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Wed, 15 Jun 2022 13:33:00 -0700 (PDT) Date: Wed, 15 Jun 2022 13:32:59 -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: bpf@vger.kernel.org T24gMDYvMTUsIFN0YW5pc2xhdiBGb21pY2hldiB3cm90ZToNCj4gT24gMDYvMTUsIHNkZkBnb29n bGUuY29tIHdyb3RlOg0KPiA+IE9uIDA2LzE1LCBNYWNpZWogxbtlbmN6eWtvd3NraSB3cm90ZToN Cj4gPiA+IE9uIFdlZCwgSnVuIDE1LCAyMDIyIGF0IDEwOjM4IEFNIEFsZXhlaSBTdGFyb3ZvaXRv dg0KPiA+ID4gPGFsZXhlaS5zdGFyb3ZvaXRvdkBnbWFpbC5jb20+IHdyb3RlOg0KPiA+ID4gPg0K PiA+ID4gPiBPbiBXZWQsIEp1biAxNSwgMjAyMiBhdCA5OjU3IEFNIE1hY2llaiDFu2VuY3p5a293 c2tpICANCj4gPG1hemVAZ29vZ2xlLmNvbT4NCj4gPiA+IHdyb3RlOg0KPiA+ID4gPiA+ID4NCj4g PiA+ID4gPiA+IEkndmUgY29uZmlybWVkIHZhbmlsbGEgNS4xOC4wIGlzIGJyb2tlbiwgYW5kIGFs bCBpdCB0YWtlcyBpcw0KPiA+ID4gPiA+ID4gY2hlcnJ5cGlja2luZyB0aGF0IHNwZWNpZmljIHN0 YWJsZSA1LjE4LnggcGF0Y2ggWw0KPiA+ID4gPiA+ID4gNzEwYTg5ODliNGI0MDY3OTAzZjViNjEz MTRlZGE0OTE2NjdiNmFiMyBdIHRvIGZpeCBiZWhhdmlvdXIuDQo+ID4gPiA+IC4uLg0KPiA+ID4g PiA+IGI4YmQzZWUxOTcxZDFlZGJjNTNjZjMyMmMxNDljYTAyMjc0NzJlNTYgdGhpcyBpcyB3aGVy ZSB3ZSBhZGRlZA0KPiA+ID4gRUZBVUxUIGluIDUuMTYNCj4gPiA+ID4NCj4gPiA+ID4gVGhlcmUg YXJlIG5vIHN1Y2ggc2hhLXMgaW4gdGhlIHVwc3RyZWFtIGtlcm5lbC4NCj4gPiA+ID4gU29ycnkg d2UgY2Fubm90IGhlbHAgd2l0aCBkZWJ1Z2dpbmcgb2YgYW5kcm9pZCBrZXJuZWxzLg0KPiA+DQo+ ID4gPiBZZXMsIHNkZkAgcXVvdGVkIHRoZSB3cm9uZyBzaGExLCBpdCdzIGEgY2xlYW4gY2hlcnJ5 cGljayB0byBhbg0KPiA+ID4gaW50ZXJuYWwgYnJhbmNoIG9mDQo+ID4gPiAnYnBmOiBBZGQgY2dy b3VwIGhlbHBlcnMgYnBmX3tnZXQsc2V0fV9yZXR2YWwgdG8gZ2V0L3NldCBzeXNjYWxsICANCj4g cmV0dXJuDQo+ID4gPiB2YWx1ZScNCj4gPiA+IGNvbW1pdCBiNDQxMjNiNGEzZGNhZDQ2NjRkM2Ew ZjcyYzAxMWZmZDRjOWM0ZDkzLg0KPiA+DQo+ID4gPiAgDQo+IGh0dHBzOi8vZ2l0Lmtlcm5lbC5v cmcvcHViL3NjbS9saW51eC9rZXJuZWwvZ2l0L3N0YWJsZS9saW51eC5naXQvY29tbWl0Lz9oPWxp bnV4LTUuMTYueSZpZD1iNDQxMjNiNGEzZGNhZDQ2NjRkM2EwZjcyYzAxMWZmZDRjOWM0ZDkzDQo+ ID4NCj4gPiA+IEFueXdheSwgSSB0aGluayBpdCdzIHVucmVsYXRlZCAtIG9yIGF0IGxlYXN0IG5v dCB0aGUgaW1tZWRpYXRlIHJvb3QgIA0KPiBjYXVzZS4NCj4gPg0KPiA+ID4gQWxzbyB0aGVyZSdz ICpubyogQW5kcm9pZCBrZXJuZWxzIGludm9sdmVkIGhlcmUuDQo+ID4gPiBUaGlzIGlzIHRoZSBh bmRyb2lkIG5ldCB0ZXN0cyBmYWlsaW5nIG9uIHZhbmlsbGEgNS4xOCBhbmQgcGFzc2luZyBvbg0K PiA+ID4gNS4xOC4zLg0KPiA+DQo+ID4gWWVhaCwgc29ycnksIGRpZG4ndCBtZWFuIHRvIHNlbmQg dGhvc2Ugb3V0c2lkZSA6LSkNCj4gPg0KPiA+IEF0dGFjaGVkIHVuLWFuZHJvaWQtaWZpZWQgdGVz dGNhc2UuIFBhc3NlcyBvbiBicGYtbmV4dCwgdHJ5aW5nIHRvIHNlZQ0KPiA+IHdoYXQgaGFwcGVu cyBvbiB2YW5pbGxhIDUuMTguIFdpbGwgdXBkYXRlIG9uY2UgSSBnZXQgbW9yZSBkYXRhLi4NCg0K PiBJJ3ZlIGJpc2VjdGVkIHRoZSBvcmlnaW5hbCBpc3N1ZSB0bzoNCg0KPiBiNDQxMjNiNGEzZGMg KCJicGY6IEFkZCBjZ3JvdXAgaGVscGVycyBicGZfe2dldCxzZXR9X3JldHZhbCB0byBnZXQvc2V0 DQo+IHN5c2NhbGwgcmV0dXJuIHZhbHVlIikNCg0KPiBBbmQgSSBiZWxpZXZlIGl0J3MgdGhlc2Ug dHdvIGxpbmVzIGZyb20gdGhlIG9yaWdpbmFsIHBhdGNoOg0KDQo+ICAgI2RlZmluZSBCUEZfUFJP R19DR1JPVVBfSU5FVF9FR1JFU1NfUlVOX0FSUkFZKGFycmF5LCBjdHgsIGZ1bmMpCQlcDQo+ICAg CSh7CQkJCQkJXA0KPiBAQCAtMTM5OCwxMCArMTM5OCwxMiBAQCBvdXQ6DQo+ICAgCQl1MzIgX3Jl dDsJCQkJXA0KPiAgIAkJX3JldCA9IEJQRl9QUk9HX1JVTl9BUlJBWV9DR19GTEFHUyhhcnJheSwg Y3R4LCBmdW5jLCAwLCAmX2ZsYWdzKTsgXA0KPiAgIAkJX2NuID0gX2ZsYWdzICYgQlBGX1JFVF9T RVRfQ047CQlcDQo+ICsJCWlmIChfcmV0ICYmICFJU19FUlJfVkFMVUUoKGxvbmcpX3JldCkpCVwN Cj4gKwkJCV9yZXQgPSAtRUZBVUxUOwkNCg0KPiBfcmV0IGlzIHUzMiBhbmQgcmV0IGdldHMgLTEg KGZmZmZmZmZmKS4gSVNfRVJSX1ZBTFVFKChsb25nKWZmZmZmZmZmKSAgDQo+IHJldHVybnMNCj4g ZmFsc2UgaW4gdGhpcyBjYXNlIGJlY2F1c2UgaXQgZG9lc24ndCBzaWduLWV4cGFuZCB0aGUgYXJn dW1lbnQgYW5kICANCj4gaW50ZXJuYWxseQ0KPiBkb2VzIGZmZmZfZmZmZiA+PSBmZmZmX2ZmZmZf ZmZmZl9mMDAxIGNvbXBhcmlzb24uDQoNCj4gSSdsbCB0cnkgdG8gc2VlIHdoYXQgSSd2ZSBjaGFu Z2VkIGluIG15IHVucmVsYXRlZCBwYXRjaCB0byBmaXggaXQuIEJ1dCBJICANCj4gdGhpbmsNCj4g d2Ugc2hvdWxkIGF1ZGl0IGFsbCB0aGVzZSBJU19FUlJfVkFMVUUoKGxvbmcpX3JldCkgcmVnYXJk bGVzczsgdGhleSBkb24ndA0KPiBzZWVtIHRvIHdvcmsgdGhlIHdheSB3ZSB3YW50IHRoZW0gdG8u Li4NCg0KT2ssIGFuZCBteSBwYXRjaCBmaXhlcyBpdCBiZWNhdXNlIEknbSByZXBsYWNpbmcgJ3Uz MiBfcmV0JyB3aXRoICdpbnQgcmV0Jy4NCg0KU28sIGJhc2ljYWxseSwgd2l0aCB1MzIgX3JldCB3 ZSBoYXZlIHRvIGRvIElTX0VSUl9WQUxVRSgobG9uZykoaW50KV9yZXQpLg0KDQpTaWdoLi4NCg==