From nobody Tue Nov 4 18:40:45 2025 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 1530608164059121.96942857889076; Tue, 3 Jul 2018 01:56:04 -0700 (PDT) Received: from localhost ([::1]:38925 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1faH6R-0002xP-CC for importer@patchew.org; Tue, 03 Jul 2018 04:56:03 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:52984) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1faH4X-0001RW-7S for qemu-devel@nongnu.org; Tue, 03 Jul 2018 04:54:07 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1faH4V-0007Dk-8b for qemu-devel@nongnu.org; Tue, 03 Jul 2018 04:54:05 -0400 Received: from mx3-rdu2.redhat.com ([66.187.233.73]:51390 helo=mx1.redhat.com) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1faH4V-0007D6-4a for qemu-devel@nongnu.org; Tue, 03 Jul 2018 04:54:03 -0400 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.rdu2.redhat.com [10.11.54.4]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 92A084026797; Tue, 3 Jul 2018 08:54:02 +0000 (UTC) Received: from blackfin.pond.sub.org (ovpn-116-126.ams2.redhat.com [10.36.116.126]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 64BAE202704B; Tue, 3 Jul 2018 08:54:02 +0000 (UTC) Received: by blackfin.pond.sub.org (Postfix, from userid 1000) id CE3341132CA9; Tue, 3 Jul 2018 10:53:58 +0200 (CEST) From: Markus Armbruster To: qemu-devel@nongnu.org Date: Tue, 3 Jul 2018 10:53:42 +0200 Message-Id: <20180703085358.13941-17-armbru@redhat.com> In-Reply-To: <20180703085358.13941-1-armbru@redhat.com> References: <20180703085358.13941-1-armbru@redhat.com> X-Scanned-By: MIMEDefang 2.78 on 10.11.54.4 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.6]); Tue, 03 Jul 2018 08:54:02 +0000 (UTC) X-Greylist: inspected by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.6]); Tue, 03 Jul 2018 08:54:02 +0000 (UTC) for IP:'10.11.54.4' DOMAIN:'int-mx04.intmail.prod.int.rdu2.redhat.com' HELO:'smtp.corp.redhat.com' FROM:'armbru@redhat.com' RCPT:'' X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 66.187.233.73 Subject: [Qemu-devel] [PATCH v2 16/32] tests/qmp-test: Demonstrate QMP errors jumping the queue 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: mdroth@linux.vnet.ibm.com, stefanha@redhat.com, peterx@redhat.com, dgilbert@redhat.com Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail: RSF_0 Z_629925259 SPT_0 Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" When OOB is enabled, out-of-band commands are executed right away, everything else is queued. This lets out-of-band commands "jump the queue". However, certain errors are always reported right away, and therefore can jump the queue even when the erroneous input does not request out-of-band execution. These errors are pretty unlikely to occur in production, but it's wrong all the same. Mark FIXME. Signed-off-by: Markus Armbruster Reviewed-by: Eric Blake Reviewed-by: Peter Xu --- monitor.c | 1 + tests/qmp-test.c | 7 +++++++ 2 files changed, 8 insertions(+) diff --git a/monitor.c b/monitor.c index 51ba1485ad..28fa9b8d44 100644 --- a/monitor.c +++ b/monitor.c @@ -4338,6 +4338,7 @@ static void handle_qmp_command(JSONMessageParser *par= ser, GQueue *tokens) return; =20 err: + /* FIXME overtakes queued in-band commands, wrong when !qmp_is_oob() */ monitor_qmp_respond(mon, NULL, err, NULL); qobject_unref(req); } diff --git a/tests/qmp-test.c b/tests/qmp-test.c index 3f4e43bd2b..6581d1d755 100644 --- a/tests/qmp-test.c +++ b/tests/qmp-test.c @@ -242,6 +242,13 @@ static void test_qmp_oob(void) unblock_blocked_cmd(); recv_cmd_id(qts, "ib-blocks-1"); recv_cmd_id(qts, "ib-quick-1"); + + /* FIXME certain in-band errors overtake slow in-band command */ + send_cmd_that_blocks(qts, "blocks-2"); + qtest_async_qmp(qts, "{ 'id': 'err-2' }"); + recv_cmd_id(qts, NULL); + unblock_blocked_cmd(); + recv_cmd_id(qts, "blocks-2"); cleanup_blocking_cmd(); =20 qtest_quit(qts); --=20 2.17.1