From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; dkim=none Received: from metis.whiteo.stw.pengutronix.de (metis.whiteo.stw.pengutronix.de [IPv6:2a0a:edc0:2:b01:1d::104]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D08DB191 for ; Mon, 27 Nov 2023 03:36:14 -0800 (PST) Received: from drehscheibe.grey.stw.pengutronix.de ([2a0a:edc0:0:c01:1d::a2]) by metis.whiteo.stw.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1r7ZuO-0002fw-4d; Mon, 27 Nov 2023 12:36:12 +0100 Received: from [2a0a:edc0:2:b01:1d::c0] (helo=ptx.whiteo.stw.pengutronix.de) by drehscheibe.grey.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1r7ZuN-00BvkY-9x; Mon, 27 Nov 2023 12:36:11 +0100 Received: from ore by ptx.whiteo.stw.pengutronix.de with local (Exim 4.92) (envelope-from ) id 1r7ZuN-0045L0-72; Mon, 27 Nov 2023 12:36:11 +0100 Date: Mon, 27 Nov 2023 12:36:11 +0100 From: Oleksij Rempel To: 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, =?utf-8?B?U8O4cmVu?= Andersen Subject: Re: [PATCH v1 0/3] introduce priority-based shutdown support Message-ID: <20231127113611.GD877872@pengutronix.de> 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> Precedence: bulk X-Mailing-List: linux-mmc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: X-Sent-From: Pengutronix Hildesheim X-URL: http://www.pengutronix.de/ X-Accept-Language: de,en X-Accept-Content-Type: text/plain User-Agent: Mutt/1.10.1 (2018-07-13) X-SA-Exim-Connect-IP: 2a0a:edc0:0:c01:1d::a2 X-SA-Exim-Mail-From: ore@pengutronix.de X-SA-Exim-Scanned: No (on metis.whiteo.stw.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-mmc@vger.kernel.org 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. -- Pengutronix e.K. | | Steuerwalder Str. 21 | http://www.pengutronix.de/ | 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |