From mboxrd@z Thu Jan 1 00:00:00 1970 From: George Dunlap Subject: Re: [PATCH 2/2] xen: sched: we never get into context_switch() with prev==next Date: Tue, 23 Apr 2019 09:50:21 +0000 Message-ID: <38C4FE16-299B-4726-9BC2-9AC99D6D1F59@citrix.com> References: <155577364571.25746.11988517450711182732.stgit@wayrath> <155577388740.25746.3780283868034526234.stgit@wayrath> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from all-amaz-eas1.inumbo.com ([34.197.232.57] helo=us1-amaz-eas2.inumbo.com) by lists.xenproject.org with esmtp (Exim 4.89) (envelope-from ) id 1hIs4H-0002Ik-Cb for xen-devel@lists.xenproject.org; Tue, 23 Apr 2019 09:50:25 +0000 In-Reply-To: <155577388740.25746.3780283868034526234.stgit@wayrath> Content-Language: en-US Content-ID: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" To: Dario Faggioli Cc: Juergen Gross , Stefano Stabellini , Wei Liu , Andrew Cooper , Julien Grall , Jan Beulich , Xen-devel , Roger Pau Monne List-Id: xen-devel@lists.xenproject.org DQoNCj4gT24gQXByIDIwLCAyMDE5LCBhdCA0OjI0IFBNLCBEYXJpbyBGYWdnaW9saSA8ZGZhZ2dp b2xpQHN1c2UuY29tPiB3cm90ZToNCj4gDQo+IEluIHNjaGVkdWxlKCksIGlmIHdlIHBpY2ssIGFz IHRoZSBuZXh0IHZjcHUgdG8gcnVuIChuZXh0KSB0aGUgc2FtZSBvbmUNCj4gdGhhdCBpcyBydW5u aW5nIGFscmVhZHkgKHByZXYpLCB3ZSBuZXZlciBnZXQgdG8gY2FsbCBjb250ZXh0X3N3aXRjaCgp Lg0KPiANCj4gV2UgY2FuLCB0aGVyZWZvcmUsIGdldCByaWQgb2YgYWxsIHRoZSBgaWZgLXMgdGVz dGluZyBwcmV2IGFuZCBuZXh0IGJlaW5nDQo+IGRpZmZlcmVudCwgdHJhZGluZyB0aGVtIHdpdGgg YW4gQVNTRVJUKCkgKG9uIEFSTSwgdGhlIEFTU0VSVCgpIHdhcyBldmVuDQo+IGFscmVhZHkgdGhl cmUhKQ0KDQpLZWVwaW5nIGluIG1pbmQgdGhhdCBBU1NFUlQoKSBpcyBtZXJlbHkgYSBkZWJ1Z2dp bmcgYWlkOiBzdXBwb3NlIHRoYXQgdGVzdGluZyBkaWRu4oCZdCBkaXNjb3ZlciB0aGlzLCBhbmQg YSBidWcgdGhhdCB2aW9sYXRlZCB0aGlzIGFzc3VtcHRpb24gc2xpcHBlZCBpbnRvIHByb2R1Y3Rp b24uICBXb3VsZCB0aGUgcGF0Y2hlZCBjb2RlIERUUlQ/DQoNCkl0IHNvcnQgb2YgbG9va3MgbGlr ZSB0aGUgcHJldi9uZXh0IGNoZWNraW5nIGlzIGFuIG9wdGltaXphdGlvbiwgYW5kIHRoYXQgZHVw bGljYXRlIGNoZWNraW5nIHNob3VsZG7igJl0IGNhdXNlIGFueSBwcm9ibGVtcy4gIElzIHRoYXQg dGhlIGNhc2U/DQoNCiAtR2VvcmdlDQoNCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fClhlbi1kZXZlbCBtYWlsaW5nIGxpc3QKWGVuLWRldmVsQGxpc3RzLnhl bnByb2plY3Qub3JnCmh0dHBzOi8vbGlzdHMueGVucHJvamVjdC5vcmcvbWFpbG1hbi9saXN0aW5m by94ZW4tZGV2ZWw= From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-1.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9C47FC10F14 for ; 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Tue, 23 Apr 2019 09:50:22 +0000 (UTC) X-IronPort-AV: E=Sophos;i="5.60,385,1549929600"; d="scan'208";a="89162917" From: George Dunlap To: Dario Faggioli Thread-Topic: [PATCH 2/2] xen: sched: we never get into context_switch() with prev==next Thread-Index: AQHU9400lr2/WwibokabK+s4dKGZWqZJY0sA Date: Tue, 23 Apr 2019 09:50:21 +0000 Message-ID: <38C4FE16-299B-4726-9BC2-9AC99D6D1F59@citrix.com> References: <155577364571.25746.11988517450711182732.stgit@wayrath> <155577388740.25746.3780283868034526234.stgit@wayrath> In-Reply-To: <155577388740.25746.3780283868034526234.stgit@wayrath> Accept-Language: en-GB, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-mailer: Apple Mail (2.3445.104.8) x-ms-exchange-messagesentrepresentingtype: 1 x-ms-exchange-transport-fromentityheader: Hosted Content-ID: MIME-Version: 1.0 Subject: Re: [Xen-devel] [PATCH 2/2] xen: sched: we never get into context_switch() with prev==next X-BeenThere: xen-devel@lists.xenproject.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Cc: Juergen Gross , Stefano Stabellini , Wei Liu , Andrew Cooper , Julien Grall , Jan Beulich , Xen-devel , Roger Pau Monne Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: base64 Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" Message-ID: <20190423095021.PLtmEEe5LeqcJoa_492IMgmgUgmeE9flc9ngwbee0pU@z> DQoNCj4gT24gQXByIDIwLCAyMDE5LCBhdCA0OjI0IFBNLCBEYXJpbyBGYWdnaW9saSA8ZGZhZ2dp b2xpQHN1c2UuY29tPiB3cm90ZToNCj4gDQo+IEluIHNjaGVkdWxlKCksIGlmIHdlIHBpY2ssIGFz IHRoZSBuZXh0IHZjcHUgdG8gcnVuIChuZXh0KSB0aGUgc2FtZSBvbmUNCj4gdGhhdCBpcyBydW5u aW5nIGFscmVhZHkgKHByZXYpLCB3ZSBuZXZlciBnZXQgdG8gY2FsbCBjb250ZXh0X3N3aXRjaCgp Lg0KPiANCj4gV2UgY2FuLCB0aGVyZWZvcmUsIGdldCByaWQgb2YgYWxsIHRoZSBgaWZgLXMgdGVz dGluZyBwcmV2IGFuZCBuZXh0IGJlaW5nDQo+IGRpZmZlcmVudCwgdHJhZGluZyB0aGVtIHdpdGgg YW4gQVNTRVJUKCkgKG9uIEFSTSwgdGhlIEFTU0VSVCgpIHdhcyBldmVuDQo+IGFscmVhZHkgdGhl cmUhKQ0KDQpLZWVwaW5nIGluIG1pbmQgdGhhdCBBU1NFUlQoKSBpcyBtZXJlbHkgYSBkZWJ1Z2dp bmcgYWlkOiBzdXBwb3NlIHRoYXQgdGVzdGluZyBkaWRu4oCZdCBkaXNjb3ZlciB0aGlzLCBhbmQg YSBidWcgdGhhdCB2aW9sYXRlZCB0aGlzIGFzc3VtcHRpb24gc2xpcHBlZCBpbnRvIHByb2R1Y3Rp b24uICBXb3VsZCB0aGUgcGF0Y2hlZCBjb2RlIERUUlQ/DQoNCkl0IHNvcnQgb2YgbG9va3MgbGlr ZSB0aGUgcHJldi9uZXh0IGNoZWNraW5nIGlzIGFuIG9wdGltaXphdGlvbiwgYW5kIHRoYXQgZHVw bGljYXRlIGNoZWNraW5nIHNob3VsZG7igJl0IGNhdXNlIGFueSBwcm9ibGVtcy4gIElzIHRoYXQg dGhlIGNhc2U/DQoNCiAtR2VvcmdlDQoNCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fClhlbi1kZXZlbCBtYWlsaW5nIGxpc3QKWGVuLWRldmVsQGxpc3RzLnhl bnByb2plY3Qub3JnCmh0dHBzOi8vbGlzdHMueGVucHJvamVjdC5vcmcvbWFpbG1hbi9saXN0aW5m by94ZW4tZGV2ZWw=