From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andrew Cooper Subject: Re: IO-APIC interrupts getting stuck Date: Tue, 16 Dec 2014 17:59:26 +0000 Message-ID: <549072FE.40500@citrix.com> References: <54906D3D.2060807@citrix.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mail6.bemta14.messagelabs.com ([193.109.254.103]) by lists.xen.org with esmtp (Exim 4.72) (envelope-from ) id 1Y0wWF-0001jP-Ou for xen-devel@lists.xenproject.org; Tue, 16 Dec 2014 18:06:47 +0000 In-Reply-To: <54906D3D.2060807@citrix.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: =?UTF-8?B?Um9nZXIgUGF1IE1vbm7DqQ==?= , xen-devel Cc: Jan Beulich List-Id: xen-devel@lists.xenproject.org T24gMTYvMTIvMTQgMTc6MzQsIFJvZ2VyIFBhdSBNb25uw6kgd3JvdGU6Cj4gSGVsbG8sCj4KPiBX aGlsZSB3b3JraW5nIG9uIHRoZSBGcmVlQlNEIFBWSCBEb20wIHBvcnQgSSd2ZSByZWFsaXplZCB0 aGF0IElPLUFQSUMgCj4gaW50ZXJydXB0cyBnZXQgc3R1Y2sgaW4gYSB2ZXJ5IHN0cmFuZ2Ugc3Rh dGUgdmVyeSBlYXNpbHkgd2l0aCB0aGUgCj4gY3VycmVudCBQSVJRIGltcGxlbWVudGF0aW9uIHRo YXQgSSdtIHVzaW5nIG9uIEZyZWVCU0QuCj4KPiBTaW5jZSBJJ20gbm90IHN1cmUgd2hhdCBpcyBn b2luZyBvbiwgSSB3b3VsZCBsaWtlIHRvIGFzayBmb3Igc29tZSAKPiBmZWVkYmFjayBhbmQgcG9z c2libGUgc29sdXRpb25zLCBiZWNhdXNlIGF0IHRoaXMgcG9pbnQgSSdtIHJ1bm5pbmcgb3V0IAo+ IG9mIGlkZWFzIG9mIHdoYXQncyBoYXBwZW5pbmcuCj4KPiBJbiB0aGlzIGNhc2UgSSdtIGdvaW5n IHRvIHVzZSBJUlEgMTcgYXMgYW4gZXhhbXBsZSwgd2hpY2ggaXMgc2hhcmVkIAo+IGJldHdlZW4g YW4gSW50ZWwoUikgUFJPLzEwMDAgbmljLCBhIEJyb2FkY29tIE5ldFh0cmVtZSBHaWdhYml0IG5p YyBhbmQgCj4gYW4gSW50ZWwgODI4MDFKSSAoSUNIMTApIFVTQiBjb250cm9sbGVyLgo+Cj4gVXN1 YWxseSBkdXJpbmcgdGhlIGJvb3QgcHJvY2Vzcywgb3IgdmVyeSBzaG9ydGx5IGFmdGVyIGl0LCBE b20wIGxvb3NlcyAKPiBpbnRlcnJ1cHRzIGZyb20gSVJRIDE3LCBkdW1waW5nIElSUSBpbmZvcm1h dGlvbiBmcm9tIFhlbiAoJ2knIGtleSksIAo+IGdpdmVzIHRoZSBmb2xsb3dpbmcgb3V0cHV0Ogo+ Cj4gKFhFTikgICAgSVJROiAgMTcgYWZmaW5pdHk6MDAwMDAwMDEgdmVjOmE4IHR5cGU9SU8tQVBJ Qy1sZXZlbCAgIHN0YXR1cz0wMDAwMDAxMCBpbi1mbGlnaHQ9MCBkb21haW4tbGlzdD0wOiAxNygt LS0pLAo+IC4uLgo+IChYRU4pICAgICBJUlEgMTcgVmVjMTY4Ogo+IChYRU4pICAgICAgIEFwaWMg MHgwMCwgUGluIDE3OiB2ZWM9YTggZGVsaXZlcnk9TG9QcmkgZGVzdD1MIHN0YXR1cz0xIHBvbGFy aXR5PTEgaXJyPTEgdHJpZz1MIG1hc2s9MCBkZXN0X2lkOjEKPgo+IEkndmUgYWxzbyBhZGRlZCBz b21lIGV2ZW50IGNoYW5uZWwgZGVidWcgZnVuY3Rpb25zIHRvIHRoZSBGcmVlQlNEIAo+IGluLWtl cm5lbCBkZWJ1Z2dlciBpbiBvcmRlciB0byBwcmludCB0aGUgc3RhdHVzIG9mIGV2ZW50IGNoYW5u ZWxzOgo+Cj4gUG9ydCAxNSBUeXBlOiBQSVJRCj4gICAgICAgICBQaXJxOiAxNyBBY3RpdmVIaTog MCBFZGdlVHJpZ2dlcjogMCBOZWVkc0VPSTogMQo+ICAgICAgICAgTWFza2VkOiAwIFBlbmRpbmc6 IDAKPiAgICAgICAgIFBlci1DUFUgTWFza3M6IGNwdSMwOiAwIGNwdSMxOiAwIGNwdSMyOiAxIGNw dSMzOiAwIGNwdSM0OiAwIGNwdSM1OiAwIGNwdSM2OiAwIGNwdSM3OiAwCj4KPiBBbmQgdGhlIGNv cnJlc3BvbmRpbmcgbGluZSBmcm9tIHRoZSBYZW4gJ2UnIGRlYnVnIGtleToKPgo+IChYRU4pICAg ICAgIDE1IFswLzAvMV06IHM9NCBuPTIgeD0wIHA9MTcgaT0xNwo+Cj4gVGhpcyBtYWtlcyBtZSB0 aGluZyB0aGF0IHRoZSBGcmVlQlNEIGtlcm5lbCBpcyBmYWlsaW5nIHRvIEVPSSB0aGUgCj4gdmVj dG9yIChiZWNhdXNlIG9mIHRoZSBpcnI9MSBpbiB0aGUgWGVuIElSUSBkZWJ1ZyBpbmZvKSwgc28g SSd2ZSBhbHNvIAo+IGFkZGVkIGEgZnVuY3Rpb24gdG8gdGhlIGRlYnVnZ2VyIHRoYXQgYWxsb3dz IG1lIHRvIEVPSSBhIHZlY3RvciBmcm9tIAo+IGl0LiBCdXQgZXZlbiBhZnRlciBpc3N1aW5nIGEg UEhZU0RFVk9QX2VvaSBoeXBlcmNhbGwgb24gdGhlIGFmZmVjdGVkIAo+IFBJUlEgKDE3KSwgdGhl IHN0YXR1cyBpcyBleGFjdGx5IHRoZSBzYW1lLCBiZWNhdXNlIHBpcnEtPm1hc2tlZCA9PSAwLCAK PiBzbyBkZXNjX2d1ZXN0X2VvaSBmYWlscyB0byBFT0kgdGhlIHZlY3RvciAoc2VlIHhlbi9hcmNo L3g4Ni9pcnEuYzoxNDMzKS4KPgo+IFNvIG5vdyBJJ20gd29uZGVyaW5nLCBob3cgY2FuIEkgInVu c3R1Y2siIHRoaXMgSVJRLCBhbmQgaG93IGRpZCBpdCBnZXQgCj4gaW50byB0aGlzIHN0cmFuZ2Ug c3RhdGU/Cj4KPiBSb2dlci4KCkRvIHlvdSBoYXZlIGEgeGVuIGRtZXNnIHdpdGggZnVsbCBkZWJ1 Z2dpbmc/ICBBY2NvcmRpbmcgdG8gdGhlIGZpcnN0CmxpbmUgZnJvbSAnaScsIFhlbiBiZWxpZXZl cyB0aGF0IHRoZSBpcnEgaW4gcXVlc3Rpb24gaXMgbm90IGluIG5lZWQgb2YKYW4gRU9JLCB3aGlj aCBpcyBjbGVhcmx5IGNvbnRyYXJ5IHRvIHRoZSBJT0FQSUNzIHZpZXcgb2YgdGhlIHdvcmxkLgoK U29tZSByYW5kb20gc3VnZ2VzdGlvbnM6IGRvZXMgYWx0ZXJpbmcgaW50ZXJydXB0IHJlbWFwcGlu ZyBtYWtlIGEKZGlmZmVyZW5jZT8gZG9lcyBhbHRlcmluZyB0aGUgaW9hcGljX2Fja19tb2RlIG1h a2UgYSBkaWZmZXJlbmNlPwoKfkFuZHJldwoKCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fClhlbi1kZXZlbCBtYWlsaW5nIGxpc3QKWGVuLWRldmVsQGxpc3Rz Lnhlbi5vcmcKaHR0cDovL2xpc3RzLnhlbi5vcmcveGVuLWRldmVsCg==