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[23.128.96.18]) by mx.google.com with ESMTP id vr6si1902117ejb.739.2021.05.06.03.11.04; Thu, 06 May 2021 03:11:29 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=aculab.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232512AbhEFJsu (ORCPT + 99 others); Thu, 6 May 2021 05:48:50 -0400 Received: from eu-smtp-delivery-151.mimecast.com ([185.58.86.151]:21464 "EHLO eu-smtp-delivery-151.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231194AbhEFJst (ORCPT ); Thu, 6 May 2021 05:48:49 -0400 Received: from AcuMS.aculab.com (156.67.243.121 [156.67.243.121]) (Using TLS) by relay.mimecast.com with ESMTP id uk-mta-103--n84RQGoNf2JT8Q9EHmfAQ-1; Thu, 06 May 2021 10:47:48 +0100 X-MC-Unique: -n84RQGoNf2JT8Q9EHmfAQ-1 Received: from AcuMS.Aculab.com (fd9f:af1c:a25b:0:994c:f5c2:35d6:9b65) by AcuMS.aculab.com (fd9f:af1c:a25b:0:994c:f5c2:35d6:9b65) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Thu, 6 May 2021 10:47:47 +0100 Received: from AcuMS.Aculab.com ([fe80::994c:f5c2:35d6:9b65]) by AcuMS.aculab.com ([fe80::994c:f5c2:35d6:9b65%12]) with mapi id 15.00.1497.015; Thu, 6 May 2021 10:47:47 +0100 From: David Laight To: 'Andy Lutomirski' , Simon Marchi CC: Stefan Metzmacher , Borislav Petkov , "Peter Zijlstra" , Linus Torvalds , Thomas Gleixner , "Jens Axboe" , Linux Kernel Mailing List , io-uring , "the arch/x86 maintainers" , "linux-toolchains@vger.kernel.org" Subject: RE: [PATCH] io_thread/x86: don't reset 'cs', 'ss', 'ds' and 'es' registers for io_threads Thread-Topic: [PATCH] io_thread/x86: don't reset 'cs', 'ss', 'ds' and 'es' registers for io_threads Thread-Index: AQHXQfuSElK5zn4+eUeudkt5GoEV9qrWNZZw Date: Thu, 6 May 2021 09:47:46 +0000 Message-ID: References: <8735v3ex3h.ffs@nanos.tec.linutronix.de> <3C41339D-29A2-4AB1-958F-19DB0A92D8D7@amacapital.net> <044d0bad-6888-a211-e1d3-159a4aeed52d@polymtl.ca> <932d65e1-5a8f-c86a-8673-34f0e006c27f@samba.org> <30e248aa-534d-37ff-2954-a70a454391fc@polymtl.ca> In-Reply-To: Accept-Language: en-GB, en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.202.205.107] MIME-Version: 1.0 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=C51A453 smtp.mailfrom=david.laight@aculab.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: aculab.com Content-Language: en-US Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: base64 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org PiAoVG8gYXZvaWQgY29uZnVzaW9uLCB0aGlzIGlzIG5vdCBhIHVuaXZlcnNhbCBwcm9wZXJ0eSBv ZiBMaW51eC4gIGFybTY0DQo+IGFuZCBhcm0zMiB0YXNrcyBvbiBhbiBhcm02NCBMaW51eCBob3N0 IGFyZSBkaWZmZXJlbnQgYW5kIGNhbm5vdA0KPiBhcmJpdHJhcmlseSBzd2l0Y2ggbW9kZXMuKQ0K DQpBbHRob3VnaCB0aGVyZSBhcmUgcGF0Y2hlcyBsdXJraW5nIHRvIGNoYW5nZSB0aGF0Lg0KKG5v dCBmcm9tIG1lKS4NCg0KCURhdmlkDQoNCi0NClJlZ2lzdGVyZWQgQWRkcmVzcyBMYWtlc2lkZSwg QnJhbWxleSBSb2FkLCBNb3VudCBGYXJtLCBNaWx0b24gS2V5bmVzLCBNSzEgMVBULCBVSw0KUmVn aXN0cmF0aW9uIE5vOiAxMzk3Mzg2IChXYWxlcykNCg==