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=-0.6 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS 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 C6873C43603 for ; Tue, 17 Dec 2019 15:03:48 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (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 96A66218AC for ; Tue, 17 Dec 2019 15:03:48 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="aN5rNtFk" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 96A66218AC Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:41580 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1ihEO3-0001lm-Kw for qemu-devel@archiver.kernel.org; Tue, 17 Dec 2019 10:03:47 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:40120) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1ihEKM-0006L1-Uf for qemu-devel@nongnu.org; Tue, 17 Dec 2019 10:00:00 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ihEKK-00040F-9m for qemu-devel@nongnu.org; Tue, 17 Dec 2019 09:59:57 -0500 Received: from us-smtp-1.mimecast.com ([205.139.110.61]:32589 helo=us-smtp-delivery-1.mimecast.com) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1ihEKK-0003rY-0p for qemu-devel@nongnu.org; Tue, 17 Dec 2019 09:59:56 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1576594794; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=iWkeDPA9pq1Fch/p5WlEPtzFM+wyUpcOI9JsLCyEXrE=; b=aN5rNtFkTP1UdytQ4pkk1L/QIF5HFK9fThZv5Cnprh5tZO0tkgv2pso9rbRchG5Fc5sdll /gvlv6W3Vui8J47jtwvQjMXjHt7bF+UanCxXwjbh4l+8hey6xRcgNmWU8dXiOuJHtXNs7t 5eiTYmu3tAPcFl+CLyBtfDnccZxai6A= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-304-_zkOjlk5OxaPClfjrA1ziA-1; Tue, 17 Dec 2019 09:59:53 -0500 Received: from smtp.corp.redhat.com (int-mx08.intmail.prod.int.phx2.redhat.com [10.5.11.23]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 1097910054E3; Tue, 17 Dec 2019 14:59:49 +0000 (UTC) Received: from linux.fritz.box.com (ovpn-117-20.ams2.redhat.com [10.36.117.20]) by smtp.corp.redhat.com (Postfix) with ESMTP id EF21826574; Tue, 17 Dec 2019 14:59:47 +0000 (UTC) From: Kevin Wolf To: qemu-block@nongnu.org Subject: [PATCH 0/3] block: Fix external snapshot with VM state Date: Tue, 17 Dec 2019 15:59:36 +0100 Message-Id: <20191217145939.5537-1-kwolf@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 X-MC-Unique: _zkOjlk5OxaPClfjrA1ziA-1 X-Mimecast-Spam-Score: 0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 205.139.110.61 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: kwolf@redhat.com, qemu-devel@nongnu.org, mreitz@redhat.com Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" This fixes bdrv_invalidate_cache_all() for some kinds of graphs where part of the nodes are active and others are inactive. This is a scenario that happens when libvirt takes an external snapshot with VM state. This was reported in: https://bugzilla.redhat.com/show_bug.cgi?id=3D1781637 ('qemu crashed when do mem and disk snapshot') Based-on: <20191216170857.11880-1-kwolf@redhat.com> ('iotests: Remove duplicated blockdev_create()') Kevin Wolf (3): block: Activate recursively even for already active nodes hmp: Allow using qdev ID for qemu-io command iotests: Test external snapshot with VM state block.c | 50 +++++++++++------------ monitor/hmp-cmds.c | 28 ++++++++----- hmp-commands.hx | 8 ++-- tests/qemu-iotests/280 | 83 ++++++++++++++++++++++++++++++++++++++ tests/qemu-iotests/280.out | 50 +++++++++++++++++++++++ tests/qemu-iotests/group | 1 + 6 files changed, 181 insertions(+), 39 deletions(-) create mode 100755 tests/qemu-iotests/280 create mode 100644 tests/qemu-iotests/280.out --=20 2.20.1