbGx5IHRoZSByaWdodCB3 b3JkaW5nLiBJIHdvdWxkIHRoaW5rIHRoYXQgaWYgaXQgdHJ1bHkgd2VyZW4ndCBzdXBwb3J0ZWQg dGhhdCB5b3UgcmVhbGx5IHNob3VsZG4ndCBiZSBjaGFuZ2luZyB0aGUgbW9kZSBhdCBhbGwgYXQg cnVudGltZS4gRG8geW91IHJlYWxseSBqdXN0IG1lYW4gImlzbid0IGF0b21pYyI/IE9yIGlzIHRo ZXJlIHNvbWV0aGluZyBkZWVwZXIgYWJvdXQgaXQ/IElmIHNvLCBhcmUgdGhlcmUgb3RoZXIgcG9z c2libGUgcmlza3MgYXNzb2NpYXRlZCB3aXRoIGNoYW5naW5nIHRoZSBtb2RlIGF0IHJ1bnRpbWU/ DQo+IA0KPiBTb3JyeSwgdGhlIHdvcmRpbmcganVzdCBoYXBwZW5lZCB0byBjYXRjaCBteSBleWUg DQoNClRoZSDigJxtb2Rlc+KAnSBoZXJlIG1lYW5zIHRoZSB0aHJlZSBvcHRpb24gc2VsZWN0YWJs ZSBieSBjb21tYW5kIGxpbmUgb3B0aW9uLiBPZmYvd2Fybi9mYXRhbC4gU29tZSBlYXJsaWVyIHZl cnNpb25zIG9mIHRoaXMgcGF0Y2ggaGFkIGEgc3lzZnMgaW50ZXJmYWNlIHRvIHN3aXRjaCB0aGlu Z3MgYXJvdW5kLg0KDQpOb3Qgd2hldGhlciB3ZSBoYXZlIHRoZSBNU1IgZW5hYmxlZC9kaXNhYmxl ZC4NCg0KSWYgVGhvbWFzIG9yIEJvcmlzIGZpbmRzIG1vcmUgdGhpbmdzIHRvIGZpeCB0aGVuIEni gJlsbCB0YWtlIGEgbG9vayBhdCBjbGFyaWZ5aW5nIHRoaXMgY29tbWVudCB0b28uDQoNCi1Ub255