From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from baidu.com (mx22.baidu.com [220.181.50.185]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 5900020F062 for ; Tue, 8 Jul 2025 02:01:06 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=220.181.50.185 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1751940070; cv=none; b=f23rqHyJ/vYZmLnP5/Xu/x8Jz4FwBuF0E7PIvdOn/4ntenP227VnxiXwWf4oqd23k1xXNeQLrQktDY4tmQkY/UzF+ADI3wOSXlffDgxUS8Qmyw8tw+JrHwJh1yQ5Um5sWrdqwQgqTF16TYBwTrXeXP+uQ9cULDf5QBESoP7gjwA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1751940070; c=relaxed/simple; bh=eyZdCPp13Bznow8kxvhtOAc1H48jsEJT70DS8mOegpQ=; h=From:To:CC:Subject:Date:Message-ID:References:In-Reply-To: Content-Type:MIME-Version; b=dejYQl9chcLGwFZETxoXZqaMMgYXFpNeh/cpmMXFLsnZiGiVMARis1K0CO6Y8CeNiXwYWDBpuS8uTU0VCKmjwEOFMcY+Ltkkgh6ALiroPl0VYsbNX8+NSFspP7qYLAmU3bQ4NxC5AfHWNb2v8RBpKbQnVchqdaybCfOjtvlKnPc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=baidu.com; spf=pass smtp.mailfrom=baidu.com; arc=none smtp.client-ip=220.181.50.185 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=baidu.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=baidu.com From: "Li,Rongqing" To: Steven Rostedt CC: Oleg Nesterov , Peter Zijlstra , David Laight , "linux-kernel@vger.kernel.org" , "vschneid@redhat.com" , "mgorman@suse.de" , "bsegall@google.com" , "dietmar.eggemann@arm.com" , "vincent.guittot@linaro.org" , "juri.lelli@redhat.com" , "mingo@redhat.com" Subject: =?gb2312?B?tPC4tDogWz8/Pz9dIFJlOiBbPz8/P10gUmU6IGRpdmlkZSBlcnJvciBpbiB4?= =?gb2312?Q?86_and_cputime?= Thread-Topic: [????] Re: [????] Re: divide error in x86 and cputime Thread-Index: AQHb76u7B2Ok5ffmWUu9olkbSlbR1g== Date: Tue, 8 Jul 2025 01:58:00 +0000 Message-ID: <8f68278c4a454fd79b39cf21d4c0974f@baidu.com> References: <78a0d7bb20504c0884d474868eccd858@baidu.com> <20250707220937.GA15787@redhat.com> <20250707182056.66a8468a@gandalf.local.home> <20250707183331.029570bf@gandalf.local.home> <42f5344b80e244278aaf49f112498e02@baidu.com> <20250707215322.0e4ec431@gandalf.local.home> In-Reply-To: <20250707215322.0e4ec431@gandalf.local.home> Accept-Language: zh-CN, en-US Content-Language: zh-CN X-MS-Has-Attach: X-MS-TNEF-Correlator: Content-Type: text/plain; charset="gb2312" Content-Transfer-Encoding: base64 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-FEAS-Client-IP: 172.31.50.15 X-FE-Policy-ID: 52:10:53:SYSTEM PiAiTGksUm9uZ3FpbmciIDxsaXJvbmdxaW5nQGJhaWR1LmNvbT4gd3JvdGU6DQo+IA0KPiA+ID4g VGhhdCB3b3VsZCBiZToNCj4gPiA+DQo+ID4gPiAgICAgICAgICAgICAgICAgICAgICAgICAgICAg ICAgICAgIG1pbnV0ZXMgICAgZGF5cw0KPiA+ID4gICAgICAgICAgICAgICAgICAgICAgICAgICAg ICAgICAgICAgICB2ICAgICAgICB2DQo+ID4gPiAgIDkyMjMzNzIwMzY4NTQ3NzU4MDggLyAxMDAw MDAwMDAwIC8gNjAgLyA2MCAvIDI0IC8gMzY1LjI1ID0gMjkyLjI3DQo+ID4gPiAgICAgICAgICAg ICAgICAgICAgICAgICAgICBeICAgICAgICAgICAgICAgXiAgICAgICAgIF4NCj4gPiA+ICAgICAg ICAgICAgICAgICAgICAgICAgIG5zIC0+IHNlYyAgICAgICBob3VycyAgICAgICB5ZWFycw0KPiA+ ID4NCj4gPiA+IFNvIHRoZSByZXBvcnQgc2F5cyB0aGV5IGhhdmUgdGhyZWFkcyBydW5uaW5nIGZv ciBhIHZlcnkgbG9uZyB0aW1lLA0KPiA+ID4gaXQgd291bGQgc3RpbGwgYmUgMjkyIHllYXJzIG9m IHJ1biB0aW1lIQ0KPiA+DQo+ID4gVXRpbWUvcnRpbWUgaXMgdTY0LCBpdCBtZWFucyBvdmVyZmxv dyBuZWVkcyAyOTIuMjcqMj01ODQgeWVhciwNCj4gPg0KPiA+IEJ1dCB3aXRoIG11bHRpcGxlIHRo cmVhZCwgbGlrZSAyOTIgdGhyZWFkcywgaXQgb25seSBuZWVkIHR3byB5ZWFycywgaXQNCj4gPiBp cyBhIHRocmVhZCBncm91cCB0b3RhbCBydW5uaW5nIHRpbWUNCj4gPg0KPiA+DQo+ID4gdm9pZCB0 aHJlYWRfZ3JvdXBfY3B1dGltZV9hZGp1c3RlZChzdHJ1Y3QgdGFza19zdHJ1Y3QgKnAsIHU2NCAq dXQsIHU2NA0KPiA+ICpzdCkgew0KPiA+ICAgICBzdHJ1Y3QgdGFza19jcHV0aW1lIGNwdXRpbWU7 DQo+ID4NCj4gPiAgICAgdGhyZWFkX2dyb3VwX2NwdXRpbWUocCwgJmNwdXRpbWUpOw0KPiA+ICAg ICBjcHV0aW1lX2FkanVzdCgmY3B1dGltZSwgJnAtPnNpZ25hbC0+cHJldl9jcHV0aW1lLCB1dCwg c3QpOyB9DQo+ID4NCj4gDQo+IFNvIHlvdSBhcmUgc2F5aW5nIHRoYXQgeW91IGhhdmUgYmVlbiBy dW5uaW5nIHRoaXMgZm9yIG92ZXIgdHdvIHllYXJzIHdpdGhvdXQgYQ0KPiByZWJvb3Q/DQo+IA0K DQpZZXMsIENvbnNpZGVyIG1vcmUgYW5kIG1vcmUgQ1BVcyBpbiBtYWNoaW5lLCBJIHRoaW5rIGl0 IGlzIGNvbW1vbiBjYXNlDQoNCg0KPiBUaGVuIHRoZSBpc3N1ZSBpc24ndCB0aGUgZGl2aWRlciwg aXQncyB0aGF0IHRoZSB0aHJlYWQgZ3JvdXAgY3B1dGltZSBjYW4gb3ZlcmZsb3cuDQo+IFBlcmhh cHMgaXQgbmVlZHMgYSBjYXAsIG9yIGEgd2F5IHRvICJyZXNldCIgc29tZWhvdyBhZnRlciAic28g bG9uZyI/DQoNCg0KRG8gbm90IGNsZWFyIGhvdyB0byByZXNldA0KDQpCdXQgbXVsX3U2NF91NjRf ZGl2X3U2NCgpIGZvciB4ODYgc2hvdWxkIG5vdCB0cmlnZ2VyIGEgZGl2aXNpb24gZXJyb3IgcGFu aWMsIG1heWJlIHNob3VsZCByZXR1cm4gYSBVTExPTkdfTUFYIG9uICNERSAobGlrZSBub24teDg2 IG11bF91NjRfdTY0X2Rpdl91NjQoKSwpDQoNCj4gDQo+IC0tIFN0ZXZlDQoNCg==