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GET /api/patches/985210/?format=api
{ "id": 985210, "url": "http://patchwork.ozlabs.org/api/patches/985210/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20181017082702.5581-13-armbru@redhat.com/", "project": { "id": 14, "url": "http://patchwork.ozlabs.org/api/projects/14/?format=api", "name": "QEMU Development", "link_name": "qemu-devel", "list_id": "qemu-devel.nongnu.org", "list_email": "qemu-devel@nongnu.org", "web_url": "", "scm_url": "", "webscm_url": "", "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20181017082702.5581-13-armbru@redhat.com>", "list_archive_url": null, "date": "2018-10-17T08:26:36", "name": "[v4,12/38] migration: Fix !replay_can_snapshot() error handling", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "f401d0524dd639b481ab3a465c716b42c5204619", "submitter": { "id": 2645, "url": "http://patchwork.ozlabs.org/api/people/2645/?format=api", "name": "Markus Armbruster", "email": "armbru@redhat.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20181017082702.5581-13-armbru@redhat.com/mbox/", "series": [ { "id": 71196, "url": "http://patchwork.ozlabs.org/api/series/71196/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/list/?series=71196", "date": "2018-10-17T08:26:36", "name": "Replace some unwise uses of error_report() & friends", "version": 4, "mbox": "http://patchwork.ozlabs.org/series/71196/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/985210/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/985210/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>", "X-Original-To": "incoming@patchwork.ozlabs.org", "Delivered-To": "patchwork-incoming@bilbo.ozlabs.org", "Authentication-Results": [ "ozlabs.org;\n\tspf=pass (mailfrom) smtp.mailfrom=nongnu.org\n\t(client-ip=2001:4830:134:3::11; helo=lists.gnu.org;\n\tenvelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org;\n\treceiver=<UNKNOWN>)", "ozlabs.org;\n\tdmarc=fail (p=none dis=none) header.from=redhat.com" ], "Received": [ "from lists.gnu.org (lists.gnu.org [IPv6:2001:4830:134:3::11])\n\t(using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits))\n\t(No client certificate requested)\n\tby ozlabs.org (Postfix) with ESMTPS id 42Zlg10FnLz9s9J\n\tfor <incoming@patchwork.ozlabs.org>;\n\tWed, 17 Oct 2018 19:27:57 +1100 (AEDT)", "from localhost ([::1]:34494 helo=lists.gnu.org)\n\tby lists.gnu.org with esmtp (Exim 4.71) (envelope-from\n\t<qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>)\n\tid 1gChBK-00087t-Es\n\tfor incoming@patchwork.ozlabs.org; Wed, 17 Oct 2018 04:27:54 -0400", "from eggs.gnu.org ([2001:4830:134:3::10]:51031)\n\tby lists.gnu.org with esmtp (Exim 4.71)\n\t(envelope-from <armbru@redhat.com>) id 1gChAb-000856-Io\n\tfor qemu-devel@nongnu.org; Wed, 17 Oct 2018 04:27:11 -0400", "from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71)\n\t(envelope-from <armbru@redhat.com>) id 1gChAZ-00010T-0z\n\tfor qemu-devel@nongnu.org; Wed, 17 Oct 2018 04:27:09 -0400", "from mx1.redhat.com ([209.132.183.28]:33986)\n\tby eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32)\n\t(Exim 4.71) (envelope-from <armbru@redhat.com>) id 1gChAY-0000zR-Ow\n\tfor qemu-devel@nongnu.org; Wed, 17 Oct 2018 04:27:06 -0400", "from smtp.corp.redhat.com\n\t(int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12])\n\t(using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits))\n\t(No client certificate requested)\n\tby mx1.redhat.com (Postfix) with ESMTPS id 00CDA155DB\n\tfor <qemu-devel@nongnu.org>; Wed, 17 Oct 2018 08:27:06 +0000 (UTC)", "from blackfin.pond.sub.org (ovpn-116-50.ams2.redhat.com\n\t[10.36.116.50])\n\tby smtp.corp.redhat.com (Postfix) with ESMTPS id BEA0653B00;\n\tWed, 17 Oct 2018 08:27:05 +0000 (UTC)", "by blackfin.pond.sub.org (Postfix, from userid 1000)\n\tid 40AAE1132947; Wed, 17 Oct 2018 10:27:02 +0200 (CEST)" ], "From": "Markus Armbruster <armbru@redhat.com>", "To": "qemu-devel@nongnu.org", "Date": "Wed, 17 Oct 2018 10:26:36 +0200", "Message-Id": "<20181017082702.5581-13-armbru@redhat.com>", "In-Reply-To": "<20181017082702.5581-1-armbru@redhat.com>", "References": "<20181017082702.5581-1-armbru@redhat.com>", "MIME-Version": "1.0", "Content-Type": "text/plain; charset=UTF-8", "X-Scanned-By": "MIMEDefang 2.79 on 10.5.11.12", "X-Greylist": "Sender IP whitelisted, not delayed by milter-greylist-4.5.16\n\t(mx1.redhat.com [10.5.110.29]);\n\tWed, 17 Oct 2018 08:27:06 +0000 (UTC)", "Content-Transfer-Encoding": "quoted-printable", "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] [PATCH v4 12/38] migration: Fix !replay_can_snapshot()\n\terror handling", "X-BeenThere": "qemu-devel@nongnu.org", "X-Mailman-Version": "2.1.21", "Precedence": "list", "List-Id": "<qemu-devel.nongnu.org>", "List-Unsubscribe": "<https://lists.nongnu.org/mailman/options/qemu-devel>,\n\t<mailto:qemu-devel-request@nongnu.org?subject=unsubscribe>", "List-Archive": "<http://lists.nongnu.org/archive/html/qemu-devel/>", "List-Post": "<mailto:qemu-devel@nongnu.org>", "List-Help": "<mailto:qemu-devel-request@nongnu.org?subject=help>", "List-Subscribe": "<https://lists.nongnu.org/mailman/listinfo/qemu-devel>,\n\t<mailto:qemu-devel-request@nongnu.org?subject=subscribe>", "Cc": "Paolo Bonzini <pbonzini@redhat.com>", "Errors-To": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org", "Sender": "\"Qemu-devel\"\n\t<qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>" }, "content": "Calling error_report() in a function that takes an Error ** argument\nis suspicious. save_snapshot() and load_snapshot() do that, and then\nfail without setting an error. Wrong. The HMP commands survive this\nunscathed, since hmp_handle_error() does nothing when no error has\nbeen set. Callers main() (on behalf of -loadvm) and\nreplay_vmstate_init() crash, but I'm not sure the error is possible\nthere.\n\nScrewed up when commit 377b21ccea1 (v2.12.0) added incorrect error\nhandling right next to correct examples. Fix by calling error_setg()\ninstead of error_report().\n\nFixes: 377b21ccea1755a8b0dae822c29567c58dda6939\nCc: Paolo Bonzini <pbonzini@redhat.com>\nSigned-off-by: Markus Armbruster <armbru@redhat.com>\nReviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>\n---\n migration/savevm.c | 8 ++++----\n 1 file changed, 4 insertions(+), 4 deletions(-)", "diff": "diff --git a/migration/savevm.c b/migration/savevm.c\nindex 2d10e45582..5f8eb38676 100644\n--- a/migration/savevm.c\n+++ b/migration/savevm.c\n@@ -2414,8 +2414,8 @@ int save_snapshot(const char *name, Error **errp)\n AioContext *aio_context;\n \n if (!replay_can_snapshot()) {\n- error_report(\"Record/replay does not allow making snapshot \"\n- \"right now. Try once more later.\");\n+ error_setg(errp, \"Record/replay does not allow making snapshot \"\n+ \"right now. Try once more later.\");\n return ret;\n }\n \n@@ -2611,8 +2611,8 @@ int load_snapshot(const char *name, Error **errp)\n MigrationIncomingState *mis = migration_incoming_get_current();\n \n if (!replay_can_snapshot()) {\n- error_report(\"Record/replay does not allow loading snapshot \"\n- \"right now. Try once more later.\");\n+ error_setg(errp, \"Record/replay does not allow loading snapshot \"\n+ \"right now. Try once more later.\");\n return -EINVAL;\n }\n \n", "prefixes": [ "v4", "12/38" ] }