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Wed, 15 Jun 2022 13:39:14 -0700 (PDT) Date: Wed, 15 Jun 2022 13:39:12 -0700 In-Reply-To: Message-Id: Mime-Version: 1.0 References: Subject: Re: Curious bpf regression in 5.18 already fixed in stable 5.18.3 From: sdf@google.com To: "Maciej =?utf-8?Q?=C5=BBenczykowski?=" Cc: Alexei Starovoitov , Linux NetDev , BPF Mailing List , Alexei Starovoitov , Martin KaFai Lau , Sasha Levin , Carlos Llamas , zhuyifei@google.com Content-Type: text/plain; charset="UTF-8"; format=flowed; delsp=yes Content-Transfer-Encoding: base64 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org T24gMDYvMTUsIFN0YW5pc2xhdiBGb21pY2hldiB3cm90ZToNCj4gT24gMDYvMTUsIFN0YW5pc2xh diBGb21pY2hldiB3cm90ZToNCj4gPiBPbiAwNi8xNSwgc2RmQGdvb2dsZS5jb20gd3JvdGU6DQo+ ID4gPiBPbiAwNi8xNSwgTWFjaWVqIMW7ZW5jenlrb3dza2kgd3JvdGU6DQo+ID4gPiA+IE9uIFdl ZCwgSnVuIDE1LCAyMDIyIGF0IDEwOjM4IEFNIEFsZXhlaSBTdGFyb3ZvaXRvdg0KPiA+ID4gPiA8 YWxleGVpLnN0YXJvdm9pdG92QGdtYWlsLmNvbT4gd3JvdGU6DQo+ID4gPiA+ID4NCj4gPiA+ID4g PiBPbiBXZWQsIEp1biAxNSwgMjAyMiBhdCA5OjU3IEFNIE1hY2llaiDFu2VuY3p5a293c2tpICAN Cj4gPG1hemVAZ29vZ2xlLmNvbT4NCj4gPiA+ID4gd3JvdGU6DQo+ID4gPiA+ID4gPiA+DQo+ID4g PiA+ID4gPiA+IEkndmUgY29uZmlybWVkIHZhbmlsbGEgNS4xOC4wIGlzIGJyb2tlbiwgYW5kIGFs bCBpdCB0YWtlcyBpcw0KPiA+ID4gPiA+ID4gPiBjaGVycnlwaWNraW5nIHRoYXQgc3BlY2lmaWMg c3RhYmxlIDUuMTgueCBwYXRjaCBbDQo+ID4gPiA+ID4gPiA+IDcxMGE4OTg5YjRiNDA2NzkwM2Y1 YjYxMzE0ZWRhNDkxNjY3YjZhYjMgXSB0byBmaXggYmVoYXZpb3VyLg0KPiA+ID4gPiA+IC4uLg0K PiA+ID4gPiA+ID4gYjhiZDNlZTE5NzFkMWVkYmM1M2NmMzIyYzE0OWNhMDIyNzQ3MmU1NiB0aGlz IGlzIHdoZXJlIHdlIGFkZGVkDQo+ID4gPiA+IEVGQVVMVCBpbiA1LjE2DQo+ID4gPiA+ID4NCj4g PiA+ID4gPiBUaGVyZSBhcmUgbm8gc3VjaCBzaGEtcyBpbiB0aGUgdXBzdHJlYW0ga2VybmVsLg0K PiA+ID4gPiA+IFNvcnJ5IHdlIGNhbm5vdCBoZWxwIHdpdGggZGVidWdnaW5nIG9mIGFuZHJvaWQg a2VybmVscy4NCj4gPiA+DQo+ID4gPiA+IFllcywgc2RmQCBxdW90ZWQgdGhlIHdyb25nIHNoYTEs IGl0J3MgYSBjbGVhbiBjaGVycnlwaWNrIHRvIGFuDQo+ID4gPiA+IGludGVybmFsIGJyYW5jaCBv Zg0KPiA+ID4gPiAnYnBmOiBBZGQgY2dyb3VwIGhlbHBlcnMgYnBmX3tnZXQsc2V0fV9yZXR2YWwg dG8gZ2V0L3NldCBzeXNjYWxsICANCj4gcmV0dXJuDQo+ID4gPiA+IHZhbHVlJw0KPiA+ID4gPiBj b21taXQgYjQ0MTIzYjRhM2RjYWQ0NjY0ZDNhMGY3MmMwMTFmZmQ0YzljNGQ5My4NCj4gPiA+DQo+ ID4gPiA+ICANCj4gaHR0cHM6Ly9naXQua2VybmVsLm9yZy9wdWIvc2NtL2xpbnV4L2tlcm5lbC9n aXQvc3RhYmxlL2xpbnV4LmdpdC9jb21taXQvP2g9bGludXgtNS4xNi55JmlkPWI0NDEyM2I0YTNk Y2FkNDY2NGQzYTBmNzJjMDExZmZkNGM5YzRkOTMNCj4gPiA+DQo+ID4gPiA+IEFueXdheSwgSSB0 aGluayBpdCdzIHVucmVsYXRlZCAtIG9yIGF0IGxlYXN0IG5vdCB0aGUgaW1tZWRpYXRlIHJvb3Qg IA0KPiBjYXVzZS4NCj4gPiA+DQo+ID4gPiA+IEFsc28gdGhlcmUncyAqbm8qIEFuZHJvaWQga2Vy bmVscyBpbnZvbHZlZCBoZXJlLg0KPiA+ID4gPiBUaGlzIGlzIHRoZSBhbmRyb2lkIG5ldCB0ZXN0 cyBmYWlsaW5nIG9uIHZhbmlsbGEgNS4xOCBhbmQgcGFzc2luZyBvbg0KPiA+ID4gPiA1LjE4LjMu DQo+ID4gPg0KPiA+ID4gWWVhaCwgc29ycnksIGRpZG4ndCBtZWFuIHRvIHNlbmQgdGhvc2Ugb3V0 c2lkZSA6LSkNCj4gPiA+DQo+ID4gPiBBdHRhY2hlZCB1bi1hbmRyb2lkLWlmaWVkIHRlc3RjYXNl LiBQYXNzZXMgb24gYnBmLW5leHQsIHRyeWluZyB0byBzZWUNCj4gPiA+IHdoYXQgaGFwcGVucyBv biB2YW5pbGxhIDUuMTguIFdpbGwgdXBkYXRlIG9uY2UgSSBnZXQgbW9yZSBkYXRhLi4NCj4gPg0K PiA+IEkndmUgYmlzZWN0ZWQgdGhlIG9yaWdpbmFsIGlzc3VlIHRvOg0KPiA+DQo+ID4gYjQ0MTIz YjRhM2RjICgiYnBmOiBBZGQgY2dyb3VwIGhlbHBlcnMgYnBmX3tnZXQsc2V0fV9yZXR2YWwgdG8g Z2V0L3NldA0KPiA+IHN5c2NhbGwgcmV0dXJuIHZhbHVlIikNCj4gPg0KPiA+IEFuZCBJIGJlbGll dmUgaXQncyB0aGVzZSB0d28gbGluZXMgZnJvbSB0aGUgb3JpZ2luYWwgcGF0Y2g6DQo+ID4NCj4g PiAgI2RlZmluZSBCUEZfUFJPR19DR1JPVVBfSU5FVF9FR1JFU1NfUlVOX0FSUkFZKGFycmF5LCBj dHgsIGZ1bmMpCQlcDQo+ID4gIAkoewkJCQkJCVwNCj4gPiBAQCAtMTM5OCwxMCArMTM5OCwxMiBA QCBvdXQ6DQo+ID4gIAkJdTMyIF9yZXQ7CQkJCVwNCj4gPiAgCQlfcmV0ID0gQlBGX1BST0dfUlVO X0FSUkFZX0NHX0ZMQUdTKGFycmF5LCBjdHgsIGZ1bmMsIDAsICZfZmxhZ3MpOyBcDQo+ID4gIAkJ X2NuID0gX2ZsYWdzICYgQlBGX1JFVF9TRVRfQ047CQlcDQo+ID4gKwkJaWYgKF9yZXQgJiYgIUlT X0VSUl9WQUxVRSgobG9uZylfcmV0KSkJXA0KPiA+ICsJCQlfcmV0ID0gLUVGQVVMVDsJDQo+ID4N Cj4gPiBfcmV0IGlzIHUzMiBhbmQgcmV0IGdldHMgLTEgKGZmZmZmZmZmKS4gSVNfRVJSX1ZBTFVF KChsb25nKWZmZmZmZmZmKSAgDQo+IHJldHVybnMNCj4gPiBmYWxzZSBpbiB0aGlzIGNhc2UgYmVj YXVzZSBpdCBkb2Vzbid0IHNpZ24tZXhwYW5kIHRoZSBhcmd1bWVudCBhbmQgIA0KPiBpbnRlcm5h bGx5DQo+ID4gZG9lcyBmZmZmX2ZmZmYgPj0gZmZmZl9mZmZmX2ZmZmZfZjAwMSBjb21wYXJpc29u Lg0KPiA+DQo+ID4gSSdsbCB0cnkgdG8gc2VlIHdoYXQgSSd2ZSBjaGFuZ2VkIGluIG15IHVucmVs YXRlZCBwYXRjaCB0byBmaXggaXQuIEJ1dCAgDQo+IEkgdGhpbmsNCj4gPiB3ZSBzaG91bGQgYXVk aXQgYWxsIHRoZXNlIElTX0VSUl9WQUxVRSgobG9uZylfcmV0KSByZWdhcmRsZXNzOyB0aGV5ICAN Cj4gZG9uJ3QNCj4gPiBzZWVtIHRvIHdvcmsgdGhlIHdheSB3ZSB3YW50IHRoZW0gdG8uLi4NCg0K PiBPaywgYW5kIG15IHBhdGNoIGZpeGVzIGl0IGJlY2F1c2UgSSdtIHJlcGxhY2luZyAndTMyIF9y ZXQnIHdpdGggJ2ludCByZXQnLg0KDQo+IFNvLCBiYXNpY2FsbHksIHdpdGggdTMyIF9yZXQgd2Ug aGF2ZSB0byBkbyBJU19FUlJfVkFMVUUoKGxvbmcpKGludClfcmV0KS4NCg0KPiBTaWdoLi4NCg0K QW5kIHRvIGZvbGxvdyB1cCBvbiB0aGF0LCB0aGUgb3RoZXIgdHdvIHBsYWNlcyB3ZSBoYXZlIGFy ZSBmaW5lOg0KDQpJU19FUlJfVkFMVUUoKGxvbmcpcnVuX2N0eC5yZXR2YWwpKQ0KDQpydW5fY3R4 LnJldHZhbCBpcyBhbiBpbnQuDQo=