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 827A61F873D; Tue, 18 Mar 2025 09:10:39 +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=1742289039; cv=none; b=RI5Rr39wdm3I41IfIaPViaE0aJ326J/QAIjkwZ2T88p9saMuLMfsDkaKFiqt4uoQjSHVd/wwLmmTQC3TsRan+JIYyAYP0brJS+mqiytqdFMJvUNHdI0/oFqaBUTQKQanSNYsAiaassdoQAWNnVc51tcC0qkIXjsK4t9bRxczwhs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1742289039; c=relaxed/simple; bh=x2Oo1KpRFIngVaUsqEsq3GfsO/Lt5V1TiLtFXCIoJv8=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=IS6JR/xGJeaUXoyhqlgC42TiVyuI4tXUQk8NG6xi8H/oaM8nppYV9jNSUAO3kpYGhpd3B5ubAdD4TojupnnJdloA5c0An7JxFhXTVDX3a97855J8cINy+z87nVXFzIrcASnHhVig8eOc5j37GxrlcqBn2FUIe7YyyL8WNJjtK5k= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=bRujVJOy; 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="bRujVJOy" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 09C0EC4CEDD; Tue, 18 Mar 2025 09:10:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1742289038; bh=x2Oo1KpRFIngVaUsqEsq3GfsO/Lt5V1TiLtFXCIoJv8=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=bRujVJOystzhTifwpMiIEc1h8J46X2M+K2NYXSq4iTppqb0CMHyaAD4FMhMTJsqkA XYvCBk+cFp23oxGtQ1okNKa4QPV09VXmS32TckNjwvJ+X3kIdiroeoaIr03Q7C89S4 +gRwpsuG6AynGK2R4D9fyuvhdImk8g3lyjiIefAJXXp2U49lBO53OSE46zF09TIjRS 7NdoMVZH+6aESaWKGEqEdg8RIPpQBkeB7UQBeHyP6VS3g0VHPhLWNaN+QRNXwO3HvL 9SXIxKerb5TE4vb+uzbAPNmwowZg1ouyk+TTB8fwe8DDTJ3pNTVQfFbriHyFJZZkUn tRMWH6HFcTChw== Date: Tue, 18 Mar 2025 10:10:33 +0100 From: Niklas Cassel To: Eric Cc: Hans de Goede , Salvatore Bonaccorso , Mario Limonciello , Christoph Hellwig , Mika Westerberg , Damien Le Moal , Jian-Hong Pan , regressions@lists.linux.dev, linux-kernel@vger.kernel.org, stable@vger.kernel.org, linux-ide@vger.kernel.org, Dieter Mummenschanz Subject: Re: Regression from 7627a0edef54 ("ata: ahci: Drop low power policy board type") on reboot (but not cold boot) Message-ID: References: <383d5740-7740-4051-b39a-b8c74b035ec2@redhat.com> <9ac6e1ab-f2af-4bff-9d50-24df68ca1bb9@redhat.com> <6d125c69-35b2-45b5-9790-33f3ea06f171@redhat.com> <06f76ca1-1a07-4df5-ba50-e36046f58d88@grabatoulnz.fr> <5fe0557a-b9ec-4600-a10f-20c494aa2339@grabatoulnz.fr> Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <5fe0557a-b9ec-4600-a10f-20c494aa2339@grabatoulnz.fr> Hello Eric, On Tue, Mar 18, 2025 at 01:04:48AM +0100, Eric wrote: > Hi Niklas, hi Hans, > > Le 17/03/2025 à 20:15, Eric a écrit : > > Hi Niklas, > > > > Le 17/03/2025 à 18:09, Niklas Cassel a écrit : > > > > > > I sent a patch that implements your original suggestion here: > > > https://lore.kernel.org/linux-ide/20250317170348.1748671-2-cassel@kernel.org/ > > > > > > > > > I forgot to add your Suggested-by tag. > > > If the patch solves Eric's problem, I could add the tag when applying. > > I'll report back when the kernel with your proposed patch is built and > > tested on my system. > > The test is a success as far as I am concerned. With this new patch, DIPM is > disabled on the Samsung SSD, but not the Maxtor disk on the same controller > : > > > (trixieUSB)eric@gwaihir:~$ sudo hdparm -I > /dev/disk/by-id/ata-Samsung_SSD_870_QVO_2TB_S5RPNF0T419459E | grep > "interface power management" >             Device-initiated interface power management > (trixieUSB)eric@gwaihir:~$ sudo hdparm -I > /dev/disk/by-id/ata-MAXTOR_STM3250310AS_6RY2WB82 | grep "interface power > management" >        *    Device-initiated interface power management > > > and the SSD is successfully detected at reboot by both the UEFI and the > linux kernel. Thank you for all your perseverance! Hopefully, your efforts will make sure that others with ATI AHCI do not encounter the same issue that you faced. Kind regards, Niklas