From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from pandora.armlinux.org.uk (pandora.armlinux.org.uk [78.32.30.218]) (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 58CB0335081 for ; Wed, 12 Nov 2025 12:56:28 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=78.32.30.218 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1762952190; cv=none; b=P52oLTks1cA0z4Iyc/y7IlZlDw+cmn/jsn0WvyIRszzN9ZUtFs2ZAGR3Pm4zsnoS9Tq1bfnmnTyPQw0uJzE5ddT/MklQQILimSAobUTy8NEjMHgTxKBZiHmRJsuRjhrL7H6W/VUIFasxUUZUjfVP/eqivr6W3R1msCP9tl84kZU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1762952190; c=relaxed/simple; bh=rfZ47164vUAnuxaU/M/p7rQIXKJ9sbj0HOxvYJGXYEQ=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=FJt76dXIi5HpkFwpMNXVxj5M+0Gc2AL8KA44lSEjLapL1OSVny1Xp36F/xZOE9oFCPP/7tcozee2FzoEQCDoY1v4tPp1botArLM9012eGshO3/mYltdVLlQQyzxr2C/0SZYYMViKu8QwHxzFfupqEcjo/i9DF5BAcQQA8/CI7GM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=armlinux.org.uk; spf=none smtp.mailfrom=armlinux.org.uk; dkim=pass (2048-bit key) header.d=armlinux.org.uk header.i=@armlinux.org.uk header.b=TIiOslFf; arc=none smtp.client-ip=78.32.30.218 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=armlinux.org.uk Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=armlinux.org.uk Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=armlinux.org.uk header.i=@armlinux.org.uk header.b="TIiOslFf" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=armlinux.org.uk; s=pandora-2019; h=Sender:In-Reply-To:Content-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id: List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=ovOaO7o5EVy31SCddS4vIZxUwqi/JxafOZ5Xize7kHY=; b=TIiOslFfi3mXLkrInndtcQ3PTG e7R9cAW4DEmjWFydFzK+Z5XsyNBvuoAF7Ifu16xV8MgUwZerp7Zvpr3iQE5Ikm4Jpigrh8PcP2/8R YaNVfbJDPyPCu/J6pAqK4O9qJk/+4oNyIWri3FIXrcGzYbf1flhbyfxChW4POjc03dX0jJSlkGiKp yEbuScVgfoVReSWjTtoMa88gutdmKCoEvOjHB8NLc3Xd0gWqPz+WexiKxziYtX8zpRaR5hf6tH9nq jzUVzlcnLlAknBhe70ApwVbBJ9lCdM5C5xL+RZqqOVVJG8J/wGNytjd6ejm2csW2OSG/8fl5VrqiH zvCTS/8g==; Received: from shell.armlinux.org.uk ([fd8f:7570:feb6:1:5054:ff:fe00:4ec]:35520) by pandora.armlinux.org.uk with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.98.2) (envelope-from ) id 1vJAOe-000000003vM-1L2V; Wed, 12 Nov 2025 12:56:24 +0000 Received: from linux by shell.armlinux.org.uk with local (Exim 4.98.2) (envelope-from ) id 1vJAOc-000000003th-1Abs; Wed, 12 Nov 2025 12:56:22 +0000 Date: Wed, 12 Nov 2025 12:56:22 +0000 From: "Russell King (Oracle)" To: Kieran Bingham Cc: Oleksij Rempel , Andrew Lunn , Laurent Pinchart , devicetree@vger.kernel.org, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org, Daniel Scally , Stefan Klug , Conor Dooley , Fabio Estevam , Krzysztof Kozlowski , Pengutronix Kernel Team , Rob Herring , Sascha Hauer , Shawn Guo Subject: Re: [PATCH] arm64: dts: imx8mp-debix-model-a: Disable EEE for 1000T Message-ID: References: <20251026122905.29028-1-laurent.pinchart@ideasonboard.com> <176295131007.567526.3395425614344577792@ping.linuxembedded.co.uk> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <176295131007.567526.3395425614344577792@ping.linuxembedded.co.uk> Sender: Russell King (Oracle) On Wed, Nov 12, 2025 at 12:41:50PM +0000, Kieran Bingham wrote: > Perhaps further complicating matters. > > I have a Debix Model A as well ... I'm in a different office to Laurent > - and I believe EEE is enabled on my board/network switch. > > I do not get an interrupt storm. > > I'm not sure how this helps yet, - I don't know what to debug as I can't > reproduce the issue! > > I can provide remote access to the board with ssh if that helps anyone > who wants to look at something specific about my setup or run anything > if anyone has ideas of what to check my side. > > Perhaps we can find some subtle difference between a working case and a > non-working case... Thanks, that's interesting. I guess the next steps would be to try and work out what's different between your two setups. - same board revision? - same firmware/ATF? - same kernel/modules? - same type of link partner? (I suspect, given the cpu-pd-wait interaction, isn't the problem.) -- RMK's Patch system: https://www.armlinux.org.uk/developer/patches/ FTTP is here! 80Mbps down 10Mbps up. Decent connectivity at last!