From nobody Wed Feb 18 20:07:56 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass header.i=dmitry.osipenko@collabora.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; arc=pass (i=1 dmarc=pass fromdomain=collabora.com); dmarc=pass(p=none dis=none) header.from=collabora.com ARC-Seal: i=2; a=rsa-sha256; t=1771365168; cv=pass; d=zohomail.com; s=zohoarc; b=Zw+5UJvczipMTrKAwbz7yRz/GFNtdmHkhzrNMF3lK3Uq3+ix2CloKfcVFIPn+xG7p2TfWhJdN+lwZSKEEEqaV2hHyj+fAy84GamAG9APs3gmmG56Q4HOaoPLHpomraJ5ydA5RVVaH1c4Vb9PG+2yrpru9/MiMR1rqpdcsqCiTiQ= ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1771365168; h=Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:Subject:To:To:Message-Id:Reply-To; bh=m2atH/1ReVFvc2mpUW0OG4VIKhYkpV3eeI5xUGoYe60=; b=Lafrg5BVPq+96E8XSCkgjKb4C/o9UJpWwzlWV0Ys+UaBEddntyNrNFyTOO9dEfCQXeW0G9azuAaPGrRcp55DNmFM9enefiACkz9hvl3gtIJVsviHvVytRPA7KHjpnEUzHvSoCwsYSLDzD+HHT27IA00dB0jyJQOqkvggd6RENUs= ARC-Authentication-Results: i=2; mx.zohomail.com; dkim=pass header.i=dmitry.osipenko@collabora.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; arc=pass (i=1 dmarc=pass fromdomain=collabora.com); dmarc=pass header.from= (p=none dis=none) Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1771365168803296.7779251347913; Tue, 17 Feb 2026 13:52:48 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1vsSzK-0008Jw-En; Tue, 17 Feb 2026 16:52:12 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1vsSzD-0008CP-5f for qemu-devel@nongnu.org; Tue, 17 Feb 2026 16:52:03 -0500 Received: from sender4-pp-f112.zoho.com ([136.143.188.112]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1vsSzB-0001Om-L2 for qemu-devel@nongnu.org; Tue, 17 Feb 2026 16:52:02 -0500 Received: by mx.zohomail.com with SMTPS id 1771365105744235.661391243264; Tue, 17 Feb 2026 13:51:45 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1771365108; cv=none; d=zohomail.com; s=zohoarc; b=UunZLyU4WkyU33ySKWDRuJs27rlxNYznnhMsQ28wyKiBz1EUQXsqNJb7hqUslKOib9I3a2yqE6ZLTY1Ca/LICYLFJxd3Hn+g+AJQKsytfGrHkeAMITqBfCuSUTt428Qt98+CVsT/eb/sg9ObOZZetS6RYbIrqFxBwbvEw8bM/Wc= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1771365108; h=Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:MIME-Version:Message-ID:References:Subject:Subject:To:To:Message-Id:Reply-To; bh=m2atH/1ReVFvc2mpUW0OG4VIKhYkpV3eeI5xUGoYe60=; b=UeF4GCfnAhgMY9x82qimxnkbofH3h2QZu9e/gTWECYX7SRtv/GiXNdXcHkmJA348azvOJmlLQj5WgK01QTWt4wPDJoKJv2CYDrT1cG/Y01xOI4V+qK906zehbd0966GtuvIeBCvXWbR9WOTqvYDFsTfn22EgC3mMe1s5/MoLQNo= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass header.i=collabora.com; spf=pass smtp.mailfrom=dmitry.osipenko@collabora.com; dmarc=pass header.from= DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; t=1771365108; s=zohomail; d=collabora.com; i=dmitry.osipenko@collabora.com; h=From:From:To:To:Cc:Cc:Subject:Subject:Date:Date:Message-ID:In-Reply-To:References:MIME-Version:Content-Transfer-Encoding:Message-Id:Reply-To; bh=m2atH/1ReVFvc2mpUW0OG4VIKhYkpV3eeI5xUGoYe60=; b=Bnsu5N1B1YNXPB+ewwZHKR7YgcJD21j7PsRphX1l9wDTeB8ZPbLzTZN/n7sjESMd IS39rCfWHT3ltvi80dl2QSBFaN2Db7rYGbkH7Uqt5AWDYI2NBCZ9sm1urERNn+wmxGI sABG4afxdR8FTdM6/fCUTrAR5JomxvuKDFgcQFa0= From: Dmitry Osipenko To: Akihiko Odaki , Huang Rui , =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Gerd Hoffmann , =?UTF-8?q?Alex=20Benn=C3=A9e?= , Pierre-Eric Pelloux-Prayer , "Michael S . Tsirkin" , Paolo Bonzini , Yiwei Zhang , Sergio Lopez Pascual Cc: Gert Wollny , qemu-devel@nongnu.org, Gurchetan Singh , Alyssa Ross , =?UTF-8?q?Roger=20Pau=20Monn=C3=A9?= , Alex Deucher , Stefano Stabellini , =?UTF-8?q?Christian=20K=C3=B6nig?= , Xenia Ragiadakou , Honglei Huang , Julia Zhang , Chen Jiqian , Rob Clark , Robert Beckett Subject: [PATCH v18 05/19] ui/gtk-egl: Unset context after GL operations Date: Wed, 18 Feb 2026 00:49:14 +0300 Message-ID: <20260217214928.2970885-6-dmitry.osipenko@collabora.com> X-Mailer: git-send-email 2.52.0 In-Reply-To: <20260217214928.2970885-1-dmitry.osipenko@collabora.com> References: <20260217214928.2970885-1-dmitry.osipenko@collabora.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-ZohoMailClient: External Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=136.143.188.112; envelope-from=dmitry.osipenko@collabora.com; helo=sender4-pp-f112.zoho.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham 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 List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity dmitry.osipenko@collabora.com) X-ZM-MESSAGEID: 1771365171279154100 Content-Type: text/plain; charset="utf-8" VirtIO-GPU commands may be processed outside of main-loop, from a CPU thread. This results in GL context switch failure because context is held by main-loop thread when GL is invoked from CPU thread. Always release GL context after performing GL operations such that other threads could take over the context. Signed-off-by: Dmitry Osipenko --- ui/gtk-egl.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/ui/gtk-egl.c b/ui/gtk-egl.c index 0dbb429958e5..157b000f45fb 100644 --- a/ui/gtk-egl.c +++ b/ui/gtk-egl.c @@ -39,6 +39,8 @@ static void gtk_egl_set_scanout_mode(VirtualConsole *vc, = bool scanout) surface_gl_destroy_texture(vc->gfx.gls, vc->gfx.ds); surface_gl_create_texture(vc->gfx.gls, vc->gfx.ds); } + eglMakeCurrent(qemu_egl_display, EGL_NO_SURFACE, + EGL_NO_SURFACE, EGL_NO_CONTEXT); } } =20 @@ -125,6 +127,9 @@ void gd_egl_draw(VirtualConsole *vc) surface_height(vc->gfx.ds)); =20 glFlush(); + + eglMakeCurrent(qemu_egl_display, EGL_NO_SURFACE, + EGL_NO_SURFACE, EGL_NO_CONTEXT); } } =20 @@ -261,6 +266,9 @@ void gd_egl_scanout_texture(DisplayChangeListener *dcl, gtk_egl_set_scanout_mode(vc, true); egl_fb_setup_for_tex(&vc->gfx.guest_fb, backing_width, backing_height, backing_id, false); + + eglMakeCurrent(qemu_egl_display, EGL_NO_SURFACE, + EGL_NO_SURFACE, EGL_NO_CONTEXT); } =20 void gd_egl_scanout_dmabuf(DisplayChangeListener *dcl, @@ -277,6 +285,8 @@ void gd_egl_scanout_dmabuf(DisplayChangeListener *dcl, egl_dmabuf_import_texture(dmabuf); texture =3D qemu_dmabuf_get_texture(dmabuf); if (!texture) { + eglMakeCurrent(qemu_egl_display, EGL_NO_SURFACE, + EGL_NO_SURFACE, EGL_NO_CONTEXT); return; } =20 @@ -294,6 +304,9 @@ void gd_egl_scanout_dmabuf(DisplayChangeListener *dcl, if (qemu_dmabuf_get_allow_fences(dmabuf)) { vc->gfx.guest_fb.dmabuf =3D dmabuf; } + + eglMakeCurrent(qemu_egl_display, EGL_NO_SURFACE, + EGL_NO_SURFACE, EGL_NO_CONTEXT); #endif } =20 @@ -397,6 +410,9 @@ void gd_egl_scanout_flush(DisplayChangeListener *dcl, #endif =20 eglSwapBuffers(qemu_egl_display, vc->gfx.esurface); + + eglMakeCurrent(qemu_egl_display, EGL_NO_SURFACE, + EGL_NO_SURFACE, EGL_NO_CONTEXT); } =20 void gd_egl_flush(DisplayChangeListener *dcl, --=20 2.52.0