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Mon, 6 Jul 2020 17:24:58 +0800 Message-ID: <1594027500.30360.32.camel@mtkswgap22> Subject: Re: [PATCH v12 00/31] Speculative page faults From: Chinwen Chang To: Haiyan Song CC: Laurent Dufour , , , , , , , , Matthew Wilcox , , , , , "Thomas Gleixner" , Ingo Molnar , , Will Deacon , Sergey Senozhatsky , , "Andrea Arcangeli" , Alexei Starovoitov , , Daniel Jordan , David Rientjes , "Jerome Glisse" , Ganesh Mahendran , Minchan Kim , Punit Agrawal , vinayak menon , Yang Shi , zhong jiang , "Balbir Singh" , , Michel Lespinasse , Mike Rapoport , , , , , , Tim Chen , , , Date: Mon, 6 Jul 2020 17:25:00 +0800 In-Reply-To: <20190620081945.hwj6ruqddefnxg6z@haiyan.sh.intel.com> References: <20190416134522.17540-1-ldufour@linux.ibm.com> <20190606065129.d5s3534p23twksgp@haiyan.sh.intel.com> <3d3cefa2-0ebb-e86d-b060-7ba67c48a59f@linux.ibm.com> <1c412ebe-c213-ee67-d261-c70ddcd34b79@linux.ibm.com> <20190620081945.hwj6ruqddefnxg6z@haiyan.sh.intel.com> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.2.3-0ubuntu6 MIME-Version: 1.0 X-MTK: N Content-Transfer-Encoding: base64 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org T24gVGh1LCAyMDE5LTA2LTIwIGF0IDE2OjE5ICswODAwLCBIYWl5YW4gU29uZyB3cm90ZToNCj4g SGkgTGF1cmVudCwNCj4gDQo+IEkgZG93bmxvYWRlZCB5b3VyIHNjcmlwdCBhbmQgcnVuIGl0IG9u IEludGVsIDJzIHNreWxha2UgcGxhdGZvcm0gd2l0aCBzcGYtdjEyIHBhdGNoDQo+IHNlcmlhbHMu DQo+IA0KPiBIZXJlIGF0dGFjaGVkIHRoZSBvdXRwdXQgcmVzdWx0cyBvZiB0aGlzIHNjcmlwdC4N Cj4gDQo+IFRoZSBmb2xsb3dpbmcgY29tcGFyaXNvbiByZXN1bHQgaXMgc3RhdGlzdGljcyBmcm9t IHRoZSBzY3JpcHQgb3V0cHV0cy4NCj4gDQo+IGEpLiBFbmFibGUgVEhQDQo+ICAgICAgICAgICAg ICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgU1BGXzAgICAgICAgICAgY2hhbmdlICAg ICAgIFNQRl8xDQo+IHdpbGwtaXQtc2NhbGUucGFnZV9mYXVsdDIucGVyX3RocmVhZF9vcHMgICAg MjY2NDE5MC44ICAgICAgLTExLjclICAgICAgIDIzNTM2MzcuNiAgICAgIA0KPiB3aWxsLWl0LXNj YWxlLnBhZ2VfZmF1bHQzLnBlcl90aHJlYWRfb3BzICAgIDQ0ODAwMjcuMiAgICAgIC0xNC43JSAg ICAgICAzODE5MzMxLjkgICAgIA0KPiANCj4gDQo+IGIpLiBEaXNhYmxlIFRIUA0KPiAgICAgICAg ICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgIFNQRl8wICAgICAgICAgICBjaGFu Z2UgICAgICBTUEZfMQ0KPiB3aWxsLWl0LXNjYWxlLnBhZ2VfZmF1bHQyLnBlcl90aHJlYWRfb3Bz ICAgIDI2NTMyNjAuNyAgICAgICAtMTAlICAgICAgICAyMzg1MTY1LjgNCj4gd2lsbC1pdC1zY2Fs ZS5wYWdlX2ZhdWx0My5wZXJfdGhyZWFkX29wcyAgICA0NDM2MzMwLjEgICAgICAgLTEyLjQlICAg ICAgMzg4NjczNC4yIA0KPiANCj4gDQo+IFRoYW5rcywNCj4gSGFpeWFuIFNvbmcNCj4gDQo+IA0K PiBPbiBGcmksIEp1biAxNCwgMjAxOSBhdCAxMDo0NDo0N0FNICswMjAwLCBMYXVyZW50IER1Zm91 ciB3cm90ZToNCj4gPiBMZSAxNC8wNi8yMDE5IMOgIDEwOjM3LCBMYXVyZW50IER1Zm91ciBhIMOp Y3JpdCA6DQo+ID4gPiBQbGVhc2UgZmluZCBhdHRhY2hlZCB0aGUgc2NyaXB0IEkgcnVuIHRvIGdl dCB0aGVzZSBudW1iZXJzLg0KPiA+ID4gVGhpcyB3b3VsZCBiZSBuaWNlIGlmIHlvdSBjb3VsZCBn aXZlIGl0IGEgdHJ5IG9uIHlvdXIgdmljdGltIG5vZGUgYW5kIHNoYXJlIHRoZSByZXN1bHQuDQo+ ID4gDQo+ID4gU291bmRzIHRoYXQgdGhlIEludGVsIG1haWwgZml0ZXJpbmcgc3lzdGVtIGRvZXNu J3QgbGlrZSB0aGUgYXR0YWNoZWQgc2hlbGwgc2NyaXB0Lg0KPiA+IFBsZWFzZSBmaW5kIGl0IHRo ZXJlOiBodHRwczovL2dpc3QuZ2l0aHViLmNvbS9sZHU0L2E1Y2MxYTkzZjI5MzEwOGVhMzg3ZDQz ZDVkNWU3ZjQ0DQo+ID4gDQo+ID4gVGhhbmtzLA0KPiA+IExhdXJlbnQuDQo+ID4gDQoNCkhpIExh dXJlbnQsDQoNCldlIG1lcmdlZCBTUEYgdjExIGFuZCBzb21lIHBhdGNoZXMgZnJvbSB2MTIgaW50 byBvdXIgcGxhdGZvcm1zLiBBZnRlcg0Kc2V2ZXJhbCBleHBlcmltZW50cywgd2Ugb2JzZXJ2ZWQg U1BGIGhhcyBvYnZpb3VzIGltcHJvdmVtZW50cyBvbiB0aGUNCmxhdW5jaCB0aW1lIG9mIGFwcGxp Y2F0aW9ucywgZXNwZWNpYWxseSBmb3IgdGhvc2UgaGlnaC1UTFAgb25lcywNCg0KIyBsYXVuY2gg dGltZSBvZiBhcHBsaWNhdGlvbnMocyk6DQoNCnBhY2thZ2UgICAgICAgICAgIHZlcnNpb24gICAg ICB3LyBTUEYgICAgICB3L28gU1BGICAgICAgaW1wcm92ZSglKQ0KLS0tLS0tLS0tLS0tLS0tLS0t LS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tICAgICAgICAg ICAgICAgICAgICAgICAgICANCkJhaWR1IG1hcHMgICAgICAgIDEwLjEzLjMgICAgICAwLjg4NyAg ICAgICAwLjk4ICAgICAgICAgOS40OQ0KVGFvYmFvICAgICAgICAgICAgOC40LjAuMzUgICAgIDEu MjI3ICAgICAgIDEuMjkzICAgICAgICA1LjEwDQpNZWl0dWFuICAgICAgICAgICA5LjEyLjQwMSAg ICAgMS4xMDcgICAgICAgMS41NDMgICAgICAgIDI4LjI2DQpXZUNoYXQgICAgICAgICAgICA3LjAu MyAgICAgICAgMi4zNTMgICAgICAgMi42OCAgICAgICAgIDEyLjIwDQpIb25vciBvZiBLaW5ncyAg ICAxLjQzLjEuNiAgICAgNi42MyAgICAgICAgNi43MTMgICAgICAgIDEuMjQNCg0KDQpCeSB0aGUg d2F5LCB3ZSBoYXZlIHZlcmlmaWVkIG91ciBwbGF0Zm9ybXMgd2l0aCB0aG9zZSBwYXRjaGVzIGFu ZA0KYWNoaWV2ZWQgdGhlIGdvYWwgb2YgbWFzcyBwcm9kdWN0aW9uLg0KDQpUaGFua3MuDQpDaGlu d2VuIENoYW5nDQo=