From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jiang Liu Subject: Re: Panic when cpu hot-remove Date: Thu, 25 Jun 2015 16:11:36 +0800 Message-ID: <558BB7B8.7000402@linux.intel.com> References: <42BB8332972FC149B81C55A0D41E3A79C07469@jtjnmailbox06.home.langchao.com> <20150617115238.GC27750@8bytes.org> <1434551800.5628.5.camel@redhat.com> <558259BD.7080402@linux.intel.com> <558272E3.4000504@inspur.com> <55827927.4080504@inspur.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <55827927.4080504-6gUaA8visnnQT0dZR+AlfA@public.gmane.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: iommu-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org Errors-To: iommu-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org To: fandongdong , Alex Williamson , Joerg Roedeljoro Cc: Roland Dreier , =?UTF-8?B?6Zer5pmT5bOw?= , "jiang.liu-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org" , linux-kernel , =?UTF-8?B?5YiY6ZW/55Sf?= , iommu List-Id: iommu@lists.linux-foundation.org T24gMjAxNS82LzE4IDE1OjU0LCBmYW5kb25nZG9uZyB3cm90ZToKPiAKPiAKPiDlnKggMjAxNS82 LzE4IDE1OjI3LCBmYW5kb25nZG9uZyDlhpnpgZM6Cj4+Cj4+Cj4+IOWcqCAyMDE1LzYvMTggMTM6 NDAsIEppYW5nIExpdSDlhpnpgZM6Cj4+PiBPbiAyMDE1LzYvMTcgMjI6MzYsIEFsZXggV2lsbGlh bXNvbiB3cm90ZToKPj4+PiBPbiBXZWQsIDIwMTUtMDYtMTcgYXQgMTM6NTIgKzAyMDAsIEpvZXJn IFJvZWRlbGpvcm8gd3JvdGU6Cj4+Pj4+IE9uIFdlZCwgSnVuIDE3LCAyMDE1IGF0IDEwOjQyOjQ5 QU0gKzAwMDAsIOiMg+WGrOWGrCB3cm90ZToKPj4+Pj4+IEhpIG1haW50YWluZXIsCj4+Pj4+Pgo+ Pj4+Pj4gV2UgZm91bmQgYSBwcm9ibGVtIHRoYXQgYSBwYW5pYyBoYXBwZW4gd2hlbiBjcHUgd2Fz IGhvdC1yZW1vdmVkLgo+Pj4+Pj4gV2UgYWxzbyB0cmFjZSB0aGUgcHJvYmxlbSBhY2NvcmRpbmcg dG8gdGhlIGNhbGx0cmFjZSBpbmZvcm1hdGlvbi4KPj4+Pj4+IEFuIGVuZGxlc3MgbG9vcCBoYXBw ZW4gYmVjYXVzZSB2YWx1ZSBoZWFkIGlzIG5vdCBlcXVhbCB0byB2YWx1ZQo+Pj4+Pj4gdGFpbCBm b3JldmVyIGluIHRoZSBmdW5jdGlvbiBxaV9jaGVja19mYXVsdCggKS4KPj4+Pj4+IFRoZSBsb2Nh dGlvbiBjb2RlIGlzIGFzIGZvbGxvd3M6Cj4+Pj4+Pgo+Pj4+Pj4KPj4+Pj4+IGRvIHsKPj4+Pj4+ ICAgICAgICAgIGlmIChxaS0+ZGVzY19zdGF0dXNbaGVhZF0gPT0gUUlfSU5fVVNFKQo+Pj4+Pj4g ICAgICAgICAgcWktPmRlc2Nfc3RhdHVzW2hlYWRdID0gUUlfQUJPUlQ7Cj4+Pj4+PiAgICAgICAg ICBoZWFkID0gKGhlYWQgLSAyICsgUUlfTEVOR1RIKSAlIFFJX0xFTkdUSDsKPj4+Pj4+ICAgICAg fSB3aGlsZSAoaGVhZCAhPSB0YWlsKTsKPj4+Pj4gSG1tLCB0aGlzIGNvZGUgaW50ZXJhdGVzIG9u bHkgb3ZlciBldmVyeSBzZWNvbmQgUUkgZGVzY3JpcHRvciwgYW5kCj4+Pj4+IHRhaWwKPj4+Pj4g cHJvYmFibHkgcG9pbnRzIHRvIGEgZGVzY3JpcHRvciB0aGF0IGlzIG5vdCBpdGVyYXRlZCBvdmVy Lgo+Pj4+Pgo+Pj4+PiBKaWFuZywgY2FuIHlvdSBwbGVhc2UgaGF2ZSBhIGxvb2s/Cj4+Pj4gSSB0 aGluayB0aGF0IHBhcnQgaXMgbm9ybWFsLCB0aGUgd2F5IHdlIHVzZSB0aGUgcXVldWUgaXMgdG8g YWx3YXlzCj4+Pj4gc3VibWl0IGEgd29yayBvcGVyYXRpb24gZm9sbG93ZWQgYnkgYSB3YWl0IG9w ZXJhdGlvbiBzbyB0aGF0IHdlIGNhbgo+Pj4+IGRldGVybWluZSB0aGUgd29yayBvcGVyYXRpb24g aXMgY29tcGxldGUuICBUaGF0J3MgZG9uZSB2aWEKPj4+PiBxaV9zdWJtaXRfc3luYygpLiAgV2Ug aGF2ZSBoYWQgc3B1cmlvdXMgcmVwb3J0cyBvZiB0aGUgcXVldWUgZ2V0dGluZwo+Pj4+IGltcG9z c2libHkgb3V0IG9mIHN5bmMgdGhvdWdoLiAgSSBzYXcgb25lIHRoYXQgd2FzIHNvbWVob3cgbGlu a2VkIHRvCj4+Pj4gdGhlCj4+Pj4gSS9PIEFUIERNQSBlbmdpbmUuICBSb2xhbmQgRHJlaWVyIHNh dyBzb21ldGhpbmcgc2ltaWxhclsxXS4gSSdtIG5vdAo+Pj4+IHN1cmUgaWYgdGhleSdyZSByZWxh dGVkIHRvIHRoaXMsIGJ1dCBtYXliZSB3b3J0aCBjb21wYXJpbmcuIFRoYW5rcywKPj4+IFRoYW5r cywgQWxleCBhbmQgSm9lcmchCj4+Pgo+Pj4gSGkgRG9uZ2RvbmcsCj4+PiAgICAgQ291bGQgeW91 IHBsZWFzZSBoZWxwIHRvIGdpdmUgc29tZSBpbnN0cnVjdGlvbnMgYWJvdXQgaG93IHRvCj4+PiBy ZXByb2R1Y2UgdGhpcyBpc3N1ZT8gSSB3aWxsIHRyeSB0byByZXByb2R1Y2UgaXQgaWYgcG9zc2li bGUuCj4+PiBUaGFua3MhCj4+PiBHZXJyeQo+PiBIaSBHZXJyeSwKPj4KPj4gV2UncmUgcnVubmlu ZyBrZXJuZWwgNC4xLjAgb24gYSA0LXNvY2tldCBzeXN0ZW0gYW5kICB3ZSB3YW50IHRvCj4+IG9m ZmxpbmUgc29ja2V0IDEuCj4+IFN0ZXBzIGFzIGZvbGxvd3M6Cj4+Cj4+IGVjaG8gMSA+IC9zeXMv ZmlybXdhcmUvYWNwaS9ob3RwbHVnL2ZvcmNlX3JlbW92ZQo+PiBlY2hvIDEgPiAvc3lzL2Rldmlj ZXMvTE5YU1lTVE06MDAvTE5YU1lCVVM6MDAvQUNQSTAwMDQ6MDEvZWplY3QKSGkgRG9uZ2Rvbmcs CglJIGZhaWxlZCB0byByZXByb2R1Y2UgdGhpcyBpc3N1ZSBvbiBteSBzaWRlLiBTb21lIHBsZWFz ZSBoZWxwCnRvIGNvbmZpcm0/CjEpIElzIHRoaXMgaXNzdWUgcmVwcm9kdWNpYmxlIG9uIHlvdXIg c2lkZT8KMikgRG9lcyB0aGlzIGlzc3VlIGhhcHBlbiBpZiB5b3UgZGlzYWJsZSBpcnFiYWxhbmNl IHNlcnZpY2Ugb24geW91CiAgIHN5c3RlbT8KMykgSGFzIHRoZSBjb3JyZXNwb25kaW5nIFBDSSBo b3N0IGJyaWRnZSBiZWVuIHJlbW92ZWQgYmVmb3JlIHJlbW92aW5nCiAgIHRoZSBzb2NrZXQ/CgpG cm9tIHRoZSBsb2cgbWVzc2FnZSwgd2Ugb25seSBub3RpY2VkIGxvZyBtZXNzYWdlcyBmb3IgQ1BV IGFuZCBtZW1vcnksCmJ1dCBub3QgbWVzc2FnZXMgZm9yIFBDSSAoSU9NTVUpIGRldmljZXMuIEFu ZCB0aGlzIGxvZyBtZXNzYWdlCgkiWyAxNDkuOTc2NDkzXSBhY3BpIEFDUEkwMDA0OjAxOiBTdGls bCBub3QgcHJlc2VudCIKaW1wbGllcyB0aGF0IHRoZSBzb2NrZXQgaGFzIGJlZW4gcG93ZXJlZCBv ZmYgZHVyaW5nIHRoZSBlamVjdGlvbi4KU28gdGhlIHN0b3J5IG1heSBiZSB0aGF0IHlvdSBwb3dl cmVkIG9mZiB0aGUgc29ja2V0IHdoaWxlIHRoZSBob3N0CmJyaWRnZSBvbiB0aGUgc29ja2V0IGlz IHN0aWxsIGluIHVzZS4KVGhhbmtzIQpHZXJyeQoKX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX18KaW9tbXUgbWFpbGluZyBsaXN0CmlvbW11QGxpc3RzLmxpbnV4 LWZvdW5kYXRpb24ub3JnCmh0dHBzOi8vbGlzdHMubGludXhmb3VuZGF0aW9uLm9yZy9tYWlsbWFu L2xpc3RpbmZvL2lvbW11