From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 3B86A1862 for ; Wed, 7 May 2025 08:56:19 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1746608180; cv=none; b=skV5RRg73VHcRIY1uyWiv8m5UNJFurXS37Qv0Ol3vpCvEzWovn2eaoj9XCpJ++Fb6Pc1tN5GnhIkZZDLx90MAYl8bht/+j0x9QaNJYTw+GmllJ1TTEoMfkslEQfA99yYZPu+VVP8zZ29kasRW7eOfMowhjMQxMN1VNV6jVpfa2I= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1746608180; c=relaxed/simple; bh=Ttinqa4vvIroW6fMCi8q0sLxGxxlVLjn1lF3+rwz+2I=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=WbTRcqydEQCqlOkCcBX0I/ejZ7c0GY0QAJChYvKdu0pfwkrr2hqk/oe6p31Nsg+WQ05JEoOJIs/9zfcyiG4642BROTslYRO5+2QeJ8xfnw0JWyXk7Nzh2JXoADAW9aRnh4qVmu1qJv/WvvZlks3Zuq4HjENvF0tyVcteO9+3rqo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=CQtCw17l; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="CQtCw17l" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 472C5C4CEE7; Wed, 7 May 2025 08:56:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1746608179; bh=Ttinqa4vvIroW6fMCi8q0sLxGxxlVLjn1lF3+rwz+2I=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=CQtCw17l3+1251gmA0lGhAV4qeD7CrVAp/Kbw+6+Tf77HsoxN37cqfKyVkaIHuVJb piHTpj3en8KPVhh3ZWWpb0LK5fAQql8Foi4acBXrcug5VNXdYKJ6FWoAo8/2IHqdCX srelUzGpQaNCdBkvkja652jB+zuWzdak0D8eRuuRy6UjVqk5jPRVn6yHANj0p01/Ie k353dFZjZs2Wao+1Tn7o9RFRWbiHW652UNvv4mwd8BlOWyYIAGBx89k8hl+vLosiV3 sgCC6Bo4UYukIasQ1SNfmW/+6NCqn+EBp0xROPJpyME1AIc3It7f/w+WJRi44M158T 4MCjMXAHpG+IA== Message-ID: Date: Wed, 7 May 2025 17:55:08 +0900 Precedence: bulk X-Mailing-List: linux-ide@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v4] ata: libata: disable LPM for WDC WD20EFAX-68FB5N0 hard drives To: Mikko Juhani Korhonen , Niklas Cassel Cc: Ioannis Barkas , linux-ide@vger.kernel.org, Niklas Cassel References: <88a6fb5f-dc85-41e0-a65d-92704b4c8499@kernel.org> Content-Language: en-US From: Damien Le Moal Organization: Western Digital Research In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit On 5/6/25 2:09 AM, Mikko Juhani Korhonen wrote: > ma 5.5.2025 klo 18.37 Niklas Cassel (cassel@kernel.org) kirjoitti: > >> On Mon, May 05, 2025 at 10:58:22AM +0300, Mikko Juhani Korhonen wrote: >>>>> On 5/1/25 05:36, Ioannis Barkas wrote: >>>>>> It would be better to have more details on this since only the 2TB >>>>>> model is targeted. >>> I have two WD20EFAX-68FB5N0 and both behave consistently, unusable >>> from 6.9.0 on as they just keep resetting the SATA link , but they >>> have worked flawlessly with 6.8.x for a year and also now with the >>> quirk applied. >>> I have also tested a different WDC model with med_power_with_dipm on >>> the same SATA port and there are no problems. >>> But after you guys got suspicious I found there is in fact a SATA port >>> on my motherboard where the WD20EFAX-68FB5N0 works with LPM on >> This motherboard looks to be AMD chipset, so I assume AMD AHCI controller. >> >> Could you send the output of: >> $ lspci -nn | grep -E "SATA|AHCI" > > mjkorhon@taavi:~$ sudo lspci -nn | grep -E "SATA|AHCI" > 01:00.1 SATA controller [0106]: Advanced Micro Devices, Inc. [AMD] 500 > Series Chipset SATA Controller [1022:43eb] Mikko, Can you share a dmesg output for the good case with 6.8.x kernel ? We would like to see differences with the non-working case. -- Damien Le Moal Western Digital Research