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=-5.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS 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 A82C3C7618F for ; Thu, 18 Jul 2019 16:04:36 +0000 (UTC) Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 8550F217F4 for ; Thu, 18 Jul 2019 16:04:36 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 8550F217F4 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=suse.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=xen-devel-bounces@lists.xenproject.org Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.89) (envelope-from ) id 1ho8tC-0007ah-9M; Thu, 18 Jul 2019 16:04:14 +0000 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 1ho8tB-0007ac-Ix for xen-devel@lists.xenproject.org; Thu, 18 Jul 2019 16:04:13 +0000 X-Inumbo-ID: ae761070-a975-11e9-84e5-839c2586be03 Received: from mx1.suse.de (unknown [195.135.220.15]) by us1-amaz-eas2.inumbo.com (Halon) with ESMTPS id ae761070-a975-11e9-84e5-839c2586be03; Thu, 18 Jul 2019 16:04:11 +0000 (UTC) X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx1.suse.de (Postfix) with ESMTP id C6B7AAD69; Thu, 18 Jul 2019 16:04:10 +0000 (UTC) Message-ID: From: Dario Faggioli To: Sergey Dyasli , Juergen Gross , "xen-devel@lists.xenproject.org" In-Reply-To: <864742f0-9b84-e8fe-75be-fa94e217383f@citrix.com> References: <20190528103313.1343-1-jgross@suse.com> <3cb1c2b777e623a55bf87dc12a155734667ab23e.camel@suse.com> <864742f0-9b84-e8fe-75be-fa94e217383f@citrix.com> Organization: SUSE MIME-Version: 1.0 Date: Thu, 18 Jul 2019 18:04:03 +0200 User-Agent: Evolution 3.32.3 Subject: Re: [Xen-devel] [PATCH 00/60] xen: add core scheduling support 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: Stefano Stabellini , Wei Liu , Konrad Rzeszutek Wilk , George Dunlap , Andrew Cooper , Tim Deegan , RobertVanVossen , Julien Grall , Josh Whitehead , Meng Xu , Jan Beulich , Ian Jackson , Roger Pau =?ISO-8859-1?Q?Monn=E9?= Content-Type: multipart/mixed; boundary="===============1876966835337469683==" Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" --===============1876966835337469683== Content-Type: multipart/signed; micalg="pgp-sha256"; protocol="application/pgp-signature"; boundary="=-uToNS6DDbN6Fgq+Fvk7Z" --=-uToNS6DDbN6Fgq+Fvk7Z Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On Thu, 2019-07-18 at 16:14 +0100, Sergey Dyasli wrote: > On 18/07/2019 15:48, Juergen Gross wrote: > >=20 > > I can easily reproduce the issue with any PV guest with more than 1 > > vcpu > > by doing "xl save" and then "xl restore" again. > >=20 > > With the reproducer being available I'm now diving into the > > issue... >=20 > One further thing to add is that I was able to avoid the crash by > reverting >=20 > xen/sched: rework and rename vcpu_force_reschedule() >=20 Ah, interesting! > which is a part of the series. This made all tests with PV guests > pass. >=20 That's good news. :-) > Another question I have is do you have a git branch with core- > scheduling > patches rebased on top of current staging available somewhere? >=20 For my benchmarks, I used this: https://github.com/jgross1/xen/tree/sched-v1-rebase I don't know if Juergen has another one which is even more updated. Regards --=20 Dario Faggioli, Ph.D http://about.me/dario.faggioli Virtualization Software Engineer SUSE Labs, SUSE https://www.suse.com/ ------------------------------------------------------------------- <> (Raistlin Majere) --=-uToNS6DDbN6Fgq+Fvk7Z Content-Type: application/pgp-signature; name="signature.asc" Content-Description: This is a digitally signed message part -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEES5ssOj3Vhr0WPnOLFkJ4iaW4c+4FAl0wmGsACgkQFkJ4iaW4 c+7lNRAA2ucj/zxPQoZ5RwvvHXQ4juWWBD5AtRSQ1MxoqlGCZa8uYGv8wzZW6Z1D JaPQQ+KbpDlol+scwqTAICp0rHxJeKCjIqnS9wcemNZiIx8g2am1KTxZHSXEgmF7 kqKxtQiQ7LPulFuMbJh3KXAkL0A8eL4omN/VK77uK+QxCUYNIcawhS9ilQRw/EDL VU8zNIjNgLeB9C1MJH7hyKFRMPVCwcRR0w+KA2ol2GRnI2I6ssvyek7yupmlD3Pf 9fyXzHpaQYLCC1ZAHHzHPAj1oJqaYDXsnAtKeLZykmE4QBHxCnqPD8uL1BuJAsfa I992onrL5TT6swZcWD94n3HM3Lb2mIsYGnCerKfeCbpkPdCISdL8SFGqLmcANOh/ cP9iR+UNaZNBqopTwx/TYYXMRK8pTivmUnm4FsTo6w0Lk7ZGCpZskSzsJNEvFAJm pFLV1Ze4I+0xPEJZaUr6z9o7h5zBgpod5Mye8dy45ADWY8VhMN5qqCi/uZtw1IDT pQGFr3SFYGh93XInLl29kC7kBbaiSSMaRz1GQ4CVUVTjOZK4HwmLFUo7NB0MPl3I wKE/RL7TXSzN6e0Pk7HJCWqoUtrcSbb1kdH9/R3jKMnSbyURYyhI/bIBhE+YaWhN wfSG0J/98LeqQYEdppzfng8WYp7prJzyPTmhzc3K8Gnp+5U4g5g= =mB8o -----END PGP SIGNATURE----- --=-uToNS6DDbN6Fgq+Fvk7Z-- --===============1876966835337469683== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Content-Disposition: inline X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KWGVuLWRldmVs IG1haWxpbmcgbGlzdApYZW4tZGV2ZWxAbGlzdHMueGVucHJvamVjdC5vcmcKaHR0cHM6Ly9saXN0 cy54ZW5wcm9qZWN0Lm9yZy9tYWlsbWFuL2xpc3RpbmZvL3hlbi1kZXZlbA== --===============1876966835337469683==--