From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7499E6BFB8 for ; Tue, 7 May 2024 05:54:36 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=170.10.133.124 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715061278; cv=none; b=dBwxZL7Y/SH0OUO/88aMK52oXotJYiZvY2HFGoKUeWxx6FG3WIbKHZU8/cegJibDle8n0MOP++L2vYC39aDnUZ54SSVTCcJis2YLAHDEdfVgprwvlnvKm/Cf65hr6HPsDAakkjnKj6Z9If3WnkoezPu+NX2YxbykEJS/j3qILYA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715061278; c=relaxed/simple; bh=20gKwB9Y6Kzn276qfDDgtF9coeWsOEFWeBLJyVE9dWg=; h=MIME-Version:References:In-Reply-To:From:Date:Message-ID:Subject: To:Cc:Content-Type; b=TrYI/dLE3BO6EfXhSZ0HIbB7+5MjXk7Ln7ZYXESDj2O7ZmXwGC2VGyNYHlKk8N0mvpwJWfUrkPzF84QxEVRVIo/MMZV+4+ABmzb/10ccmmkfFmy/4dNKCYxDhDBHexqHWohWH8utZgjrVuo82k9ch63XrOV9WihsPWgHh73B7zI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=redhat.com; spf=pass smtp.mailfrom=redhat.com; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b=WvhtHqee; arc=none smtp.client-ip=170.10.133.124 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=redhat.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=redhat.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="WvhtHqee" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1715061275; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=20gKwB9Y6Kzn276qfDDgtF9coeWsOEFWeBLJyVE9dWg=; b=WvhtHqee2d74EDOkolfvUrijWhXUKOOVxyVfygjoON0E/k6LroZ55Gf36zw1fy9ZUhTs6V qVkw3+OdPZwsRVvlgT1UDMGFevUyAdPdHSaMi5KJFFdrbko9R0tqJE5SG0yDjHZzMV+Tk9 e3R6ZNC/UIZxQLIc2d9hSNQH56T+c4c= Received: from mail-pg1-f198.google.com (mail-pg1-f198.google.com [209.85.215.198]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-354-xA3m_X_dM8-JyjSjDlNVqw-1; Tue, 07 May 2024 01:54:33 -0400 X-MC-Unique: xA3m_X_dM8-JyjSjDlNVqw-1 Received: by mail-pg1-f198.google.com with SMTP id 41be03b00d2f7-61c6560f50bso2471373a12.3 for ; Mon, 06 May 2024 22:54:33 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1715061273; x=1715666073; h=content-transfer-encoding:cc:to:subject:message-id:date:from :in-reply-to:references:mime-version:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=20gKwB9Y6Kzn276qfDDgtF9coeWsOEFWeBLJyVE9dWg=; b=Rgc64I6zp5zyarxWyjYjjLpWMH2DhwEhwnpcFWfUHmIqtRnxoJqDIudxeRwRpmlGdu Cgffpzg93sW6VgrgXD/ruAJn65gHUboLNbBec1hNd+IAQoOJOeyGMJQ/OLlN8/Z9a8b4 aoKivJ/6sD+cUgSIRJ3BjpwlGnbJ9F7jKZitAMUCK+hTnhtVQBWgcML7aVIxIdChn1+u 8MsdtGccWdsaiXGeVmZdJ4rNrBPqWGB1+eFz8ikD9H4SEWWqHmEr6IUJ09rtOoqA6qn/ hYOGBQ1Qo9/OkIssm0IEIOM4s4nl/Ify0dlcvltT+u/ur9yRNzGZZ/8M7zL+3geb+qkI Fr6A== X-Forwarded-Encrypted: i=1; AJvYcCX+rVdpqZb5VbpSbnmJt09emgIKMMDEzyUe31Yo1rLCu+yehEyT5TbTBYmHbUKm6wPmqWUVH6Qy4iPSV8g4a52aoVCtQKVNfsn2x9wv X-Gm-Message-State: AOJu0YyFpCwuKNQRuQlpcpWXFFsWhn65+urs+zfn435894BS95F87sZg 218f42PEvkviFq2zdeYJUBpTe99vedsHNiDgHN/SFeUdu8Ozc9YK2DwuOES3jPgCceLN8Q61x6I IKsQJbjzh7i/yA/t/SDfGM8gfjQh7GCd6HaW11qpkp8+vGuGaAuezmmxHpcNnmcO7smt3mdAjjx 9AmZJfBAbfsr377OlGoX60W788EC/rtZf/nU8M X-Received: by 2002:a05:6a20:dd88:b0:1aa:590a:9668 with SMTP id kw8-20020a056a20dd8800b001aa590a9668mr9789611pzb.51.1715061272711; Mon, 06 May 2024 22:54:32 -0700 (PDT) X-Google-Smtp-Source: AGHT+IHoxUCyw3G7woiyN90q6fdiBQFxnnK13PtUXk31OQzkOeF3E8QTAUwWsRlM5FhBKV1dlaYhsPqjvs3jr7pn6iU= X-Received: by 2002:a05:6a20:dd88:b0:1aa:590a:9668 with SMTP id kw8-20020a056a20dd8800b001aa590a9668mr9789602pzb.51.1715061272390; Mon, 06 May 2024 22:54:32 -0700 (PDT) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 References: <20240502081641.457aa25f@gandalf.local.home> <20240504043957.417aa98c@rorschach.local.home> <20240506-cuddly-elated-agouti-be981d@houat> In-Reply-To: From: David Airlie Date: Tue, 7 May 2024 15:54:21 +1000 Message-ID: Subject: Re: [BUG][v6.9-rc6] Deadlock with: Revert "drm/qxl: simplify qxl_fence_wait" To: Linus Torvalds Cc: Maxime Ripard , Steven Rostedt , LKML , Alex Constantino , Timo Lindfors , Gerd Hoffmann , Maarten Lankhorst , Thomas Zimmermann , Daniel Vetter Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On Tue, May 7, 2024 at 6:29=E2=80=AFAM Linus Torvalds wrote: > > On Mon, 6 May 2024 at 05:46, Maxime Ripard wrote: > > > > It looks like qxl is not well maintained. Please send the revert, we'll > > merge it. > > I'll just do the revert and we don't have to do the round-trip > overhead (since we're already in rc7 and I hope to just do final next > weekend). I expec this will reintroduce the other problems that caused this change in the first place, but I think this should at least bring us back to regression equilibrium. I can't recommend anyone use qxl hw over virtio-gpu hw in their VMs, since virtio-gpu is actually hw designed for virt. Dave.