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Thu, 03 Oct 2024 06:41:29 +0200 Message-ID: <2ffbd642407a2bc51a387b6f89e74f0f9c9f85cf.camel@gmx.de> Subject: Re: sched/fair: Kernel panics in pick_next_entity From: Mike Galbraith To: Benjamin Segall Cc: Vishal Chourasia , Peter Zijlstra , linux-kernel@vger.kernel.org, Ingo Molnar , Vincent Guittot , Juri Lelli , Dietmar Eggemann , Steven Rostedt , Mel Gorman , Valentin Schneider , luis.machado@arm.com Date: Thu, 03 Oct 2024 06:41:27 +0200 In-Reply-To: References: <20240930144157.GH5594@noisy.programming.kicks-ass.net> <55a2acefffb8c99e4234bd18656a75625447c2d0.camel@gmx.de> Content-Type: text/plain; charset="UTF-8" User-Agent: Evolution 3.42.4 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: base64 X-Provags-ID: V03:K1:XocQmXif/l0rU7RM1fgtl5fW6Y9JmSnDY6yC3G5rQQ2Eqw+QvuC DIqgYPuZKl/dgmlUARz44OAcEErYlzLBNEOrc0ZsCeFJpKvsr7Wj1XpOaE6M4g3t1fccy6c mgua0uYcknxVIhcD2RXlaYPH+TGMmGHEKmdEX/yvV2az2ElmTH5M8pSEYjnpp/iAQU8EXl1 f6z7N87F9U9zdry9KnS3g== X-Spam-Flag: NO UI-OutboundReport: notjunk:1;M01:P0:8jyHNBya2EI=;Hg7b5epOI6rvNIiacOynEL7c7jQ Gkh31mlVPvAtM9CnO8L+B4/z/KZwUhcvwRtqgOPD+SMVm69hv0fMU6Tl4ZLUWPxQMdKyqD+Zk vt9eTZiBtdFgQxGNm0NYCfc9T2T7Wt1I/9mhay91mLwffCZpFzCjMXLhxmLyM92sOwHFidUQ0 StwPGNUhFPNdY/QicvHu2xZ81DkWZt03NjhhntMCRnx8lOpCp1sOTZc7YXY+ujLmpwRxyLAUs +QtMHBmc5V6SR7U55tn2PD6CKk2F7ZGkGvw9uKIJumuzGzjUc0xVXcLXNGdO5khr5ab8JOPYg Cg2C8xeyan1p9lwb8ZqHznpNXVpDPS+cZaM5lJrNIL6dOO+ot7/+F6pkvMXls/GRcHr3bB0sM MgsswgVSiOEhB3+EGyQt1v/ZmBTrRuLotXkRn3Nbs255e5Nciy77P3G2YaVpKEBQL5n+NSEH1 jiQ0yHeXiW+7CHE3EpMgJL7EVXzC8eGLDDZkRIVBAwy/L9XoMD7jYoEQ6RqHlPwxo4v2xIpO7 I71l4K22NFNEhvjbUGklmukzqXgvZO/bw5pBoQnPF//JF69SUK6N0WvHWkZYzvc+wLJ91cj5T PjT0qg9Eiw+8ayyZqB5XS5JaJto+RtDAeg4hKzo92H0crmi7DILJ2SCj+Tgc/OwBvvPgYtiT5 S/hwI17zyQujm3t3/gtpNIGNAWnyI/4wZmIWJKGuYLtgTRrUFeN/BhJzR+uwH2zLXJTTq7H1O sVgAzT5ikA5nIEKTs1sAzWKB9o4cR+UxF1CKIIlGjYwrgYOHN4dxC1XvFVt2kZUKGO4kx6Tsd o0HoBYhro2cAKhxLwfs6ocjA== T24gV2VkLCAyMDI0LTEwLTAyIGF0IDE1OjMxIC0wNzAwLCBCZW5qYW1pbiBTZWdhbGwgd3JvdGU6 DQo+IE1pa2UgR2FsYnJhaXRoIDxlZmF1bHRAZ214LmRlPiB3cml0ZXM6DQo+ID4gDQo+ID4gLS0t DQo+ID4gwqBrZXJuZWwvc2NoZWQvZmFpci5jIHzCoMKgwqAgOSArKysrKystLS0NCj4gPiDCoDEg ZmlsZSBjaGFuZ2VkLCA2IGluc2VydGlvbnMoKyksIDMgZGVsZXRpb25zKC0pDQo+ID4gDQo+ID4g LS0tIGEva2VybmVsL3NjaGVkL2ZhaXIuYw0KPiA+ICsrKyBiL2tlcm5lbC9zY2hlZC9mYWlyLmMN Cj4gPiBAQCAtNjA1OCwxMCArNjA1OCwxMyBAQCB2b2lkIHVudGhyb3R0bGVfY2ZzX3JxKHN0cnVj dCBjZnNfcnEgKmNmDQo+ID4gwqDCoMKgwqDCoMKgwqDCoGZvcl9lYWNoX3NjaGVkX2VudGl0eShz ZSkgew0KPiA+IMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgc3RydWN0IGNmc19ycSAq cWNmc19ycSA9IGNmc19ycV9vZihzZSk7DQo+ID4gDQo+ID4gLcKgwqDCoMKgwqDCoMKgwqDCoMKg wqDCoMKgwqDCoGlmIChzZS0+b25fcnEpIHsNCj4gPiAtwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKg wqDCoMKgwqDCoMKgwqDCoMKgwqDCoFNDSEVEX1dBUk5fT04oc2UtPnNjaGVkX2RlbGF5ZWQpOw0K PiA+ICvCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqAvKiBIYW5kbGUgYW55IHVuZmluaXNo ZWQgREVMQVlfREVRVUVVRSBidXNpbmVzcyBmaXJzdC4gKi8NCj4gPiArwqDCoMKgwqDCoMKgwqDC oMKgwqDCoMKgwqDCoMKgaWYgKHNlLT5zY2hlZF9kZWxheWVkKSB7DQo+ID4gK8KgwqDCoMKgwqDC oMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqBpbnQgZmxhZ3MgPSBERVFVRVVFX1NM RUVQIHwgREVRVUVVRV9ERUxBWUVEOw0KPiA+ICsNCj4gPiArwqDCoMKgwqDCoMKgwqDCoMKgwqDC oMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoGRlcXVldWVfZW50aXR5KHFjZnNfcnEsIHNlLCBmbGFn cyk7DQo+ID4gK8KgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoH0gZWxzZSBpZiAoc2UtPm9u X3JxKQ0KPiA+IMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDC oGJyZWFrOw0KPiA+IC3CoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqB9DQo+ID4gwqDCoMKg wqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqBlbnF1ZXVlX2VudGl0eShxY2ZzX3JxLCBzZSwgRU5R VUVVRV9XQUtFVVApOw0KPiA+IA0KPiA+IMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKg aWYgKGNmc19ycV9pc19pZGxlKGdyb3VwX2Nmc19ycShzZSkpKQ0KPiANCj4gWWVhaCwgaWYgd2Ug Y2FuIHdpbmQgdXAgaGVyZSB0byBoaXQgdGhhdCB3YXJuaW5nLCB0aGVuIHdlIG5lZWQgdG8gZ2V0 IGl0DQo+IG91dCBvZiBkZWxheSBzdGF0ZSwgbm90IGp1c3QgbGVhdmUgaXQuIFdoZXRoZXIgZGVx dWV1ZV9lbnRpdHkgKw0KPiBlbnF1ZXVlX2VudGl0eSBpcyBiZXR0ZXIgb3Igd29yc2UgdGhhbiBy ZXF1ZXVlX2RlbGF5ZWRfZW50aXR5ICgrIGJyZWFrKSwgSSByZWFsbHkNCj4gZG9uJ3Qga25vdy4N Cg0KSG0sIEknZCBzYXkgcmVxdWV1ZV9kZWxheWVkX2VudGl0eSgpIG5vdCBvbmx5IGZpdHMgYmV0 dGVyLCBpdCB1c2luZw0KbGVzcyBsaW5lcyBnaXZlcyBpdCBhbiBleHRyYSBicm93bmllIHBvaW50 Lg0KDQoJLU1pa2UNCg==