From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id F2385C10F04 for ; Thu, 30 Nov 2023 21:59:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1377080AbjK3V72 (ORCPT ); Thu, 30 Nov 2023 16:59:28 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48786 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1377044AbjK3V71 (ORCPT ); Thu, 30 Nov 2023 16:59:27 -0500 Received: from mail11.truemail.it (mail11.truemail.it [217.194.8.81]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 64331D48; Thu, 30 Nov 2023 13:59:31 -0800 (PST) Received: from gaggiata.pivistrello.it (93-49-2-63.ip317.fastwebnet.it [93.49.2.63]) by mail11.truemail.it (Postfix) with ESMTPA id C664E1F8C9; Thu, 30 Nov 2023 22:59:27 +0100 (CET) Received: from livingston (unknown [192.168.42.11]) by gaggiata.pivistrello.it (Postfix) with ESMTP id 15BA07F848; Thu, 30 Nov 2023 22:59:10 +0100 (CET) Received: from pivi by livingston with local (Exim 4.96) (envelope-from ) id 1r8p3t-000149-2p; Thu, 30 Nov 2023 22:59:09 +0100 Date: Thu, 30 Nov 2023 22:59:09 +0100 From: Francesco Dolcini To: Oleksij Rempel , Christian Loehle Cc: Greg Kroah-Hartman , Ulf Hansson , "Rafael J. Wysocki" , linux-pm@vger.kernel.org, linux-mmc@vger.kernel.org, linux-kernel@vger.kernel.org, Mark Brown , kernel@pengutronix.de, =?iso-8859-1?Q?S=F8ren?= Andersen Subject: Re: [PATCH v1 0/3] introduce priority-based shutdown support Message-ID: References: <2023112458-stature-commuting-c66f@gregkh> <2023112435-dazzler-crisped-04a6@gregkh> <20231124163234.GC819414@pengutronix.de> <2023112453-flagstick-bullring-8511@gregkh> <20231124185725.GA872366@pengutronix.de> <2023112520-paper-image-ef5d@gregkh> <20231125085038.GA877872@pengutronix.de> <20231127113611.GD877872@pengutronix.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20231127113611.GD877872@pengutronix.de> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello all, On Mon, Nov 27, 2023 at 12:36:11PM +0100, Oleksij Rempel wrote: > On Mon, Nov 27, 2023 at 10:13:49AM +0000, Christian Loehle wrote: > > > Same problem was seen not only in automotive devices, but also in > > > industrial or agricultural. With other words, it is important enough to bring > > > some kind of solution mainline. > > > > > > > IMO that is a serious problem with the used storage / eMMC in that case and it > > is not suitable for industrial/automotive uses? > > Any industrial/automotive-suitable storage device should detect under-voltage and > > just treat it as a power-down/loss, and while that isn't nice for the storage device, > > it really shouldn't be able to brick a device (within <1M cycles anyway). > > What does the storage module vendor say about this? > > Good question. I do not have insights ATM. I'll forward it. >From personal experience I can tell that bricked eMMC devices happen because of eMMC controller firmware bugs. You might find some recently committed quirk on this regard. Waiting for any additional details you might be able to find, given my past experience I would agree with what Christian wrote. Francesco