From mboxrd@z Thu Jan 1 00:00:00 1970 From: =?UTF-8?B?Um9nZXIgUGF1IE1vbm7DqQ==?= Subject: Re: IO-APIC interrupts getting stuck Date: Wed, 17 Dec 2014 13:51:46 +0100 Message-ID: <54917C62.709@citrix.com> References: <54906D3D.2060807@citrix.com> <549072FE.40500@citrix.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mail6.bemta3.messagelabs.com ([195.245.230.39]) by lists.xen.org with esmtp (Exim 4.72) (envelope-from ) id 1Y1E51-0005MS-Pr for xen-devel@lists.xenproject.org; Wed, 17 Dec 2014 12:51:51 +0000 In-Reply-To: <549072FE.40500@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: Andrew Cooper , xen-devel Cc: Jan Beulich List-Id: xen-devel@lists.xenproject.org RWwgMTYvMTIvMTQgYSBsZXMgMTguNTksIEFuZHJldyBDb29wZXIgaGEgZXNjcml0Ogo+IE9uIDE2 LzEyLzE0IDE3OjM0LCBSb2dlciBQYXUgTW9ubsOpIHdyb3RlOgo+PiBIZWxsbywKPj4KPj4gV2hp bGUgd29ya2luZyBvbiB0aGUgRnJlZUJTRCBQVkggRG9tMCBwb3J0IEkndmUgcmVhbGl6ZWQgdGhh dCBJTy1BUElDIAo+PiBpbnRlcnJ1cHRzIGdldCBzdHVjayBpbiBhIHZlcnkgc3RyYW5nZSBzdGF0 ZSB2ZXJ5IGVhc2lseSB3aXRoIHRoZSAKPj4gY3VycmVudCBQSVJRIGltcGxlbWVudGF0aW9uIHRo YXQgSSdtIHVzaW5nIG9uIEZyZWVCU0QuCj4+Cj4+IFNpbmNlIEknbSBub3Qgc3VyZSB3aGF0IGlz IGdvaW5nIG9uLCBJIHdvdWxkIGxpa2UgdG8gYXNrIGZvciBzb21lIAo+PiBmZWVkYmFjayBhbmQg cG9zc2libGUgc29sdXRpb25zLCBiZWNhdXNlIGF0IHRoaXMgcG9pbnQgSSdtIHJ1bm5pbmcgb3V0 IAo+PiBvZiBpZGVhcyBvZiB3aGF0J3MgaGFwcGVuaW5nLgo+Pgo+PiBJbiB0aGlzIGNhc2UgSSdt IGdvaW5nIHRvIHVzZSBJUlEgMTcgYXMgYW4gZXhhbXBsZSwgd2hpY2ggaXMgc2hhcmVkIAo+PiBi ZXR3ZWVuIGFuIEludGVsKFIpIFBSTy8xMDAwIG5pYywgYSBCcm9hZGNvbSBOZXRYdHJlbWUgR2ln YWJpdCBuaWMgYW5kIAo+PiBhbiBJbnRlbCA4MjgwMUpJIChJQ0gxMCkgVVNCIGNvbnRyb2xsZXIu Cj4+Cj4+IFVzdWFsbHkgZHVyaW5nIHRoZSBib290IHByb2Nlc3MsIG9yIHZlcnkgc2hvcnRseSBh ZnRlciBpdCwgRG9tMCBsb29zZXMgCj4+IGludGVycnVwdHMgZnJvbSBJUlEgMTcsIGR1bXBpbmcg SVJRIGluZm9ybWF0aW9uIGZyb20gWGVuICgnaScga2V5KSwgCj4+IGdpdmVzIHRoZSBmb2xsb3dp bmcgb3V0cHV0Ogo+Pgo+PiAoWEVOKSAgICBJUlE6ICAxNyBhZmZpbml0eTowMDAwMDAwMSB2ZWM6 YTggdHlwZT1JTy1BUElDLWxldmVsICAgc3RhdHVzPTAwMDAwMDEwIGluLWZsaWdodD0wIGRvbWFp bi1saXN0PTA6IDE3KC0tLSksCj4+IC4uLgo+PiAoWEVOKSAgICAgSVJRIDE3IFZlYzE2ODoKPj4g KFhFTikgICAgICAgQXBpYyAweDAwLCBQaW4gMTc6IHZlYz1hOCBkZWxpdmVyeT1Mb1ByaSBkZXN0 PUwgc3RhdHVzPTEgcG9sYXJpdHk9MSBpcnI9MSB0cmlnPUwgbWFzaz0wIGRlc3RfaWQ6MQo+Pgo+ PiBJJ3ZlIGFsc28gYWRkZWQgc29tZSBldmVudCBjaGFubmVsIGRlYnVnIGZ1bmN0aW9ucyB0byB0 aGUgRnJlZUJTRCAKPj4gaW4ta2VybmVsIGRlYnVnZ2VyIGluIG9yZGVyIHRvIHByaW50IHRoZSBz dGF0dXMgb2YgZXZlbnQgY2hhbm5lbHM6Cj4+Cj4+IFBvcnQgMTUgVHlwZTogUElSUQo+PiAgICAg ICAgIFBpcnE6IDE3IEFjdGl2ZUhpOiAwIEVkZ2VUcmlnZ2VyOiAwIE5lZWRzRU9JOiAxCj4+ICAg ICAgICAgTWFza2VkOiAwIFBlbmRpbmc6IDAKPj4gICAgICAgICBQZXItQ1BVIE1hc2tzOiBjcHUj MDogMCBjcHUjMTogMCBjcHUjMjogMSBjcHUjMzogMCBjcHUjNDogMCBjcHUjNTogMCBjcHUjNjog MCBjcHUjNzogMAo+Pgo+PiBBbmQgdGhlIGNvcnJlc3BvbmRpbmcgbGluZSBmcm9tIHRoZSBYZW4g J2UnIGRlYnVnIGtleToKPj4KPj4gKFhFTikgICAgICAgMTUgWzAvMC8xXTogcz00IG49MiB4PTAg cD0xNyBpPTE3Cj4+Cj4+IFRoaXMgbWFrZXMgbWUgdGhpbmcgdGhhdCB0aGUgRnJlZUJTRCBrZXJu ZWwgaXMgZmFpbGluZyB0byBFT0kgdGhlIAo+PiB2ZWN0b3IgKGJlY2F1c2Ugb2YgdGhlIGlycj0x IGluIHRoZSBYZW4gSVJRIGRlYnVnIGluZm8pLCBzbyBJJ3ZlIGFsc28gCj4+IGFkZGVkIGEgZnVu Y3Rpb24gdG8gdGhlIGRlYnVnZ2VyIHRoYXQgYWxsb3dzIG1lIHRvIEVPSSBhIHZlY3RvciBmcm9t IAo+PiBpdC4gQnV0IGV2ZW4gYWZ0ZXIgaXNzdWluZyBhIFBIWVNERVZPUF9lb2kgaHlwZXJjYWxs IG9uIHRoZSBhZmZlY3RlZCAKPj4gUElSUSAoMTcpLCB0aGUgc3RhdHVzIGlzIGV4YWN0bHkgdGhl IHNhbWUsIGJlY2F1c2UgcGlycS0+bWFza2VkID09IDAsIAo+PiBzbyBkZXNjX2d1ZXN0X2VvaSBm YWlscyB0byBFT0kgdGhlIHZlY3RvciAoc2VlIHhlbi9hcmNoL3g4Ni9pcnEuYzoxNDMzKS4KPj4K Pj4gU28gbm93IEknbSB3b25kZXJpbmcsIGhvdyBjYW4gSSAidW5zdHVjayIgdGhpcyBJUlEsIGFu ZCBob3cgZGlkIGl0IGdldCAKPj4gaW50byB0aGlzIHN0cmFuZ2Ugc3RhdGU/Cj4+Cj4+IFJvZ2Vy Lgo+IAo+IERvIHlvdSBoYXZlIGEgeGVuIGRtZXNnIHdpdGggZnVsbCBkZWJ1Z2dpbmc/ICBBY2Nv cmRpbmcgdG8gdGhlIGZpcnN0Cj4gbGluZSBmcm9tICdpJywgWGVuIGJlbGlldmVzIHRoYXQgdGhl IGlycSBpbiBxdWVzdGlvbiBpcyBub3QgaW4gbmVlZCBvZgo+IGFuIEVPSSwgd2hpY2ggaXMgY2xl YXJseSBjb250cmFyeSB0byB0aGUgSU9BUElDcyB2aWV3IG9mIHRoZSB3b3JsZC4KPiAKPiBTb21l IHJhbmRvbSBzdWdnZXN0aW9uczogZG9lcyBhbHRlcmluZyBpbnRlcnJ1cHQgcmVtYXBwaW5nIG1h a2UgYQo+IGRpZmZlcmVuY2U/IGRvZXMgYWx0ZXJpbmcgdGhlIGlvYXBpY19hY2tfbW9kZSBtYWtl IGEgZGlmZmVyZW5jZT8KCkkndmUgYWxzbyBhZGRlZCB0aGUgZm9sbG93aW5nIHBhdGNoIHRvIFhl biwgYW5kIGl0IHJlbGlhYmx5IHRyaWdnZXJzIG9uIApGcmVlQlNELCB3aGlsZSBpdCBzZWVtcyB0 byB3b3JrIGZpbmUgb24gTGludXg6CgpkaWZmIC0tZ2l0IGEveGVuL2FyY2gveDg2L2lvX2FwaWMu YyBiL3hlbi9hcmNoL3g4Ni9pb19hcGljLmMKaW5kZXggNmY4ZjYyYy4uNzA5NzdkYyAxMDA2NDQK LS0tIGEveGVuL2FyY2gveDg2L2lvX2FwaWMuYworKysgYi94ZW4vYXJjaC94ODYvaW9fYXBpYy5j CkBAIC0xNzI5LDYgKzE3MjksOCBAQCBzdGF0aWMgdm9pZCBlbmRfbGV2ZWxfaW9hcGljX2lycV9u ZXcoc3RydWN0IGlycV9kZXNjICpkZXNjLCB1OCB2ZWN0b3IpCiAgKiBUaGUgaWRlYSBpcyBmcm9t IE1hbmZyZWQgU3ByYXVsLiAgLS1tYWNybwogICovCiAgICAgdW5zaWduZWQgaW50IHYsIGkgPSBk ZXNjLT5hcmNoLnZlY3RvcjsKKyAgICBzdHJ1Y3QgSU9fQVBJQ19yb3V0ZV9lbnRyeSBydGU7Cisg ICAgc3RydWN0IGlycV9waW5fbGlzdCAqZW50cnkgPSBpcnFfMl9waW4gKyBkZXNjLT5pcnE7CiAK ICAgICAvKiBNYW51YWxseSBFT0kgdGhlIG9sZCB2ZWN0b3IgaWYgd2UgYXJlIG1vdmluZyB0byB0 aGUgbmV3ICovCiAgICAgaWYgKCB2ZWN0b3IgJiYgaSAhPSB2ZWN0b3IgKQpAQCAtMTc1MSw2ICsx NzUzLDkgQEAgc3RhdGljIHZvaWQgZW5kX2xldmVsX2lvYXBpY19pcnFfbmV3KHN0cnVjdCBpcnFf ZGVzYyAqZGVzYywgdTggdmVjdG9yKQogICAgICAgICAgICAgX191bm1hc2tfSU9fQVBJQ19pcnEo ZGVzYy0+aXJxKTsKICAgICAgICAgc3Bpbl91bmxvY2soJmlvYXBpY19sb2NrKTsKICAgICB9CisK KyAgICBydGUgPSBpb2FwaWNfcmVhZF9lbnRyeShlbnRyeS0+YXBpYywgZW50cnktPnBpbiwgMCk7 CisgICAgQVNTRVJUKHJ0ZS5pcnIgPT0gMCB8fCBydGUubWFzayAhPSAwKTsKIH0KIAogLyoKCgoK X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KWGVuLWRldmVs IG1haWxpbmcgbGlzdApYZW4tZGV2ZWxAbGlzdHMueGVuLm9yZwpodHRwOi8vbGlzdHMueGVuLm9y Zy94ZW4tZGV2ZWwK