From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jiang Liu Subject: Re: Panic when cpu hot-remove Date: Thu, 18 Jun 2015 13:40:13 +0800 Message-ID: <558259BD.7080402@linux.intel.com> References: <42BB8332972FC149B81C55A0D41E3A79C07469@jtjnmailbox06.home.langchao.com> <20150617115238.GC27750@8bytes.org> <1434551800.5628.5.camel@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <1434551800.5628.5.camel-H+wXaHxf7aLQT0dZR+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: 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 , =?UTF-8?B?6IyD5Yas5Yas?= List-Id: iommu@lists.linux-foundation.org T24gMjAxNS82LzE3IDIyOjM2LCBBbGV4IFdpbGxpYW1zb24gd3JvdGU6Cj4gT24gV2VkLCAyMDE1 LTA2LTE3IGF0IDEzOjUyICswMjAwLCBKb2VyZyBSb2VkZWxqb3JvIHdyb3RlOgo+PiBPbiBXZWQs IEp1biAxNywgMjAxNSBhdCAxMDo0Mjo0OUFNICswMDAwLCDojIPlhqzlhqwgd3JvdGU6Cj4+PiBI aSBtYWludGFpbmVyLAo+Pj4KPj4+IFdlIGZvdW5kIGEgcHJvYmxlbSB0aGF0IGEgcGFuaWMgaGFw cGVuIHdoZW4gY3B1IHdhcyBob3QtcmVtb3ZlZC4gV2UgYWxzbyB0cmFjZSB0aGUgcHJvYmxlbSBh Y2NvcmRpbmcgdG8gdGhlIGNhbGx0cmFjZSBpbmZvcm1hdGlvbi4KPj4+IEFuIGVuZGxlc3MgbG9v cCBoYXBwZW4gYmVjYXVzZSB2YWx1ZSBoZWFkIGlzIG5vdCBlcXVhbCB0byB2YWx1ZSB0YWlsIGZv cmV2ZXIgaW4gdGhlIGZ1bmN0aW9uIHFpX2NoZWNrX2ZhdWx0KCApLgo+Pj4gVGhlIGxvY2F0aW9u IGNvZGUgaXMgYXMgZm9sbG93czoKPj4+Cj4+Pgo+Pj4gZG8gewo+Pj4gICAgICAgICBpZiAocWkt PmRlc2Nfc3RhdHVzW2hlYWRdID09IFFJX0lOX1VTRSkKPj4+ICAgICAgICAgcWktPmRlc2Nfc3Rh dHVzW2hlYWRdID0gUUlfQUJPUlQ7Cj4+PiAgICAgICAgIGhlYWQgPSAoaGVhZCAtIDIgKyBRSV9M RU5HVEgpICUgUUlfTEVOR1RIOwo+Pj4gICAgIH0gd2hpbGUgKGhlYWQgIT0gdGFpbCk7Cj4+Cj4+ IEhtbSwgdGhpcyBjb2RlIGludGVyYXRlcyBvbmx5IG92ZXIgZXZlcnkgc2Vjb25kIFFJIGRlc2Ny aXB0b3IsIGFuZCB0YWlsCj4+IHByb2JhYmx5IHBvaW50cyB0byBhIGRlc2NyaXB0b3IgdGhhdCBp cyBub3QgaXRlcmF0ZWQgb3Zlci4KPj4KPj4gSmlhbmcsIGNhbiB5b3UgcGxlYXNlIGhhdmUgYSBs b29rPwo+IAo+IEkgdGhpbmsgdGhhdCBwYXJ0IGlzIG5vcm1hbCwgdGhlIHdheSB3ZSB1c2UgdGhl IHF1ZXVlIGlzIHRvIGFsd2F5cwo+IHN1Ym1pdCBhIHdvcmsgb3BlcmF0aW9uIGZvbGxvd2VkIGJ5 IGEgd2FpdCBvcGVyYXRpb24gc28gdGhhdCB3ZSBjYW4KPiBkZXRlcm1pbmUgdGhlIHdvcmsgb3Bl cmF0aW9uIGlzIGNvbXBsZXRlLiAgVGhhdCdzIGRvbmUgdmlhCj4gcWlfc3VibWl0X3N5bmMoKS4g IFdlIGhhdmUgaGFkIHNwdXJpb3VzIHJlcG9ydHMgb2YgdGhlIHF1ZXVlIGdldHRpbmcKPiBpbXBv c3NpYmx5IG91dCBvZiBzeW5jIHRob3VnaC4gIEkgc2F3IG9uZSB0aGF0IHdhcyBzb21laG93IGxp bmtlZCB0byB0aGUKPiBJL08gQVQgRE1BIGVuZ2luZS4gIFJvbGFuZCBEcmVpZXIgc2F3IHNvbWV0 aGluZyBzaW1pbGFyWzFdLiAgSSdtIG5vdAo+IHN1cmUgaWYgdGhleSdyZSByZWxhdGVkIHRvIHRo aXMsIGJ1dCBtYXliZSB3b3J0aCBjb21wYXJpbmcuICBUaGFua3MsClRoYW5rcywgQWxleCBhbmQg Sm9lcmchCgpIaSBEb25nZG9uZywKCUNvdWxkIHlvdSBwbGVhc2UgaGVscCB0byBnaXZlIHNvbWUg aW5zdHJ1Y3Rpb25zIGFib3V0IGhvdyB0bwpyZXByb2R1Y2UgdGhpcyBpc3N1ZT8gSSB3aWxsIHRy eSB0byByZXByb2R1Y2UgaXQgaWYgcG9zc2libGUuClRoYW5rcyEKR2VycnkKCj4gCj4gQWxleAo+ IAo+IFsxXSBodHRwOi8vbGlzdHMubGludXhmb3VuZGF0aW9uLm9yZy9waXBlcm1haWwvaW9tbXUv MjAxNS1KYW51YXJ5LzAxMTUwMi5odG1sCj4gCj4gLS0KPiBUbyB1bnN1YnNjcmliZSBmcm9tIHRo aXMgbGlzdDogc2VuZCB0aGUgbGluZSAidW5zdWJzY3JpYmUgbGludXgta2VybmVsIiBpbgo+IHRo ZSBib2R5IG9mIGEgbWVzc2FnZSB0byBtYWpvcmRvbW9Admdlci5rZXJuZWwub3JnCj4gTW9yZSBt YWpvcmRvbW8gaW5mbyBhdCAgaHR0cDovL3ZnZXIua2VybmVsLm9yZy9tYWpvcmRvbW8taW5mby5o dG1sCj4gUGxlYXNlIHJlYWQgdGhlIEZBUSBhdCAgaHR0cDovL3d3dy50dXgub3JnL2xrbWwvCj4g Cl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCmlvbW11IG1h aWxpbmcgbGlzdAppb21tdUBsaXN0cy5saW51eC1mb3VuZGF0aW9uLm9yZwpodHRwczovL2xpc3Rz LmxpbnV4Zm91bmRhdGlvbi5vcmcvbWFpbG1hbi9saXN0aW5mby9pb21tdQ==