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 X-Spam-Level: X-Spam-Status: No, score=-6.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id EA943C433FF for ; Fri, 2 Aug 2019 06:52:13 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C53C3206A3 for ; Fri, 2 Aug 2019 06:52:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2389145AbfHBGwM (ORCPT ); Fri, 2 Aug 2019 02:52:12 -0400 Received: from mga12.intel.com ([192.55.52.136]:39191 "EHLO mga12.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731644AbfHBGwM (ORCPT ); Fri, 2 Aug 2019 02:52:12 -0400 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga006.fm.intel.com ([10.253.24.20]) by fmsmga106.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 01 Aug 2019 23:52:11 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.64,337,1559545200"; d="scan'208";a="372871607" Received: from orsmsx106.amr.corp.intel.com ([10.22.225.133]) by fmsmga006.fm.intel.com with ESMTP; 01 Aug 2019 23:52:11 -0700 Received: from orsmsx114.amr.corp.intel.com ([169.254.8.96]) by ORSMSX106.amr.corp.intel.com ([169.254.1.52]) with mapi id 14.03.0439.000; Thu, 1 Aug 2019 23:52:11 -0700 From: "Prakhya, Sai Praneeth" To: Anshuman Khandual , "linux-kernel@vger.kernel.org" , "linux-mm@kvack.org" CC: "Hansen, Dave" , Ingo Molnar , Peter Zijlstra , Andrew Morton Subject: RE: [PATCH] fork: Improve error message for corrupted page tables Thread-Topic: [PATCH] fork: Improve error message for corrupted page tables Thread-Index: AQHVRyU2Tlnukuaks0aiZwfZ/9aV0qbmQJYAgAEtK5A= Date: Fri, 2 Aug 2019 06:52:10 +0000 Message-ID: References: <20190730221820.7738-1-sai.praneeth.prakhya@intel.com> <56ad91b8-1ea0-6736-5bc5-eea0ced01054@arm.com> In-Reply-To: <56ad91b8-1ea0-6736-5bc5-eea0ced01054@arm.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-titus-metadata-40: eyJDYXRlZ29yeUxhYmVscyI6IiIsIk1ldGFkYXRhIjp7Im5zIjoiaHR0cDpcL1wvd3d3LnRpdHVzLmNvbVwvbnNcL0ludGVsMyIsImlkIjoiNjE3Yzk5NjMtZDc4OC00ODc3LWI4OGEtOWEyMWE1MzM4ZmUxIiwicHJvcHMiOlt7Im4iOiJDVFBDbGFzc2lmaWNhdGlvbiIsInZhbHMiOlt7InZhbHVlIjoiQ1RQX05UIn1dfV19LCJTdWJqZWN0TGFiZWxzIjpbXSwiVE1DVmVyc2lvbiI6IjE3LjEwLjE4MDQuNDkiLCJUcnVzdGVkTGFiZWxIYXNoIjoiRXVaNFc2KzJWZ0h5dk11WXE1K3NzaVdldmNMeGd5RXlzenJXZXJOM2x3cE1Ncmg3SnJ0Y0VoN1wvWUpWek0wV0gifQ== x-ctpclassification: CTP_NT dlp-product: dlpe-windows dlp-version: 11.0.600.7 dlp-reaction: no-action x-originating-ip: [10.22.254.138] Content-Type: text/plain; charset="utf-8" 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 PiA+DQo+ID4gQ2M6IEluZ28gTW9sbmFyIDxtaW5nb0BrZXJuZWwub3JnPg0KPiA+IENjOiBQZXRl ciBaaWpsc3RyYSA8cGV0ZXJ6QGluZnJhZGVhZC5vcmc+DQo+ID4gQ2M6IEFuZHJldyBNb3J0b24g PGFrcG1AbGludXgtZm91bmRhdGlvbi5vcmc+DQo+ID4gU3VnZ2VzdGVkLWJ5L0Fja2VkLWJ5OiBE YXZlIEhhbnNlbiA8ZGF2ZS5oYW5zZW5AaW50ZWwuY29tPg0KPiANCj4gVGhvdWdoIEkgYW0gbm90 IHN1cmUsIHNob3VsZCB0aGUgYWJvdmUgYmUgdHdvIHNlcGFyYXRlIGxpbmVzIGluc3RlYWQgPw0K DQpTdXJlISBXaWxsIHNwbGl0IHRoZW0gaW4gVjIuDQoNCj4gDQo+ID4gU2lnbmVkLW9mZi1ieTog U2FpIFByYW5lZXRoIFByYWtoeWEgPHNhaS5wcmFuZWV0aC5wcmFraHlhQGludGVsLmNvbT4NCj4g PiAtLS0NCj4gPiAgaW5jbHVkZS9saW51eC9tbV90eXBlc190YXNrLmggfCA3ICsrKysrKysNCj4g PiAga2VybmVsL2ZvcmsuYyAgICAgICAgICAgICAgICAgfCA0ICsrLS0NCj4gPiAgMiBmaWxlcyBj aGFuZ2VkLCA5IGluc2VydGlvbnMoKyksIDIgZGVsZXRpb25zKC0pDQo+ID4NCj4gPiBkaWZmIC0t Z2l0IGEvaW5jbHVkZS9saW51eC9tbV90eXBlc190YXNrLmgNCj4gPiBiL2luY2x1ZGUvbGludXgv bW1fdHlwZXNfdGFzay5oIGluZGV4IGQ3MDE2ZGNiMjQ1ZS4uODgxZjRlYTNhMWI1DQo+ID4gMTAw NjQ0DQo+ID4gLS0tIGEvaW5jbHVkZS9saW51eC9tbV90eXBlc190YXNrLmgNCj4gPiArKysgYi9p bmNsdWRlL2xpbnV4L21tX3R5cGVzX3Rhc2suaA0KPiA+IEBAIC00NCw2ICs0NCwxMyBAQCBlbnVt IHsNCj4gPiAgCU5SX01NX0NPVU5URVJTDQo+ID4gIH07DQo+ID4NCj4gPiArc3RhdGljIGNvbnN0 IGNoYXIgKiBjb25zdCByZXNpZGVudF9wYWdlX3R5cGVzW05SX01NX0NPVU5URVJTXSA9IHsNCj4g PiArCSJNTV9GSUxFUEFHRVMiLA0KPiA+ICsJIk1NX0FOT05QQUdFUyIsDQo+ID4gKwkiTU1fU1dB UEVOVFMiLA0KPiA+ICsJIk1NX1NITUVNUEFHRVMiLA0KPiA+ICt9Ow0KPiANCj4gU2hvdWxkIGlu ZGV4IHRoZW0gdG8gbWF0Y2ggcmVzcGVjdGl2ZSB0eXBvIG1hY3Jvcy4NCj4gDQo+IAlbTU1fRklM RVBBR0VTXSA9ICJNTV9GSUxFUEFHRVMiLA0KPiAJW01NX0FOT05QQUdFU10gPSAiTU1fQU5PTlBB R0VTIiwNCj4gCVtNTV9TV0FQRU5UU10gPSAiTU1fU1dBUEVOVFMiLA0KPiAJW01NX1NITUVNUEFH RVNdID0gIk1NX1NITUVNUEFHRVMiLA0KDQpTdXJlISBXaWxsIGNoYW5nZSBpdC4NCg0KPiA+ICsN Cj4gPiAgI2lmIFVTRV9TUExJVF9QVEVfUFRMT0NLUyAmJiBkZWZpbmVkKENPTkZJR19NTVUpICAj ZGVmaW5lDQo+ID4gU1BMSVRfUlNTX0NPVU5USU5HDQo+ID4gIC8qIHBlci10aHJlYWQgY2FjaGVk IGluZm9ybWF0aW9uLCAqLw0KPiA+IGRpZmYgLS1naXQgYS9rZXJuZWwvZm9yay5jIGIva2VybmVs L2ZvcmsuYyBpbmRleA0KPiA+IDI4NTJkMGU3NmVhMy4uNmFlZjU4NDJkNGUwIDEwMDY0NA0KPiA+ IC0tLSBhL2tlcm5lbC9mb3JrLmMNCj4gPiArKysgYi9rZXJuZWwvZm9yay5jDQo+ID4gQEAgLTY0 OSw4ICs2NDksOCBAQCBzdGF0aWMgdm9pZCBjaGVja19tbShzdHJ1Y3QgbW1fc3RydWN0ICptbSkN Cj4gPiAgCQlsb25nIHggPSBhdG9taWNfbG9uZ19yZWFkKCZtbS0+cnNzX3N0YXQuY291bnRbaV0p Ow0KPiA+DQo+ID4gIAkJaWYgKHVubGlrZWx5KHgpKQ0KPiA+IC0JCQlwcmludGsoS0VSTl9BTEVS VCAiQlVHOiBCYWQgcnNzLWNvdW50ZXIgc3RhdGUgIg0KPiA+IC0JCQkJCSAgIm1tOiVwIGlkeDol ZCB2YWw6JWxkXG4iLCBtbSwgaSwgeCk7DQo+ID4gKwkJCXByX2FsZXJ0KCJCVUc6IEJhZCByc3Mt Y291bnRlciBzdGF0ZSBtbTolcCB0eXBlOiVzDQo+IHZhbDolbGRcbiIsDQo+ID4gKwkJCQkgbW0s IHJlc2lkZW50X3BhZ2VfdHlwZXNbaV0sIHgpOw0KPiBJdCBjaGFuZ2VzIHRoZSBwcmludCBmdW5j dGlvbiBhcyB3ZWxsLCB0aG91Z2ggdmVyeSBtaW5vciBjaGFuZ2UgYnV0IHBlcmhhcHMNCj4gbWVu dGlvbiB0aGF0IGluIHRoZSBjb21taXQgbWVzc2FnZSA/DQoNClN1cmUhIFdpbGwgbWVudGlvbiBp dCBpbiBWMi4NCkkgaGF2ZSBjaGFuZ2VkIHByaW50aygpIHRvIHByX2FsZXJ0KCkgYmVjYXVzZSB0 aGUgb3RoZXIgbWVzc2FnZSBpbiBjaGVja19tbSgpIHVzZXMgcHJfYWxlcnQoKS4NCg0KUmVnYXJk cywNClNhaQ0K