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Wed, 15 Jun 2022 13:26:11 -0700 (PDT) Date: Wed, 15 Jun 2022 13:26:09 -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 T24gMDYvMTUsIHNkZkBnb29nbGUuY29tIHdyb3RlOg0KPiBPbiAwNi8xNSwgTWFjaWVqIMW7ZW5j enlrb3dza2kgd3JvdGU6DQo+ID4gT24gV2VkLCBKdW4gMTUsIDIwMjIgYXQgMTA6MzggQU0gQWxl eGVpIFN0YXJvdm9pdG92DQo+ID4gPGFsZXhlaS5zdGFyb3ZvaXRvdkBnbWFpbC5jb20+IHdyb3Rl Og0KPiA+ID4NCj4gPiA+IE9uIFdlZCwgSnVuIDE1LCAyMDIyIGF0IDk6NTcgQU0gTWFjaWVqIMW7 ZW5jenlrb3dza2kgPG1hemVAZ29vZ2xlLmNvbT4NCj4gPiB3cm90ZToNCj4gPiA+ID4gPg0KPiA+ ID4gPiA+IEkndmUgY29uZmlybWVkIHZhbmlsbGEgNS4xOC4wIGlzIGJyb2tlbiwgYW5kIGFsbCBp dCB0YWtlcyBpcw0KPiA+ID4gPiA+IGNoZXJyeXBpY2tpbmcgdGhhdCBzcGVjaWZpYyBzdGFibGUg NS4xOC54IHBhdGNoIFsNCj4gPiA+ID4gPiA3MTBhODk4OWI0YjQwNjc5MDNmNWI2MTMxNGVkYTQ5 MTY2N2I2YWIzIF0gdG8gZml4IGJlaGF2aW91ci4NCj4gPiA+IC4uLg0KPiA+ID4gPiBiOGJkM2Vl MTk3MWQxZWRiYzUzY2YzMjJjMTQ5Y2EwMjI3NDcyZTU2IHRoaXMgaXMgd2hlcmUgd2UgYWRkZWQN Cj4gPiBFRkFVTFQgaW4gNS4xNg0KPiA+ID4NCj4gPiA+IFRoZXJlIGFyZSBubyBzdWNoIHNoYS1z IGluIHRoZSB1cHN0cmVhbSBrZXJuZWwuDQo+ID4gPiBTb3JyeSB3ZSBjYW5ub3QgaGVscCB3aXRo IGRlYnVnZ2luZyBvZiBhbmRyb2lkIGtlcm5lbHMuDQoNCj4gPiBZZXMsIHNkZkAgcXVvdGVkIHRo ZSB3cm9uZyBzaGExLCBpdCdzIGEgY2xlYW4gY2hlcnJ5cGljayB0byBhbg0KPiA+IGludGVybmFs IGJyYW5jaCBvZg0KPiA+ICdicGY6IEFkZCBjZ3JvdXAgaGVscGVycyBicGZfe2dldCxzZXR9X3Jl dHZhbCB0byBnZXQvc2V0IHN5c2NhbGwgcmV0dXJuDQo+ID4gdmFsdWUnDQo+ID4gY29tbWl0IGI0 NDEyM2I0YTNkY2FkNDY2NGQzYTBmNzJjMDExZmZkNGM5YzRkOTMuDQoNCj4gPiAgDQo+IGh0dHBz Oi8vZ2l0Lmtlcm5lbC5vcmcvcHViL3NjbS9saW51eC9rZXJuZWwvZ2l0L3N0YWJsZS9saW51eC5n aXQvY29tbWl0Lz9oPWxpbnV4LTUuMTYueSZpZD1iNDQxMjNiNGEzZGNhZDQ2NjRkM2EwZjcyYzAx MWZmZDRjOWM0ZDkzDQoNCj4gPiBBbnl3YXksIEkgdGhpbmsgaXQncyB1bnJlbGF0ZWQgLSBvciBh dCBsZWFzdCBub3QgdGhlIGltbWVkaWF0ZSByb290ICANCj4gY2F1c2UuDQoNCj4gPiBBbHNvIHRo ZXJlJ3MgKm5vKiBBbmRyb2lkIGtlcm5lbHMgaW52b2x2ZWQgaGVyZS4NCj4gPiBUaGlzIGlzIHRo ZSBhbmRyb2lkIG5ldCB0ZXN0cyBmYWlsaW5nIG9uIHZhbmlsbGEgNS4xOCBhbmQgcGFzc2luZyBv bg0KPiA+IDUuMTguMy4NCg0KPiBZZWFoLCBzb3JyeSwgZGlkbid0IG1lYW4gdG8gc2VuZCB0aG9z ZSBvdXRzaWRlIDotKQ0KDQo+IEF0dGFjaGVkIHVuLWFuZHJvaWQtaWZpZWQgdGVzdGNhc2UuIFBh c3NlcyBvbiBicGYtbmV4dCwgdHJ5aW5nIHRvIHNlZQ0KPiB3aGF0IGhhcHBlbnMgb24gdmFuaWxs YSA1LjE4LiBXaWxsIHVwZGF0ZSBvbmNlIEkgZ2V0IG1vcmUgZGF0YS4uDQoNCkkndmUgYmlzZWN0 ZWQgdGhlIG9yaWdpbmFsIGlzc3VlIHRvOg0KDQpiNDQxMjNiNGEzZGMgKCJicGY6IEFkZCBjZ3Jv dXAgaGVscGVycyBicGZfe2dldCxzZXR9X3JldHZhbCB0byBnZXQvc2V0DQpzeXNjYWxsIHJldHVy biB2YWx1ZSIpDQoNCkFuZCBJIGJlbGlldmUgaXQncyB0aGVzZSB0d28gbGluZXMgZnJvbSB0aGUg b3JpZ2luYWwgcGF0Y2g6DQoNCiAgI2RlZmluZSBCUEZfUFJPR19DR1JPVVBfSU5FVF9FR1JFU1Nf UlVOX0FSUkFZKGFycmF5LCBjdHgsIGZ1bmMpCQlcDQogIAkoewkJCQkJCVwNCkBAIC0xMzk4LDEw ICsxMzk4LDEyIEBAIG91dDoNCiAgCQl1MzIgX3JldDsJCQkJXA0KICAJCV9yZXQgPSBCUEZfUFJP R19SVU5fQVJSQVlfQ0dfRkxBR1MoYXJyYXksIGN0eCwgZnVuYywgMCwgJl9mbGFncyk7IFwNCiAg CQlfY24gPSBfZmxhZ3MgJiBCUEZfUkVUX1NFVF9DTjsJCVwNCisJCWlmIChfcmV0ICYmICFJU19F UlJfVkFMVUUoKGxvbmcpX3JldCkpCVwNCisJCQlfcmV0ID0gLUVGQVVMVDsJDQoNCl9yZXQgaXMg dTMyIGFuZCByZXQgZ2V0cyAtMSAoZmZmZmZmZmYpLiBJU19FUlJfVkFMVUUoKGxvbmcpZmZmZmZm ZmYpIHJldHVybnMNCmZhbHNlIGluIHRoaXMgY2FzZSBiZWNhdXNlIGl0IGRvZXNuJ3Qgc2lnbi1l eHBhbmQgdGhlIGFyZ3VtZW50IGFuZCAgDQppbnRlcm5hbGx5DQpkb2VzIGZmZmZfZmZmZiA+PSBm ZmZmX2ZmZmZfZmZmZl9mMDAxIGNvbXBhcmlzb24uDQoNCkknbGwgdHJ5IHRvIHNlZSB3aGF0IEkn dmUgY2hhbmdlZCBpbiBteSB1bnJlbGF0ZWQgcGF0Y2ggdG8gZml4IGl0LiBCdXQgSSAgDQp0aGlu aw0Kd2Ugc2hvdWxkIGF1ZGl0IGFsbCB0aGVzZSBJU19FUlJfVkFMVUUoKGxvbmcpX3JldCkgcmVn YXJkbGVzczsgdGhleSBkb24ndA0Kc2VlbSB0byB3b3JrIHRoZSB3YXkgd2Ugd2FudCB0aGVtIHRv Li4uDQo=