From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 99DD3C83F22 for ; Mon, 28 Aug 2023 17:07:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232885AbjH1RGr (ORCPT ); Mon, 28 Aug 2023 13:06:47 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37518 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232762AbjH1RGO (ORCPT ); Mon, 28 Aug 2023 13:06:14 -0400 Received: from eu-smtp-delivery-151.mimecast.com (eu-smtp-delivery-151.mimecast.com [185.58.85.151]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 80726B4 for ; Mon, 28 Aug 2023 10:06:10 -0700 (PDT) Received: from AcuMS.aculab.com (156.67.243.121 [156.67.243.121]) by relay.mimecast.com with ESMTP with both STARTTLS and AUTH (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) id uk-mta-256-pYhJ4W3RNxO8_bT6JmDMwg-1; Mon, 28 Aug 2023 18:06:07 +0100 X-MC-Unique: pYhJ4W3RNxO8_bT6JmDMwg-1 Received: from AcuMS.Aculab.com (10.202.163.4) by AcuMS.aculab.com (10.202.163.4) with Microsoft SMTP Server (TLS) id 15.0.1497.48; Mon, 28 Aug 2023 18:06:11 +0100 Received: from AcuMS.Aculab.com ([::1]) by AcuMS.aculab.com ([::1]) with mapi id 15.00.1497.048; Mon, 28 Aug 2023 18:06:11 +0100 From: David Laight To: 'Joshua Hudson' , linux-kernel Subject: RE: System Call trashing registers Thread-Topic: System Call trashing registers Thread-Index: AQHZ1qZJOhxdvboJAEStlBKVyiUHUq//9J2w Date: Mon, 28 Aug 2023 17:06:10 +0000 Message-ID: References: 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 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 RnJvbTogSm9zaHVhIEh1ZHNvbg0KPiBTZW50OiAyNCBBdWd1c3QgMjAyMyAxNzoxNQ0KPiANCj4g MSkgQSBsb3Qgb2YgbXkgb2xkIDMyLWJpdCBwcm9ncmFtcyBkb24ndCB3b3JrIG9uIHg2NCBsaW51 eCBhbnltb3JlDQo+IGJlY2F1c2UgaW50IDgwaCBub3cgdHJhc2hlcyBlY3ggYW5kIGVkeC4gVGhp cyBoYXNuJ3QgYmVlbiBhIHNlcmlvdXMNCj4gcHJvYmxlbSBmb3IgbWUuDQoNCkFyZW4ndCBib3Ro IGVjeCBhbmQgZWR4IGNhbGxlciBzYXZlZD8NClNvIGlmIHRoZSBjb2RlIGlzIHVzaW5nIGFzbSBz eXNjYWxsIHdyYXBwZXJzIHByb3ZpZGVkIHRoZSBhc20NCndyYXBwZXJzIGRvbid0IGV4cGVjdCB0 aGUgcmVnaXN0ZXJzIGJlIHNhdmVkICh3aGljaCBpcyB1bmxpa2VseSkNCnRoZW4gaXQgaXMgc2Fm ZSBmb3IgdGhlIGtlcm5lbCB0byB0cmFzaCB0aGVtLg0KDQpPVE9IIEkgaGF2ZSBzZWVuIGNvZGUg Y29tcGlsZWQgd2l0aCBpbmxpbmVkIHN5c2NhbGwgY29kZQ0KKGJ1dCBub3QgcmVjZW50bHkpLiBJ biB0aGF0IGNhc2UgaXQgd2lsbCBtYXR0ZXIuDQoNCkl0IGdldHMgbW9yZSBpbnRlcmVzdGluZyB3 aXRoIGFsbCB0aGUgeG1tL3ltbS96bW0gcmVnaXN0ZXJzLg0KVGhleSBhcmUgYWxzbyBhbGwgY2Fs bGVyIHNhdmVkLCBzbyBpZiB0aGUgY29tcGlsZXIgYWx3YXlzDQpzZWVzIGEgcmVhbCBmdW5jdGlv biBjYWxsIHdyYXBwaW5nIGEgc3lzdGVtIGNhbGwgdGhlbiB0aGUga2VybmVsDQpuZWVkIG5vdCBz YXZlIHRoZW0gYW5kIGNhbiByZXR1cm4gd2l0aCB0aGVtIGFsbCBzZXQgdG8gemVyby4NCg0KSSBk b24ndCBiZWxpZXZlIHRoYXQgaXMgZG9uZSwgYnV0IGl0IGlzIGxpa2VseSB0byBiZSBhIG1lYXN1 cmFibGUNCnBlcmZvcm1hbmNlIGdhaW4gZm9yIG1vc3QgcHJvZ3JhbXMuDQoNCglEYXZpZA0KDQot DQpSZWdpc3RlcmVkIEFkZHJlc3MgTGFrZXNpZGUsIEJyYW1sZXkgUm9hZCwgTW91bnQgRmFybSwg TWlsdG9uIEtleW5lcywgTUsxIDFQVCwgVUsNClJlZ2lzdHJhdGlvbiBObzogMTM5NzM4NiAoV2Fs ZXMpDQo=