From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from baidu.com (mx24.baidu.com [111.206.215.185]) (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 CA7E142AB0 for ; Tue, 8 Jul 2025 01:42:30 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=111.206.215.185 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1751938954; cv=none; b=Yt8D72YPmyNEf2QWGg+zENvX2l+h0SHSJgFO8i3oeRq5U5PqtZgvq3iwohcR4N8ntZJUR4aK/EcF94VHaqW9TJWXQGbER7DTNFxHAnr07F4x88qAjReb9YPV8fa1r3SPY/F2LKY1binu6pYdlma5G3hFDFO2F3Xf/tWkY8cDvf4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1751938954; c=relaxed/simple; bh=2BSYKr7kSQko0CWJMRNlwpfMOg9o3FHtNDXqN4FkLro=; h=From:To:CC:Subject:Date:Message-ID:References:In-Reply-To: Content-Type:MIME-Version; b=r4XSPPMIyr8uZYga57g436GyJA+CUuLOVde8ZAxaqGiV+SWyYf4Euf6jWY336hW3wPrYKbBJof7sYqTuB+NuRrN12V0JPdmw1leTkqAU6XLzNVCVJJ12kYVgngw16ANLlP5gLl22GCA92Y4BuLkQ/x73VmoPdcain+ot4o05JX4= 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=111.206.215.185 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 , Oleg Nesterov CC: 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/Pz9dIFJlOiBkaXZpZGUgZXJyb3IgaW4geDg2IGFuZCBjcHV0?= =?gb2312?Q?ime?= Thread-Topic: [????] Re: divide error in x86 and cputime Thread-Index: AdvvFOeRwP1XMiJ8Sh6ojy4vzov+4AAM96oAAABlCAAAAHCBgAAXFAAA Date: Tue, 8 Jul 2025 01:40:27 +0000 Message-ID: <42f5344b80e244278aaf49f112498e02@baidu.com> References: <78a0d7bb20504c0884d474868eccd858@baidu.com> <20250707220937.GA15787@redhat.com> <20250707182056.66a8468a@gandalf.local.home> <20250707183331.029570bf@gandalf.local.home> In-Reply-To: <20250707183331.029570bf@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: 172.31.50.44 X-FE-Policy-ID: 52:10:53:SYSTEM PiBUaGF0IHdvdWxkIGJlOg0KPiANCj4gICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAg ICBtaW51dGVzICAgIGRheXMNCj4gICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAg ICB2ICAgICAgICB2DQo+ICAgOTIyMzM3MjAzNjg1NDc3NTgwOCAvIDEwMDAwMDAwMDAgLyA2MCAv IDYwIC8gMjQgLyAzNjUuMjUgPSAyOTIuMjcNCj4gICAgICAgICAgICAgICAgICAgICAgICAgICAg XiAgICAgICAgICAgICAgIF4gICAgICAgICBeDQo+ICAgICAgICAgICAgICAgICAgICAgICAgIG5z IC0+IHNlYyAgICAgICBob3VycyAgICAgICB5ZWFycw0KPiANCj4gU28gdGhlIHJlcG9ydCBzYXlz IHRoZXkgaGF2ZSB0aHJlYWRzIHJ1bm5pbmcgZm9yIGEgdmVyeSBsb25nIHRpbWUsIGl0IHdvdWxk IHN0aWxsDQo+IGJlIDI5MiB5ZWFycyBvZiBydW4gdGltZSENCg0KVXRpbWUvcnRpbWUgaXMgdTY0 LCBpdCBtZWFucyBvdmVyZmxvdyBuZWVkcyAyOTIuMjcqMj01ODQgeWVhciwNCg0KQnV0IHdpdGgg bXVsdGlwbGUgdGhyZWFkLCBsaWtlIDI5MiB0aHJlYWRzLCBpdCBvbmx5IG5lZWQgdHdvIHllYXJz LCBpdCBpcyBhIHRocmVhZCBncm91cCB0b3RhbCBydW5uaW5nIHRpbWUNCg0KDQp2b2lkIHRocmVh ZF9ncm91cF9jcHV0aW1lX2FkanVzdGVkKHN0cnVjdCB0YXNrX3N0cnVjdCAqcCwgdTY0ICp1dCwg dTY0ICpzdCkNCnsNCiAgICBzdHJ1Y3QgdGFza19jcHV0aW1lIGNwdXRpbWU7DQoNCiAgICB0aHJl YWRfZ3JvdXBfY3B1dGltZShwLCAmY3B1dGltZSk7DQogICAgY3B1dGltZV9hZGp1c3QoJmNwdXRp bWUsICZwLT5zaWduYWwtPnByZXZfY3B1dGltZSwgdXQsIHN0KTsNCn0NCg0KLUxpDQoNCg0KDQo=