From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from [222.73.24.84] (helo=song.cn.fujitsu.com) by merlin.infradead.org with esmtp (Exim 4.76 #1 (Red Hat Linux)) id 1Tcnrk-0002uM-C1 for kexec@lists.infradead.org; Mon, 26 Nov 2012 01:52:09 +0000 Message-ID: <50B2CACD.2000103@cn.fujitsu.com> Date: Mon, 26 Nov 2012 09:50:05 +0800 From: Zhang Yanfei MIME-Version: 1.0 Subject: Re: [PATCH v8 0/2] x86: vmclear vmcss on all cpus when doing kdump if necessary References: <50ADE0C2.1000106@cn.fujitsu.com> <20121125142642.GC25516@redhat.com> In-Reply-To: <20121125142642.GC25516@redhat.com> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: kexec-bounces@lists.infradead.org Errors-To: kexec-bounces+dwmw2=infradead.org@lists.infradead.org To: Gleb Natapov Cc: "x86@kernel.org" , "kexec@lists.infradead.org" , "linux-kernel@vger.kernel.org" , "kvm@vger.kernel.org" , Marcelo Tosatti 5LqOIDIwMTLlubQxMeaciDI15pelIDIyOjI2LCBHbGViIE5hdGFwb3Yg5YaZ6YGTOgo+IE9uIFRo dSwgTm92IDIyLCAyMDEyIGF0IDA0OjIyOjI2UE0gKzA4MDAsIFpoYW5nIFlhbmZlaSB3cm90ZToK Pj4gQ3VycmVudGx5LCBrZHVtcCBqdXN0IG1ha2VzIGFsbCB0aGUgbG9naWNhbCBwcm9jZXNzb3Jz IGxlYXZlIFZNWCBvcGVyYXRpb24gYnkKPj4gZXhlY3V0aW5nIFZNWE9GRiBpbnN0cnVjdGlvbiwg c28gYW55IFZNQ1NzIGFjdGl2ZSBvbiB0aGUgbG9naWNhbCBwcm9jZXNzb3JzIG1heQo+PiBiZSBj b3JydXB0ZWQuIEJ1dCwgc29tZXRpbWVzLCB3ZSBuZWVkIHRoZSBWTUNTcyB0byBkZWJ1ZyBndWVz dCBpbWFnZXMgY29udGFpbmVkCj4+IGluIHRoZSBob3N0IHZtY29yZS4gVG8gcHJldmVudCB0aGUg Y29ycnVwdGlvbiwgd2Ugc2hvdWxkIFZNQ0xFQVIgdGhlIFZNQ1NzIGJlZm9yZQo+PiBleGVjdXRp bmcgdGhlIFZNWE9GRiBpbnN0cnVjdGlvbi4KPj4KPj4gVGhlIHBhdGNoIHNldCBwcm92aWRlcyBh IHdheSB0byBWTUNMRUFSIHZtY3NzIHJlbGF0ZWQgdG8gZ3Vlc3RzIG9uIGFsbCBjcHVzIGJlZm9y ZQo+PiBleGVjdXRpbmcgdGhlIFZNWE9GRiB3aGVuIGRvaW5nIGtkdW1wLiBUaGlzIGlzIHVzZWQg dG8gZW5zdXJlIHRoZSBWTUNTcyBpbiB0aGUKPj4gdm1jb3JlIHVwZGF0ZWQgYW5kIG5vbi1jb3Jy dXB0ZWQuCj4+Cj4gTG9va3MgZmluZSB0byBtZSwgYnV0IGtleGVjIHBhcnQgc2hvdWxkIGdldCBh Y2tzIGZyb20gZXhlYyBtYWludGFpbmVycy4KClRoYW5rcy4gSSB3aWxsIGFzayB0aGUgZXhlYyBt YWludGFpbmVyLgoKPiAKPj4gQ2hhbmdlbG9nIGZyb20gdjcgdG8gdjg6Cj4+IDEuIEtFWEVDOiBy ZWdyZXNzaW9uIGZvciB1c2luZyBuYW1lIGNyYXNoX25vdGlmaWVyX2xpc3QKPj4gICAgYW5kIHJl bW92ZSBjb21tZW50cyByZWxhdGVkIHRvIEtWTQo+PiAgICBhbmQganVzdCBjYWxsIGZ1bmN0aW9u IGF0b21pY19ub3RpZmllcl9jYWxsX2NoYWluIGRpcmVjdGx5Lgo+Pgo+PiBDaGFuZ2Vsb2cgZnJv bSB2NiB0byB2NzoKPj4gMS4gS1ZNLUlOVEVMOiBpbiBoYXJkd2FyZV9kaXNhYmxlLCB3ZSBuZWVk bid0IGRpc2FibGUgdGhlCj4+ICAgIHZtY2xlYXIsIHNvIHJlbW92ZSBpdC4KPj4KPj4gQ2hhbmdl bG9nIGZyb20gdjUgdG8gdjY6Cj4+IDEuIEtFWEVDOiB0aGUgYXRvbWljIG5vdGlmaWVyIGxpc3Qg cmVuYW1lZDoKPj4gICAgY3Jhc2hfbm90aWZpZXJfbGlzdCAtLT4gdm1jbGVhcl9ub3RpZmllcl9s aXN0Cj4+IDIuIEtWTS1JTlRFTDogcHJvdmlkZSBlbXB0eSBmdW5jdGlvbnMgaWYgQ09ORklHX0tF WEVDIGlzCj4+ICAgIG5vdCBkZWZpbmVkIGFuZCByZW1vdmUgdW5uZWNlc3NhcnkgI2lmZGVmJ3Mu Cj4+Cj4+IENoYW5nZWxvZyBmcm9tIHY0IHRvIHY1Ogo+PiAxLiB1c2UgYW4gYXRvbWljIG5vdGlm aWVyIGluc3RlYWQgb2YgZnVuY3Rpb24gY2FsbCwgc28KPj4gICAgaGF2ZSBhbGwgdGhlIHZtY2xl YXIgY29kZXMgaW4gdm14LmMuCj4+Cj4+IENoYW5nZWxvZyBmcm9tIHYzIHRvIHY0Ogo+PiAxLiBh ZGQgYSBuZXcgcGVyY3B1IHZhcmlhYmxlIHZtY2xlYXJfc2tpcHBlZCB0byBza2lwCj4+ICAgIHZt Y2xlYXIgaW4ga2R1bXAgaW4gc29tZSBjb25kaXRpb25zLgo+Pgo+PiBDaGFuZ2Vsb2cgZnJvbSB2 MiB0byB2MzoKPj4gMS4gcmVtb3ZlIHVubmVjZXNzYXJ5IGNvbmRpdGlvbnMgaW4gZnVuY3Rpb24K Pj4gICAgY3B1X2VtZXJnZW5jeV9jbGVhcl9sb2FkZWRfdm1jc3MgYXMgTWFyY2VsbyBzdWdnZXN0 ZWQuCj4+Cj4+IENoYW5nZWxvZyBmcm9tIHYxIHRvIHYyOgo+PiAxLiByZW1vdmUgdGhlIHN5c2N0 bCBhbmQgY2xlYXIgVk1DU3MgdW5jb25kaXRpb25hbGx5Lgo+Pgo+PiBaaGFuZyBZYW5mZWkgKDIp Ogo+PiAgIHg4Ni9rZXhlYzogYWRkIGEgbmV3IGF0b21pYyBub3RpZmllciBsaXN0IGZvciBrZHVt cAo+PiAgIEtWTS1JTlRFTDogYWRkIGEgbm90aWZpZXIgYW5kIGEgYml0bWFwIHRvIHN1cHBvcnQg Vk1DTEVBUiBpbiBrZHVtcAo+Pgo+PiAgYXJjaC94ODYvaW5jbHVkZS9hc20va2V4ZWMuaCB8ICAg IDIgKwo+PiAgYXJjaC94ODYva2VybmVsL2NyYXNoLmMgICAgICB8ICAgIDkgKysrKysKPj4gIGFy Y2gveDg2L2t2bS92bXguYyAgICAgICAgICAgfCAgIDcwICsrKysrKysrKysrKysrKysrKysrKysr KysrKysrKysrKysrKysrKysrKwo+PiAgMyBmaWxlcyBjaGFuZ2VkLCA4MSBpbnNlcnRpb25zKCsp LCAwIGRlbGV0aW9ucygtKQo+IAo+IC0tCj4gCQkJR2xlYi4KPiAKCgpfX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwprZXhlYyBtYWlsaW5nIGxpc3QKa2V4ZWNA bGlzdHMuaW5mcmFkZWFkLm9yZwpodHRwOi8vbGlzdHMuaW5mcmFkZWFkLm9yZy9tYWlsbWFuL2xp c3RpbmZvL2tleGVjCg==