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Fri, 25 Sep 2020 15:18:43 +0800 Message-ID: <1601018323.28162.4.camel@mtksdccf07> Subject: Re: [PATCH v4 1/6] timer: kasan: record timer stack From: Walter Wu To: Thomas Gleixner CC: Andrew Morton , John Stultz , Stephen Boyd , Marco Elver , Andrey Ryabinin , "Alexander Potapenko" , Dmitry Vyukov , "Andrey Konovalov" , Matthias Brugger , , , , , wsd_upstream , Date: Fri, 25 Sep 2020 15:18:43 +0800 In-Reply-To: <87h7rm97js.fsf@nanos.tec.linutronix.de> References: <20200924040335.30934-1-walter-zh.wu@mediatek.com> <87h7rm97js.fsf@nanos.tec.linutronix.de> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.2.3-0ubuntu6 MIME-Version: 1.0 X-TM-SNTS-SMTP: 3C3089F7FF02F5E21612A0E8793CCC1F5A4AAE300078785DD5266310F77958DD2000:8 X-MTK: N Content-Transfer-Encoding: base64 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org T24gVGh1LCAyMDIwLTA5LTI0IGF0IDIzOjQxICswMjAwLCBUaG9tYXMgR2xlaXhuZXIgd3JvdGU6 DQo+IE9uIFRodSwgU2VwIDI0IDIwMjAgYXQgMTI6MDMsIFdhbHRlciBXdSB3cm90ZToNCj4gPiBX aGVuIGFuYWx5emUgdXNlLWFmdGVyLWZyZWUgb3IgZG91YmxlLWZyZWUgaXNzdWUsIHJlY29yZGlu ZyB0aGUgdGltZXINCj4gPiBzdGFja3MgaXMgaGVscGZ1bCB0byBwcmVzZXJ2ZSB1c2FnZSBoaXN0 b3J5IHdoaWNoIHBvdGVudGlhbGx5IGdpdmVzDQo+ID4gYSBoaW50IGFib3V0IHRoZSBhZmZlY3Rl ZCBjb2RlLg0KPiA+DQo+ID4gUmVjb3JkIHRoZSBtb3N0IHJlY2VudCB0d28gdGltZXIgaW5pdCBj YWxscyBpbiBLQVNBTiB3aGljaCBhcmUgcHJpbnRlZA0KPiA+IG9uIGZhaWx1cmUgaW4gdGhlIEtB U0FOIHJlcG9ydC4NCj4gPg0KPiA+IEZvciB0aW1lcnMgaXQgaGFzIHR1cm5lZCBvdXQgdG8gYmUg dXNlZnVsIHRvIHJlY29yZCB0aGUgc3RhY2sgdHJhY2UNCj4gPiBvZiB0aGUgdGltZXIgaW5pdCBj YWxsLg0KPiANCj4gSW4gd2hpY2ggd2F5PyBBbmQgd2hhdCBraW5kIG9mIGJ1ZyBkb2VzIGl0IGNh dGNoIHdoaWNoIGNhbm5vdCBiZSBjYXRjaGVkDQo+IGJ5IGV4aXN0aW5nIGRlYnVnIG1lY2hhbmlz bXMgYWxyZWFkeT8NCj4gDQoNCldlIG9ubHkgcHJvdmlkZSBhbm90aGVyIGRlYnVnIG1lY2hhbmlz bXMgdG8gZGVidWcgdXNlLWFmdGVyLWZyZWUgb3INCmRvdWJsZS1mcmVlLCBpdCBjYW4gYmUgZGlz cGxheWVkIHRvZ2V0aGVyIGluIEtBU0FOIHJlcG9ydCBhbmQgaGF2ZSBhDQpjaGFuY2UgdG8gZGVi dWcsIGFuZCBpdCBkb2Vzbid0IG5lZWQgdG8gZW5hYmxlIGV4aXN0aW5nIGRlYnVnIG1lY2hhbmlz bXMNCmF0IHRoZSBzYW1lIHRpbWUuIHRoZW4gaXQgaGFzIGEgY2hhbmNlIHRvIHJlc29sdmUgaXNz dWUuDQoNCj4gPiBCZWNhdXNlIGlmIHRoZSBVQUYgcm9vdCBjYXVzZSBpcyBpbiB0aW1lciBpbml0 LCB0aGVuIHVzZXIgY2FuIHNlZQ0KPiA+IEtBU0FOIHJlcG9ydCB0byBnZXQgd2hlcmUgaXQgaXMg cmVnaXN0ZXJlZCBhbmQgZmluZCBvdXQgdGhlIHJvb3QNCj4gPiBjYXVzZS4NCj4gDQo+IFdoYXQ/ IElmIHRoZSBVQUYgcm9vdCBjYXVzZSBpcyBpbiB0aW1lciBpbml0LCB0aGVuIHJlZ2lzdGVyaW5n IGl0IGFmdGVyDQo+IHVzaW5nIGl0IGluIHRoYXQgdmVyeSBzYW1lIGZ1bmN0aW9uIGlzIHByZXR0 eSBwb2ludGxlc3MuDQo+IA0KDQpTZWUgWzFdLCB0aGUgY2FsbCBzdGFjayBzaG93cyBVQUYgaGFw cGVuIGF0IGR1bW15X3RpbWVyKCksIGl0IGlzIHRoZQ0KY2FsbGJhY2sgZnVuY3Rpb24gYW5kIHNl dCBieSB0aW1lcl9zZXR1cCgpLCBpZiBLQVNBTiByZXBvcnQgc2hvd3MgdGhlDQp0aW1lciBjYWxs IHN0YWNrLCBpdCBzaG91bGQgYmUgdXNlZnVsIGZvciBwcm9ncmFtbWVyLg0KDQpbMV0NCmh0dHBz Oi8vc3l6a2FsbGVyLmFwcHNwb3QuY29tL2J1Zz9pZD0zNGU2OWI3YzhjMDE2NTY1OGNiYzk4N2Rh MGI2MWRhZGVjNjQ0YjZiDQoNCg0KPiA+IEl0IGRvbid0IG5lZWQgdG8gZW5hYmxlIERFQlVHX09C SkVDVFNfVElNRVJTLCBidXQgdGhleSBoYXZlIGEgY2hhbmNlDQo+ID4gdG8gZmluZCBvdXQgdGhl IHJvb3QgY2F1c2UuDQo+IA0KPiBUaGVyZSBpcyBhIGxvdCBvZiBoYW5kd2F2aW5nIGhvdyB1c2Vm dWwgdGhpcyBpcywgYnV0IFRCSCBJIGRvbid0IHNlZSB0aGUNCj4gdmFsdWUgYXQgYWxsLg0KPiAN Cj4gREVCVUdfT0JKRUNUU19USU1FUlMgZG9lcyBhIGxvdCBtb3JlIHRoYW4gY3Jhc2hpbmcgb24g VUFGLiBJZiBLQVNBTg0KPiBwcm92aWRlcyBhZGRpdGlvbmFsIHZhbHVlIG92ZXIgREVCVUdfT0JK RUNUU19USU1FUlMgdGhlbiBzcGVsbCBpdCBvdXQsDQo+IGJ1dCBqdXN0IHNheWluZyB0aGF0IHlv dSBkb24ndCBuZWVkIHRvIGVuYWJsZSBERUJVR19PQkpFQ1RTX1RJTUVSUyBpcw0KPiBub3QgbWFr aW5nIGFuIGFyZ3VtZW50IGZvciB0aGF0IGNoYW5nZS4NCj4gDQoNCldlIGRvbid0IHdhbnQgdG8g cmVwbGFjZSBERUJVR19PQkpFQ1RTX1RJTUVSUyB3aXRoIHRoaXMgcGF0Y2hlcywgb25seQ0KaG9w ZSB0byB1c2UgbG93IG92ZXJoZWFkKGNvbXBhcmUgd2l0aCBERUJVR19PQkpFQ1RTX1RJTUVSUykg dG8gZGVidWcNCnVzZS1hZnRlci1mcmVlL2RvdWJsZS1mcmVlIGlzc3VlLiBJZiB5b3UgaGF2ZSBz b21lIGNvbmNlcm5zLCB3ZSBjYW4gYWRkDQp0aG9zZSBtZXNzYWdlIGludG8gY29tbWl0IGxvZy4N Cg0KVGhhbmtzLg0KDQpXYWx0ZXINCg==