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=-7.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=no 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 43312C433E2 for ; Fri, 11 Sep 2020 15:27:07 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id F40C720770 for ; Fri, 11 Sep 2020 15:27:06 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=oracle.com header.i=@oracle.com header.b="fjp11hQg" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726265AbgIKP1C (ORCPT ); Fri, 11 Sep 2020 11:27:02 -0400 Received: from aserp2120.oracle.com ([141.146.126.78]:55304 "EHLO aserp2120.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726297AbgIKPUU (ORCPT ); Fri, 11 Sep 2020 11:20:20 -0400 Received: from pps.filterd (aserp2120.oracle.com [127.0.0.1]) by aserp2120.oracle.com (8.16.0.42/8.16.0.42) with SMTP id 08BFF3Zc061529; Fri, 11 Sep 2020 15:19:31 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=subject : to : references : from : message-id : date : mime-version : in-reply-to : content-type : content-transfer-encoding; s=corp-2020-01-29; bh=/MeEy7v1R447j4T1klPQoqAF2B+oLO9ldzBbaI8x8Es=; b=fjp11hQgk0M2ieGImtTlL3liHO/dyA25V5DntaVVhLX6Ilu+T/TV1XPoOJjeyYixOdXH zTu3b7QveAgDRj+O1ApqsEwqbXRl/lzWg7UZjAG6BWw4KrKZiZe0s1mRw0SMpwW/2LfK 7YUZ5RbrKNusDmRcqbVYffyvdjomq6LGK4rSI1g0g1J8rhlMt28xUhkmSX9FazUWm2G2 KyuibgxuaFLMs7xnoMXncD3eDGWm9zUul8GDnF48Ys6F2/7Cr3rvA60y7UAHvg4x611m A4nS3Z4JPOYu1YNBX3PDlGFv2TnzNlgfcG5BSV+f+eoo0qxkMfUYHDPryr29pkH/p7Bu Ng== Received: from aserp3020.oracle.com (aserp3020.oracle.com [141.146.126.70]) by aserp2120.oracle.com with ESMTP id 33c2mmesjv-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Fri, 11 Sep 2020 15:19:31 +0000 Received: from pps.filterd (aserp3020.oracle.com [127.0.0.1]) by aserp3020.oracle.com (8.16.0.42/8.16.0.42) with SMTP id 08BFFHDE118910; Fri, 11 Sep 2020 15:19:31 GMT Received: from aserv0122.oracle.com (aserv0122.oracle.com [141.146.126.236]) by aserp3020.oracle.com with ESMTP id 33cmkd8cfk-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 11 Sep 2020 15:19:31 +0000 Received: from abhmp0018.oracle.com (abhmp0018.oracle.com [141.146.116.24]) by aserv0122.oracle.com (8.14.4/8.14.4) with ESMTP id 08BFJK2q027490; Fri, 11 Sep 2020 15:19:20 GMT Received: from [10.74.86.16] (/10.74.86.16) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Fri, 11 Sep 2020 08:19:20 -0700 Subject: Re: [PATCH v3 00/11] Fix PM hibernation in Xen guests To: Anchal Agarwal , tglx@linutronix.de, mingo@redhat.com, bp@alien8.de, hpa@zytor.com, x86@kernel.org, jgross@suse.com, linux-pm@vger.kernel.org, linux-mm@kvack.org, kamatam@amazon.com, sstabellini@kernel.org, konrad.wilk@oracle.com, roger.pau@citrix.com, axboe@kernel.dk, davem@davemloft.net, rjw@rjwysocki.net, len.brown@intel.com, pavel@ucw.cz, peterz@infradead.org, eduval@amazon.com, sblbir@amazon.com, xen-devel@lists.xenproject.org, vkuznets@redhat.com, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, dwmw@amazon.co.uk, benh@kernel.crashing.org References: From: boris.ostrovsky@oracle.com Organization: Oracle Corporation Message-ID: <03baf888-5c10-429b-3206-b75d4af1e09e@oracle.com> Date: Fri, 11 Sep 2020 11:19:13 -0400 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:78.0) Gecko/20100101 Thunderbird/78.2.1 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Content-Language: en-US X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9741 signatures=668679 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 spamscore=0 malwarescore=0 phishscore=0 mlxlogscore=999 bulkscore=0 adultscore=0 mlxscore=0 suspectscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2006250000 definitions=main-2009110126 X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9741 signatures=668679 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 mlxscore=0 priorityscore=1501 phishscore=0 adultscore=0 bulkscore=0 clxscore=1011 mlxlogscore=999 malwarescore=0 suspectscore=0 lowpriorityscore=0 spamscore=0 impostorscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2006250000 definitions=main-2009110125 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 8/21/20 6:22 PM, Anchal Agarwal wrote: > > Known issues: > 1.KASLR causes intermittent hibernation failures. VM fails to resumes and > has to be restarted. I will investigate this issue separately and shouldn't > be a blocker for this patch series. Is there any change in status for this? This has been noted since January. -boris > 2. During hibernation, I observed sometimes that freezing of tasks fails due > to busy XFS workqueuei[xfs-cil/xfs-sync]. This is also intermittent may be 1 > out of 200 runs and hibernation is aborted in this case. Re-trying hibernation > may work. Also, this is a known issue with hibernation and some > filesystems like XFS has been discussed by the community for years with not an > effectve resolution at this point. >