From mboxrd@z Thu Jan 1 00:00:00 1970 From: Boris Ostrovsky Subject: Re: VPMU interrupt unreliability Date: Wed, 11 Oct 2017 10:09:20 -0400 Message-ID: References: <23dd26f5-d217-dc99-6e3c-02ff46bf2f7a@oracle.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" To: Kyle Huey Cc: "Tian, Kevin" , Andrew Cooper , Dietmar Hahn , xen-devel@lists.xen.org, Jun Nakajima , Robert O'Callahan List-Id: xen-devel@lists.xenproject.org T24gMTAvMTAvMjAxNyAxMjo1NCBQTSwgS3lsZSBIdWV5IHdyb3RlOgo+IE9uIE1vbiwgSnVsIDI0 LCAyMDE3IGF0IDk6NTQgQU0sIEt5bGUgSHVleSA8bWVAa3lsZWh1ZXkuY29tPiB3cm90ZToKPj4g T24gTW9uLCBKdWwgMjQsIDIwMTcgYXQgODowNyBBTSwgQm9yaXMgT3N0cm92c2t5Cj4+IDxib3Jp cy5vc3Ryb3Zza3lAb3JhY2xlLmNvbT4gd3JvdGU6Cj4+Pj4+IE9uZSB0aGluZyBJIG5vdGljZWQg aXMgdGhhdCB0aGUgd29ya2Fyb3VuZCBkb2Vzbid0IGFwcGVhciB0byBiZQo+Pj4+PiBjb21wbGV0 ZTogaXQgaXMgb25seSBjaGVja2luZyBQTUMwIHN0YXR1cyBhbmQgbm90IG90aGVyIGNvdW50ZXJz IChmaXhlZAo+Pj4+PiBvciBhcmNoaXRlY3R1cmFsKS4gT2YgY291cnNlLCB3aXRob3V0IGtub3dp bmcgd2hhdCB0aGUgYWN0dWFsIHByb2JsZW0KPj4+Pj4gd2FzIGl0J3MgaGFyZCB0byBzYXkgd2hl dGhlciB0aGlzIHdhcyBpbnRlbnRpb25hbC4KPj4+PiBoYW5kbGVfcG1jX3F1aXJrIGFwcGVhcnMg dG8gbG9vcCB0aHJvdWdoIGFsbCB0aGUgY291bnRlcnMgLi4uCj4+PiBSaWdodCwgSSBkaWRuJ3Qg bm90aWNlIHRoYXQgaXQgaXMgc2hpZnRpbmcgTVNSX0NPUkVfUEVSRl9HTE9CQUxfU1RBVFVTCj4+ PiB2YWx1ZSBvbmUgYnkgb25lIGFuZCBzbyBpdCBpcyBsb29raW5nIGF0IGFsbCBiaXRzLgo+Pj4K Pj4+Pj4+IDIuIEludGVyY2VwdGluZyBNU1IgbG9hZHMgZm9yIGNvdW50ZXJzIHRoYXQgaGF2ZSB0 aGUgd29ya2Fyb3VuZAo+Pj4+Pj4gYXBwbGllZCBhbmQgZ2l2aW5nIHRoZSBndWVzdCB0aGUgY29y cmVjdCBjb3VudGVyIHZhbHVlLgo+Pj4+PiBXZSdkIGhhdmUgdG8ga2VlcCB0cmFjayBvZiB3aGV0 aGVyIHRoZSBjb3VudGVyIGhhcyBiZWVuIHJlc2V0IChieSB0aGUKPj4+Pj4gcXVpcmspIHNpbmNl IHRoZSBsYXN0IE1TUiB3cml0ZS4KPj4+PiBZZXMuCj4+Pj4KPj4+Pj4+IDMuIE9yIHBlcmhhcHMg ZXZlbiBjaGFuZ2luZyB0aGUgd29ya2Fyb3VuZCB0byBkaXNhYmxlIHRoZSBQTUkgb24gdGhhdAo+ Pj4+Pj4gY291bnRlciB1bnRpbCB0aGUgZ3Vlc3QgYWNrcyB2aWEgR0xPQkFMX09WRl9DVFJMLCBh c3N1bWluZyB0aGF0IHdvcmtzCj4+Pj4+PiBvbiB0aGUgcmVsZXZhbnQgaGFyZHdhcmUuCj4+Pj4+ IE1TUl9DT1JFX1BFUkZfR0xPQkFMX09WRl9DVFJMIGlzIHdyaXR0ZW4gaW1tZWRpYXRlbHkgYWZ0 ZXIgdGhlIHF1aXJrCj4+Pj4+IHJ1bnMgKGluIGNvcmUyX3ZwbXVfZG9faW50ZXJydXB0KCkpIHNv IHdlIGFscmVhZHkgZG8gdGhpcywgZG9uJ3Qgd2U/Cj4+Pj4gSSdtIHN1Z2dlc3Rpbmcgd2FpdGlu ZyB1bnRpbCB0aGUgKmd1ZXN0KiB3cml0ZXMgdG8gdGhlICh2aXJ0dWFsaXplZCkKPj4+PiBHTE9C QUxfT1ZGX0NUUkwuCj4+PiBXb3VsZG4ndCBpdCBiZSBiZXR0ZXIgdG8gd2FpdCB1bnRpbCB0aGUg Y291bnRlciBpcyByZWxvYWRlZD8KPj4gTWF5YmUhICBJIGhhdmVuJ3QgdGhvdWdodCB0aHJvdWdo IGl0IGEgbG90LiAgSXQncyBzdGlsbCBub3QgY2xlYXIgdG8KPj4gbWUgd2hldGhlciBNU1JfQ09S RV9QRVJGX0dMT0JBTF9PVkZfQ1RSTCBhY3R1YWxseSBjb250cm9scyB0aGUKPj4gaW50ZXJydXB0 IGluIGFueSB3YXkgb3Igd2hldGhlciBpdCBqdXN0IHJlc2V0cyB0aGUgYml0cyBpbgo+PiBNU1Jf Q09SRV9QRVJGX0dMT0JBTF9TVEFUVVMgYW5kIGFja2luZyB0aGUgaW50ZXJydXB0IG9uIHRoZSBB UElDIGlzCj4+IGFsbCB0aGF0J3MgcmVxdWlyZWQgdG8gcmVlbmFibGUgaXQuCj4+Cj4+IC0gS3ls ZQo+IEkgd29uZGVyIGlmIGl0IHdvdWxkIGJlIHJlYXNvbmFibGUgdG8ganVzdCByZW1vdmUgdGhl IHdvcmthcm91bmQKPiBlbnRpcmVseSBhdCBzb21lIHBvaW50LiAgVGhlIHNldCBvZiBwZW9wbGUg dXNpbmcgMSkgc2V2ZXJhbCB5ZWFyIG9sZAo+IGhhcmR3YXJlLCAyKSBhbiB1cCB0byBkYXRlIFhl biwgYW5kIDMpIHRoZSBvZmYtYnktZGVmYXVsdCBwZXJmb3JtYW5jZQo+IGNvdW50ZXJzIGlzIHBy b2JhYmx5IHJhdGhlciBzbWFsbC4KCldlJ2QgcHJvYmFibHkgd2FudCB0byBvbmx5IGVuYWJsZSB0 aGlzIGZvciBhZmZlY3RlZCBwcm9jZXNzb3JzLCBub3QKcmVtb3ZlIGl0IG91dHJpZ2h0LiBCdXQg dGhlIHByb2JsZW0gaXMgdGhhdCB3ZSBzdGlsbCBkb24ndCBrbm93IGZvciBzdXJlCndoZXRoZXIg dGhpcyBpc3N1ZSBhZmZlY3RzIE5ITSBvbmx5LCBkbyB3ZT8KCihodHRwczovL2xpc3RzLnhlbnBy b2plY3Qub3JnL2FyY2hpdmVzL2h0bWwveGVuLWRldmVsLzIwMTctMDcvbXNnMDIyNDIuaHRtbApp cyB0aGUgb3JpZ2luYWwgbWVzc2FnZSkKCgotYm9yaXMKCgpfX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fXwpYZW4tZGV2ZWwgbWFpbGluZyBsaXN0Clhlbi1kZXZl bEBsaXN0cy54ZW4ub3JnCmh0dHBzOi8vbGlzdHMueGVuLm9yZy94ZW4tZGV2ZWwK