From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from h5.fbrelay.privateemail.com (h5.fbrelay.privateemail.com [162.0.218.228]) (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 C328031771E for ; Mon, 9 Feb 2026 23:05:58 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=162.0.218.228 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770678359; cv=none; b=qcqvXsPbPbv/aWHmPIwAJ3Hn4O3GwgZdo5NfZ0Nj184rSNhSMTygzJ+26/vWJS4fW6WmhDcxbmlvJKg+TrNQCYJvjT3AqOANsSNzDLJHP0KGnndcDiX0pmXyJmL+wKm7hcTNKROVe9LYcoa5wEwPHkDmk1xF76cjlrpqzACDfwk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770678359; c=relaxed/simple; bh=75paysqlWA+ETkDG9KUpagT3xjzZS+tGIYcDULdaPwg=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=qiBKDQFm+LhZ7U/e5pY7qIRgo11sJkzA59ZiExU6SRIwgXIuCFgStCeSNjtX282hY1IPkk4aLwsLKtjkzTBXdbTLh/oYormJ8laamNz1e2MwX11KKZdedsn9Znv7dd8JttG6u0MzbOeXLntz5TpVucA0t/Q1PPKe1DaVn/1/N6o= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=effective-light.com; spf=pass smtp.mailfrom=effective-light.com; arc=none smtp.client-ip=162.0.218.228 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=effective-light.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=effective-light.com Received: from MTA-06-4.privateemail.com (mta-06.privateemail.com [198.54.118.213]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by h5.fbrelay.privateemail.com (Postfix) with ESMTPSA id 4f90PB03Hvz2xfn for ; Mon, 9 Feb 2026 22:54:06 +0000 (UTC) Received: from hal-station (tor-exit.csail.mit.edu [128.31.0.13]) by mta-06.privateemail.com (Postfix) with ESMTPA id 4f90NS0WXBz3hhTH; Mon, 9 Feb 2026 17:53:27 -0500 (EST) Date: Mon, 9 Feb 2026 17:53:23 -0500 From: Hamza Mahfooz To: Christian =?iso-8859-1?Q?K=F6nig?= Cc: dri-devel@lists.freedesktop.org, Timur =?iso-8859-1?Q?Krist=F3f?= , Michel =?iso-8859-1?Q?D=E4nzer?= , Xaver Hugl , Harry Wentland , Leo Li , Rodrigo Siqueira , Alex Deucher , David Airlie , Simona Vetter , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , Kenneth Feng , Ivan Lipski , Alex Hung , Tom Chung , Melissa Wen , Michel =?iso-8859-1?Q?D=E4nzer?= , Fangzhi Zuo , amd-gfx@lists.freedesktop.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v2 2/2] drm/amdgpu: implement page_flip_timeout() supporty Message-ID: References: <20260206235846.1019172-1-someguy@effective-light.com> <20260206235846.1019172-2-someguy@effective-light.com> <8c5ed6e7-e2e3-4aba-9b3c-bc1609765d14@amd.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <8c5ed6e7-e2e3-4aba-9b3c-bc1609765d14@amd.com> X-Rspamd-Queue-Id: 4f90PB03Hvz2xfn On Mon, Feb 09, 2026 at 10:36:23AM +0100, Christian König wrote: > Well that might work but is even worse than a GPU reset. > > Have you tried to just signal the page flip as done? > I have tried that actually and it didn't work in my case (outside of your contrived scenario [1], though forcing a full modeset should take care of that case regardless). Though, I strongly suspect a firmware hang with the issue that I'm seeing since I get DMCUB errors before the timeout. i.e.: amdgpu 0000:06:00.0: [drm] *ERROR* dc_dmub_srv_log_diagnostic_data: DMCUB error - collecting diagnostic data [...] amdgpu 0000:06:00.0: [drm] *ERROR* [CRTC:364:crtc-0] flip_done timed out [1] https://lore.kernel.org/r/30f2480d-016f-417e-9ddf-7805e4943e7b@amd.com/