From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id BF486C369DC for ; Tue, 29 Apr 2025 21:27:43 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1u9sTv-0004k0-Vo; Tue, 29 Apr 2025 17:27:12 -0400 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 1u9sTl-0004if-23; Tue, 29 Apr 2025 17:27:01 -0400 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 1u9sTi-0007Vd-Rv; Tue, 29 Apr 2025 17:27:00 -0400 ARC-Seal: i=1; a=rsa-sha256; t=1745961996; cv=none; d=zohomail.com; s=zohoarc; b=eB4VYw7y972t0cvMk/NfEmef4dGf7lGFGv1dFwfR0goulyQFgC9TzhFXvzXS/4WIDVR2MXvGFdjy4j3Dupkxu/gcJEYTTeNkngusoDB9Lii+86VVIkpYX9L3i5Bse4NoAp9N3WBK3D2vuV6BepDdhBhwM93pKMQDZh/m6okHRs8= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1745961996; h=Content-Type: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=n5glU0FlvTlvVa30Iq18L5A5JJTQ2PT2eof4gDYLDqU=; b=AqZn+px0cWs/6H0aH6bHnVyr4xzqWfibHVYKsiWO4A9ZfKbCQ7XW8fxraJ5KQSQWIvrqkP3hUp9zy3PqDL+U+Zi5rHyz+BIMrsTG+lxJB0kx+bP7toOa3FsAJ4TulyCKzr/kdz45d9ap9clE/hF3uyFjyN2quSRskS/WTZyWVFA= 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=1745961996; s=zohomail; d=collabora.com; i=dmitry.osipenko@collabora.com; h=Message-ID:Date:Date:MIME-Version:Subject:Subject:To:To:Cc:Cc:References:From:From:In-Reply-To:Content-Type:Content-Transfer-Encoding:Message-Id:Reply-To; bh=n5glU0FlvTlvVa30Iq18L5A5JJTQ2PT2eof4gDYLDqU=; b=dv5MyZhEbExyxpNjqCIvy0Q1WUDoleraMk99RcWtNBSWTI6bJGkJJiyTCpcb1+Q2 ost9kdmFhk58cw1tmBXm4X5J6DfBCZ73tbJIp2HnkSKdbf+hmJ/AAngwpwo4V5RmxPU GyAD8ZFzyWBKGjXoWF4GHuNFmvkb/0QOKjqcO2uE= Received: by mx.zohomail.com with SMTPS id 1745961995758660.1143623261877; Tue, 29 Apr 2025 14:26:35 -0700 (PDT) Message-ID: <33ae8cd5-cc5c-4bfd-9c0b-dd71b80dfc0b@collabora.com> Date: Wed, 30 Apr 2025 00:26:30 +0300 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 8/9] virtio-gpu: fix hang under TCG when unmapping blob To: =?UTF-8?Q?Alex_Benn=C3=A9e?= Cc: qemu-devel@nongnu.org, Akihiko Odaki , Thomas Huth , Alexandre Iooss , "Michael S. Tsirkin" , Paolo Bonzini , David Hildenbrand , Pierrick Bouvier , qemu-arm@nongnu.org, =?UTF-8?Q?Philippe_Mathieu-Daud=C3=A9?= , Peter Xu , Peter Maydell , Mahmoud Mandour , Manos Pitsidianakis , qemu-stable@nongnu.org References: <20250428125918.449346-1-alex.bennee@linaro.org> <20250428125918.449346-9-alex.bennee@linaro.org> <8b123991-21f2-47b5-851d-6b53fbfaa691@collabora.com> <87o6we3bto.fsf@draig.linaro.org> From: Dmitry Osipenko Content-Language: en-US In-Reply-To: <87o6we3bto.fsf@draig.linaro.org> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-ZohoMailClient: External 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_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_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: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org On 4/30/25 00:19, Alex Bennée wrote: >> This change makes QEMU to crash. > What is your command line to cause the crash? I applied this patch on top of native context v11, ran AMD nctx and got a crash on SDDM startup. (gdb) bt #0 0x00007ffff5411b54 in __pthread_kill_implementation () at /lib64/libc.so.6 #1 0x00007ffff53b8f9e in raise () at /lib64/libc.so.6 #2 0x00007ffff53a0942 in abort () at /lib64/libc.so.6 #3 0x00007ffff6cbf18c in g_assertion_message[cold] () at /lib64/libglib-2.0.so.0 #4 0x00007ffff6d2ea07 in g_assertion_message_expr () at /lib64/libglib-2.0.so.0 #5 0x0000555555a42820 in object_finalize (data=0x555557c9d290) at ../qom/object.c:732 #6 object_unref (objptr=0x555557c9d290) at ../qom/object.c:1231 #7 0x00005555559f3df3 in memory_region_unref (mr=) at ../system/memory.c:1854 #8 0x0000555555a003a7 in phys_section_destroy (mr=0x555559ef5b60) at ../system/physmem.c:1035 #9 phys_sections_free (map=0x555559c2dd80) at ../system/physmem.c:1048 #10 address_space_dispatch_free (d=0x555559c2dd70) at ../system/physmem.c:2692 #11 0x00005555559f1d33 in flatview_destroy (view=0x55555a54a720) at ../system/memory.c:295 #12 0x0000555555c278cf in call_rcu_thread (opaque=opaque@entry=0x0) at ../util/rcu.c:301 #13 0x0000555555c1cc68 in qemu_thread_start (args=0x555557993d30) at ../util/qemu-thread-posix.c:541 #14 0x00007ffff540fba8 in start_thread () at /lib64/libc.so.6 #15 0x00007ffff5493b8c in __clone3 () at /lib64/libc.so.6 -- Best regards, Dmitry