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GET /api/1.1/patches/2230553/?format=api
{ "id": 2230553, "url": "http://patchwork.ozlabs.org/api/1.1/patches/2230553/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260430-qemu-vnc-v3-17-be96757428d0@redhat.com/", "project": { "id": 14, "url": "http://patchwork.ozlabs.org/api/1.1/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": "" }, "msgid": "<20260430-qemu-vnc-v3-17-be96757428d0@redhat.com>", "date": "2026-04-29T21:02:50", "name": "[v3,17/26] ui/vnc: clean up VNC displays on exit", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "45f122c49208a824397ba6f3855371ce19a920f5", "submitter": { "id": 66774, "url": "http://patchwork.ozlabs.org/api/1.1/people/66774/?format=api", "name": "Marc-André Lureau", "email": "marcandre.lureau@redhat.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260430-qemu-vnc-v3-17-be96757428d0@redhat.com/mbox/", "series": [ { "id": 502150, "url": "http://patchwork.ozlabs.org/api/1.1/series/502150/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/list/?series=502150", "date": "2026-04-29T21:02:34", "name": "ui: add standalone VNC server over D-Bus", "version": 3, "mbox": "http://patchwork.ozlabs.org/series/502150/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2230553/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2230553/checks/", "tags": {}, "headers": { "Return-Path": "<qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>", "X-Original-To": "incoming@patchwork.ozlabs.org", "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (1024-bit key;\n unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256\n header.s=mimecast20190719 header.b=PvloAO1U;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org\n (client-ip=209.51.188.17; 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Wed, 29 Apr 2026 17:05:02 -0400", "from mx-prod-mc-03.mail-002.prod.us-west-2.aws.redhat.com\n (ec2-54-186-198-63.us-west-2.compute.amazonaws.com [54.186.198.63]) by\n relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3,\n cipher=TLS_AES_256_GCM_SHA384) id us-mta-463-o7l964QgOf2P83nbbpg2UQ-1; Wed,\n 29 Apr 2026 17:04:54 -0400", "from mx-prod-int-06.mail-002.prod.us-west-2.aws.redhat.com\n (mx-prod-int-06.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.93])\n (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)\n key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest\n SHA256)\n (No client certificate requested)\n by mx-prod-mc-03.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS\n id 5EF6A19560B7\n for <qemu-devel@nongnu.org>; Wed, 29 Apr 2026 21:04:53 +0000 (UTC)", "from localhost (unknown [10.44.22.2])\n by mx-prod-int-06.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP\n id 007661800577; Wed, 29 Apr 2026 21:04:51 +0000 (UTC)" ], "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com;\n s=mimecast20190719; t=1777496695;\n h=from:from:reply-to:subject:subject:date:date:message-id:message-id:\n to:to:cc:cc:mime-version:mime-version:content-type:content-type:\n content-transfer-encoding:content-transfer-encoding:\n in-reply-to:in-reply-to:references:references;\n bh=K9ejhMqDOIAnqlDB6S6XDF5JcjPS+M/QLKhH2rZsC/U=;\n b=PvloAO1UvWpqe4CgtZYMrajkFzhXTGM/ztrKuSEiCSQKkeCUSV6KgoAG556hWTu869VkLB\n LLrZcx4GFNUMRuum5tnu9qtBIFpKUnH4COxKMjRjA9DRrokvSldyJaorQMcyVxyJbHtOgZ\n IWTZef6jWt8v4dUPulHOmncK9pXeTfM=", "X-MC-Unique": "o7l964QgOf2P83nbbpg2UQ-1", "X-Mimecast-MFC-AGG-ID": "o7l964QgOf2P83nbbpg2UQ_1777496693", "From": "=?utf-8?q?Marc-Andr=C3=A9_Lureau?= <marcandre.lureau@redhat.com>", "Date": "Thu, 30 Apr 2026 01:02:50 +0400", "Subject": "[PATCH v3 17/26] ui/vnc: clean up VNC displays on exit", "MIME-Version": "1.0", "Content-Type": "text/plain; charset=\"utf-8\"", "Content-Transfer-Encoding": "8bit", "Message-Id": "<20260430-qemu-vnc-v3-17-be96757428d0@redhat.com>", "References": "<20260430-qemu-vnc-v3-0-be96757428d0@redhat.com>", "In-Reply-To": "<20260430-qemu-vnc-v3-0-be96757428d0@redhat.com>", "To": "qemu-devel@nongnu.org", "Cc": "=?utf-8?q?Marc-Andr=C3=A9_Lureau?= <marcandre.lureau@redhat.com>", "X-Developer-Signature": "v=1; a=openpgp-sha256; l=3164;\n i=marcandre.lureau@redhat.com; h=from:subject:message-id;\n bh=UofqdxEpsoMU3tHdoWYdaOMGh4untiTWKq2jjDIVs/Q=;\n b=owEBbQKS/ZANAwAKAdro4Ql1lpzlAcsmYgBp8nIMJ1jHyit5LpouPussdgMCirQheJLzzaMuf\n CCUYpcUpy6JAjMEAAEKAB0WIQSHqb2TP4fGBtJ29i3a6OEJdZac5QUCafJyDAAKCRDa6OEJdZac\n 5dltD/4mDqHs1l5qBtnLmqVCgXkW8sFKReO1HjMEcepO2AP+mwOcaNB7VV3gRaNLZMM5mgTs8o1\n jEUrJkyFH4nXB4pIUlSX3UwF4NHLmcN8ZXPQMnzXugxl25XFGc41s/IoSn/bAGOEYjxMTChUIpb\n 5j0uvttmP/N8i4jbhIwGvokhYWbnYPm5DsQazcCvGAKoOHw8kYgvjXKBg20SscqVoO/8Xn7R9Ly\n JJk25QHu7ueag2JgFdUwREfZN8ffrVp9BcsHJ+StD9aBy8XFbz8eAm73WPjinCWzKoN7qilHJV+\n DxsmyFRcdaS7Z83b9CbldlkNZliZN08PBVFNZfMnuHSlyFrAGjlrPHYp1x5Cu1yKMn4k+VKx5L4\n YhuMNdFB5svr7FSGoQYt/+XwJl8MSFRCrnJqQtCycqhpeGvbbzxFpaGro5kEaOf8BxgQ4ja1Uzw\n cnU6/TFLUOOtrsGEml6E2Y43oy7D2P+p+W9GC7BQgLNbfdplFe4UmzK9ny+TQfHYnjQD/Wd8/l0\n KxsyZ9z2CV4f/IU7budzMZBcygkqujol7YrzVKKSzilMCuCqOZGHhNF/lLcSdcgIIcry9hQFC76\n JUwo6i9TiVpVIHEVB4W3JjyibDoa85keKa4ZHa8ZXMcbAz3CxKhQZzGnbT0TPE8YI4lOJbXEHGW\n iENqQFGK0M30qxQ==", "X-Developer-Key": "i=marcandre.lureau@redhat.com; a=openpgp;\n fpr=87A9BD933F87C606D276F62DDAE8E10975969CE5", "X-Scanned-By": "MIMEDefang 3.4.1 on 10.30.177.93", "Received-SPF": "pass client-ip=170.10.129.124;\n envelope-from=marcandre.lureau@redhat.com;\n helo=us-smtp-delivery-124.mimecast.com", "X-Spam_score_int": "12", "X-Spam_score": "1.2", "X-Spam_bar": "+", "X-Spam_report": "(1.2 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001,\n DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1,\n RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001,\n RCVD_IN_SBL_CSS=3.335, SPF_HELO_PASS=-0.001,\n SPF_PASS=-0.001 autolearn=no autolearn_force=no", "X-Spam_action": "no action", "X-BeenThere": "qemu-devel@nongnu.org", "X-Mailman-Version": "2.1.29", "Precedence": "list", "List-Id": "qemu development <qemu-devel.nongnu.org>", "List-Unsubscribe": "<https://lists.nongnu.org/mailman/options/qemu-devel>,\n <mailto:qemu-devel-request@nongnu.org?subject=unsubscribe>", "List-Archive": "<https://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 <mailto:qemu-devel-request@nongnu.org?subject=subscribe>", "Errors-To": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org", "Sender": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org" }, "content": "Previously, VNC displays were never torn down on QEMU exit, leaking\nresources and leaving connected clients with unclean disconnects.\n\nAdd vnc_cleanup() to free all VNC displays during qemu_cleanup().\nMake vnc_display_close() initiate disconnection of active clients,\nand have vnc_display_free() drain the main loop until all clients\nhave completed their teardown, instead of asserting the client list\nis empty.\n\nSigned-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>\n---\n include/ui/console.h | 1 +\n system/runstate.c | 5 +++++\n ui/vnc.c | 20 ++++++++++++++++++--\n 3 files changed, 24 insertions(+), 2 deletions(-)", "diff": "diff --git a/include/ui/console.h b/include/ui/console.h\nindex 550a5e08e46..89fb4c1942a 100644\n--- a/include/ui/console.h\n+++ b/include/ui/console.h\n@@ -445,6 +445,7 @@ void vnc_parse(const char *str);\n int vnc_init_func(void *opaque, QemuOpts *opts, Error **errp);\n bool vnc_display_reload_certs(const char *id, Error **errp);\n bool vnc_display_update(DisplayUpdateOptionsVNC *arg, Error **errp);\n+void vnc_cleanup(void);\n \n /* input.c */\n int index_from_key(const char *key, size_t key_length);\ndiff --git a/system/runstate.c b/system/runstate.c\nindex 770253b467b..0e1cb3b4e67 100644\n--- a/system/runstate.c\n+++ b/system/runstate.c\n@@ -61,6 +61,8 @@\n #include \"system/confidential-guest-support.h\"\n #include \"system/system.h\"\n #include \"system/tpm.h\"\n+#include \"ui/console.h\"\n+\n #include \"trace.h\"\n \n static NotifierList exit_notifiers =\n@@ -1044,5 +1046,8 @@ void qemu_cleanup(int status)\n monitor_cleanup();\n qemu_chr_cleanup();\n user_creatable_cleanup();\n+#ifdef CONFIG_VNC\n+ vnc_cleanup();\n+#endif\n /* TODO: unref root container, check all devices are ok */\n }\ndiff --git a/ui/vnc.c b/ui/vnc.c\nindex 1c649e7bccf..d65153a5001 100644\n--- a/ui/vnc.c\n+++ b/ui/vnc.c\n@@ -3473,8 +3473,13 @@ VncDisplay *vnc_display_new(const char *id, Error **errp)\n \n static void vnc_display_close(VncDisplay *vd)\n {\n+ VncState *vs;\n+\n assert(vd);\n \n+ QTAILQ_FOREACH(vs, &vd->clients, next) {\n+ vnc_disconnect_start(vs);\n+ }\n if (vd->listener) {\n qio_net_listener_disconnect(vd->listener);\n object_unref(OBJECT(vd->listener));\n@@ -3515,10 +3520,12 @@ void vnc_display_free(VncDisplay *vd)\n return;\n }\n \n- assert(QTAILQ_EMPTY(&vd->clients));\n+ vnc_display_close(vd);\n+ while (!QTAILQ_EMPTY(&vd->clients)) {\n+ main_loop_wait(false);\n+ }\n \n vnc_stop_worker_thread(vd);\n- vnc_display_close(vd);\n unregister_displaychangelistener(&vd->dcl);\n qkbd_state_free(vd->kbd);\n qemu_del_vm_change_state_handler(vd->vmstate_handler_entry);\n@@ -4348,6 +4355,15 @@ int vnc_init_func(void *opaque, QemuOpts *opts, Error **errp)\n return vnc_display_new(id, errp) != NULL ? 0 : -1;\n }\n \n+void vnc_cleanup(void)\n+{\n+ VncDisplay *vd, *vd_next;\n+\n+ QTAILQ_FOREACH_SAFE(vd, &vnc_displays, next, vd_next) {\n+ vnc_display_free(vd);\n+ }\n+}\n+\n static void vnc_register_config(void)\n {\n qemu_add_opts(&qemu_vnc_opts);\n", "prefixes": [ "v3", "17/26" ] }