From nobody Mon Feb 9 02:12:39 2026 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) client-ip=208.118.235.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=redhat.com Return-Path: Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) by mx.zohomail.com with SMTPS id 1537982118807666.7221239600593; Wed, 26 Sep 2018 10:15:18 -0700 (PDT) Received: from localhost ([::1]:59870 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1g5DP8-0001ti-52 for importer@patchew.org; Wed, 26 Sep 2018 13:15:14 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:52629) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1g5DMu-0000V8-21 for qemu-devel@nongnu.org; Wed, 26 Sep 2018 13:12:59 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1g5DMt-0006kN-DX for qemu-devel@nongnu.org; Wed, 26 Sep 2018 13:12:56 -0400 Received: from mx1.redhat.com ([209.132.183.28]:37952) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1g5DMt-0006jh-76 for qemu-devel@nongnu.org; Wed, 26 Sep 2018 13:12:55 -0400 Received: from smtp.corp.redhat.com (int-mx12.intmail.prod.int.phx2.redhat.com [10.5.11.27]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 7FE03285CE; Wed, 26 Sep 2018 17:12:54 +0000 (UTC) Received: from dgilbert-t530.redhat.com (unknown [10.36.118.26]) by smtp.corp.redhat.com (Postfix) with ESMTP id C1022DB56F; Wed, 26 Sep 2018 17:12:52 +0000 (UTC) From: "Dr. David Alan Gilbert (git)" To: qemu-devel@nongnu.org, xiaoguangrong@tencent.com, joserz@linux.ibm.com, wei@redhat.com, thuth@redhat.com, marcandre.lureau@redhat.com, fli@suse.com Date: Wed, 26 Sep 2018 18:12:24 +0100 Message-Id: <20180926171236.45203-5-dgilbert@redhat.com> In-Reply-To: <20180926171236.45203-1-dgilbert@redhat.com> References: <20180926171236.45203-1-dgilbert@redhat.com> X-Scanned-By: MIMEDefang 2.84 on 10.5.11.27 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.30]); Wed, 26 Sep 2018 17:12:54 +0000 (UTC) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [PULL 04/16] Add a hint message to loadvm and exits on failure X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: quintela@redhat.com Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail: RDMRC_1 RSF_0 Z_629925259 SPT_0 Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" From: Jose Ricardo Ziviani This patch adds a small hint for the failure case of the load snapshot process. It may be useful for users to remember that the VM configuration has changed between the save and load processes. (qemu) loadvm vm-20180903083641 Unknown savevm section or instance 'cpu_common' 4. Make sure that your current VM setup matches your saved VM setup, including= any hotplugged devices Error -22 while loading VM state (qemu) device_add host-spapr-cpu-core,core-id=3D4 (qemu) loadvm vm-20180903083641 (qemu) c (qemu) info status VM status: running It also exits Qemu if the snapshot cannot be loaded before reaching the main loop (-loadvm in the command line). $ qemu-system-ppc64 ... -loadvm vm-20180903083641 qemu-system-ppc64: Unknown savevm section or instance 'cpu_common' 4. Make sure that your current VM setup matches your saved VM setup, including= any hotplugged devices qemu-system-ppc64: Error -22 while loading VM state $ Signed-off-by: Jose Ricardo Ziviani Message-Id: <20180903162613.15877-1-joserz@linux.ibm.com> Reviewed-by: Juan Quintela Signed-off-by: Juan Quintela Signed-off-by: Dr. David Alan Gilbert --- migration/savevm.c | 4 +++- vl.c | 1 + 2 files changed, 4 insertions(+), 1 deletion(-) diff --git a/migration/savevm.c b/migration/savevm.c index 13e51f0e34..9692577318 100644 --- a/migration/savevm.c +++ b/migration/savevm.c @@ -2078,7 +2078,9 @@ qemu_loadvm_section_start_full(QEMUFile *f, Migration= IncomingState *mis) /* Find savevm section */ se =3D find_se(idstr, instance_id); if (se =3D=3D NULL) { - error_report("Unknown savevm section or instance '%s' %d", + error_report("Unknown savevm section or instance '%s' %d. " + "Make sure that your current VM setup matches your " + "saved VM setup, including any hotplugged devices", idstr, instance_id); return -EINVAL; } diff --git a/vl.c b/vl.c index 694bb67890..afbbec2383 100644 --- a/vl.c +++ b/vl.c @@ -4530,6 +4530,7 @@ int main(int argc, char **argv, char **envp) if (load_snapshot(loadvm, &local_err) < 0) { error_report_err(local_err); autostart =3D 0; + exit(1); } } =20 --=20 2.17.1