From mboxrd@z Thu Jan 1 00:00:00 1970 From: Boris Brezillon Subject: Re: Race to power off harming SATA SSDs Date: Mon, 8 May 2017 13:50:05 +0200 Message-ID: <20170508135005.0b9b200b@bbrezillon> References: <20170410232118.GA4816@khazad-dum.debian.net> <20170410235206.GA28603@wtj.duckdns.org> <20170507204007.GA25628@atrey.karlin.mff.cuni.cz> <1494228094.6528.14.camel@infradead.org> <1494231215.6528.22.camel@infradead.org> <1494233673.6528.28.camel@infradead.org> <7ee84982-cfad-94d7-4e22-4edbeb852b32@redhat.com> <1494238390.6528.42.camel@infradead.org> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Return-path: Received: from mail.free-electrons.com ([62.4.15.54]:60317 "EHLO mail.free-electrons.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752942AbdEHLuI (ORCPT ); Mon, 8 May 2017 07:50:08 -0400 In-Reply-To: <1494238390.6528.42.camel@infradead.org> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: David Woodhouse Cc: Hans de Goede , Ricard Wanderlof , Pavel Machek , Tejun Heo , linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org, linux-ide@vger.kernel.org, linux-mtd@lists.infradead.org, Henrique de Moraes Holschuh On Mon, 08 May 2017 11:13:10 +0100 David Woodhouse wrote: > On Mon, 2017-05-08 at 11:09 +0200, Hans de Goede wrote: > > You're forgetting that the SSD itself (this thread is about SSDs) also has > > a major software component which is doing housekeeping all the time, so even > > if the main CPU gets reset the SSD's controller may still happily be erasing > > blocks. > > We're not really talking about SSDs at all any more; we're talking > about real flash with real maintainable software. It's probably a good sign that this new discussion should take place in a different thread :-).