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mx.microsoft.com 1; spf=pass smtp.mailfrom=citrix.com; dmarc=pass action=none header.from=citrix.com; dkim=pass header.d=citrix.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=citrix.onmicrosoft.com; s=selector2-citrix-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=A2qsHMrM0kIcckogph1nC6gWp19IZaKmJkCL4ZVrbZ4=; b=PPtK48djGLgunz8kDgg8iZPMarjZFtdpNS3bB8bIEx6J3zEkqEI6oOUlnuT3moLjXBXn6Kttyyjc5GDIc9c0tLFUtyWPXKLyy65l2dK+TUe/BkkntcoUJbLx718AQORLcIGTfSn1HDcCGHIyIIsEv7Bhn+11giBnj+5TgPlkiXk= Subject: Re: [ANNOUNCE] Xen 4.15 release schedule and feature tracking From: Andrew Cooper To: Jan Beulich , Ian Jackson CC: , , "Tamas K Lengyel" , =?UTF-8?Q?Micha=c5=82_Leszczy=c5=84ski?= References: <24567.7198.846779.557032@mariner.uk.xensource.com> <24576.27654.137226.608671@mariner.uk.xensource.com> <017cd214-fce8-f8b7-7134-0a89eb45c2ac@citrix.com> <867ee616-d808-0107-cbf4-82b7d296d0e6@suse.com> <79f5fd23-debb-701a-1aec-30144af1a896@citrix.com> Message-ID: Date: Fri, 15 Jan 2021 10:59:33 +0000 User-Agent: Mozilla/5.0 (X11; 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X-MS-Exchange-AntiSpam-MessageData: =?utf-8?B?T09aSkl6a09jQXJ0aVpLUUV1WG0xa1h6WGorajUzSG5QM3ZGOWhLVTBkN0lV?= =?utf-8?B?WUFBK1JJQk5WVnZrZGFZQlJ1eFhiQ2Q5YzRMUGpjZVJ0a1FUa1lIbHU5U1Fu?= =?utf-8?B?STY3SCtLdC9lVFpHb280eTVsaE9SZHkvUE00R05hcGw0blR6VmxvQWxPRGR1?= =?utf-8?B?M3l4MWg2R1dZSFFKelRkNzUxOHJwMWNTSEZZZXZVcldvOFlCSHZrYnhTb1Qz?= =?utf-8?B?d2ppcVJEU2w5TlJqMWFNaVJHVGFyTDlEbGlGM1dqSlpUb2pEbm5aQTE4c1VY?= =?utf-8?B?QmZaN08ySjYzZVVwZWR6WWZHNjRaNTVVaTU5enFjb3dzNjdjNU9WRlFkMjJP?= =?utf-8?B?Tm1PNUlWYXhJc2JWR1NHT21hNGVjS3FCazd6M1drMGF0ZFQ1ajVqWE9ZUUo3?= =?utf-8?B?alM3UGcyK0ttTkdrWjZESzR0SmJiMnNwYTBTRitNZW5BT2tGd3lMcDUwaTYv?= =?utf-8?B?WGhUQzdTanZmMlNORVByZ1NPR1J4bGF0eFRkelJEMFhKWjJLTnN5SHRrbFFQ?= =?utf-8?B?WlFPRmcyaHA0S3R4UEdhbFlGUkhsUHpUR0VkY0grRjdhU3MxSzJqTThwY2ZN?= =?utf-8?B?MitXY2EwbFdac3VZNFAwNWgrWnZ4anhoUWdRd2hmbzk4UElLUXBJNkhNdE1p?= =?utf-8?B?ZWJnYXBtU2tuTEYxejlUYWUrMGs1UXpCVlIvMlZRWTQra1ZXcTdSUVFLS21s?= =?utf-8?B?ZER4N0FKd3pQc3dqbEdSVlJwY0oxVDRMd25QMFh1UzA5d3JNQm5Da2JuZU5u?= =?utf-8?B?elZwOVhNdGYwOGZoWkpna0p2dzlkLy94QmNZZ21CZUxJOVNrNS9pU0FicWJv?= =?utf-8?B?dEdEN0tocWF5NDBzVWJtTXE5aXh6dWpsR1RYMlAreU9zQXFQSjVBS1dZa3BY?= =?utf-8?B?b2lqb2dPWnJVNCtBWjAyUVRnbXFrVUdHRk54SE93VXNXcWlWWXArcTBOQkF0?= =?utf-8?B?aGMzbkRiRE1kRm9JNUZkYlRBTGhZMEdiaXpqS1dpUkErQ3ljTzhZSXBzZmVo?= =?utf-8?B?LytGNzIvYllaTHFobitqYnFjcHRycEJkdmZpa2xTQnF4ZlRORExVTkxjN003?= =?utf-8?B?dlVaVkZ2V3NUY2hsOC9wMFBPR0dUejdBOTZUOHVHa3JSVDZ2Z1RRbFhZWHVJ?= =?utf-8?B?bkFiY2dwQWQwb1duSHNEWlBWVHg0Y3ZOakM5ZGthZlFTSUxpZzZMMkNjd2RV?= =?utf-8?B?UTQ5bUNudlQzajZCdTB2OThWVTgzV3FSQm5hQ2xvdzVvQlBtRm9xSjRrc01a?= =?utf-8?B?VE1XdmRZTE04azJUd21qbWUzYkkraldHMWI5M0JWT1ZseFJOZWVpcUdUNmht?= =?utf-8?Q?xZvj/nbJNVaHlr0Yb4DroaIYF+bYHrwsKx?= X-MS-Exchange-CrossTenant-Network-Message-Id: 9f8caa84-d69d-465d-fb86-08d8b944a80a X-MS-Exchange-CrossTenant-AuthSource: BYAPR03MB4728.namprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 15 Jan 2021 10:59:40.4070 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 335836de-42ef-43a2-b145-348c2ee9ca5b X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: FNjHxXW/9ZZFE9N5Bg5sKRTJvxdg7DpjH0RX8GvQIO2ikGyyapJejRzvygdY01Y3rXx0ecLEG010Rt0WHJ13lqeb2aM91fddjdwLwOvPnaE= X-MS-Exchange-Transport-CrossTenantHeadersStamped: BYAPR03MB3543 X-OriginatorOrg: citrix.com On 15/01/2021 10:52, Andrew Cooper wrote: > On 15/01/2021 09:57, Jan Beulich wrote: >> On 14.01.2021 20:02, Andrew Cooper wrote: >>> Bugs: >>> >>> 1) HPET/PIT issue on newer Intel systems.  This has had literally tens >>> of reports across the devel and users mailing lists, and prevents Xen >>> from booting at all on the past two generations of Intel laptop.  I've >>> finally got a repro and posted a fix to the list, but still in progress. >>> >>> 2) "scheduler broken" bugs.  We've had 4 or 5 reports of Xen not >>> working, and very little investigation on whats going on.  Suspicion is >>> that there might be two bugs, one with smt=0 on recent AMD hardware, and >>> one more general "some workloads cause negative credit" and might or >>> might not be specific to credit2 (debugging feedback differs - also >>> might be 3 underlying issue). >>> >>> All of these have had repeated bug reports.  I'd classify them as >>> blockers, given the impact they're having on people. >> 3) Fallout from MSR handling behavioral change. > Yes, sorry for forgetting.  I was literally working on it while writing > this email - no idea why I forgot it. > > 4) zstd support to unbreak Fedora.  (I'm deliberately putting this in > the bugs rather than feature cateogry). Ha!  I should have read further through my emails before replying. But we do at least want this item tracking. ~Andrew