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 X-Spam-Level: X-Spam-Status: No, score=-0.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0647AC433DF for ; Fri, 22 May 2020 12:00:13 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id CC85E206C3 for ; Fri, 22 May 2020 12:00:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1590148812; bh=za+1x7fC+5cQVdg7KBn+1sPJn8MXsHpslPvJp9Y3ggs=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=LFF4tHDGqTKngNA63ch8GJuDdgYzlXWfjUqC1hUTnPNzky0B+aWe/1aB9bxcTRQrt IwHyeEEwZo3NsEgevErNwbDXJAPvtvYrr0RXYJpxr9q1Y/6uU/GJN3oGn001I2UH/x Ist2ps+m+63lHtyLDwMKKpC+DkB2Gq8SzcWh6Mq4= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728506AbgEVMAM (ORCPT ); Fri, 22 May 2020 08:00:12 -0400 Received: from mail.kernel.org ([198.145.29.99]:48844 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728409AbgEVMAM (ORCPT ); Fri, 22 May 2020 08:00:12 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 7AF10206B6; Fri, 22 May 2020 12:00:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1590148811; bh=za+1x7fC+5cQVdg7KBn+1sPJn8MXsHpslPvJp9Y3ggs=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=W5ep2rb8pfRdxwG35Hv38VKzEj2tsUyqLnIvp1cOF3Nj9UzTSI25jhq1WNP8ch3bk GkrBGbRr0s6BbAvuE9F7Fp8FQ9i+jxJ0hGJy9ExwvdHFy3WRHGmg1u7/vvi5PrOb+g 7L7QUCImxtM623tacD1UMPRKKtv53jU2F2Xo4+Kw= Date: Fri, 22 May 2020 14:00:09 +0200 From: Greg KH To: Dan Williams Cc: stable@vger.kernel.org, Oliver O'Halloran , Vishal Verma , Benjamin Herrenschmidt , Michael Ellerman , Paul Mackerras , Christoph Hellwig , Jeff Moyer , "Aneesh Kumar K.V" , linux-nvdimm@lists.01.org Subject: Re: [5.4-stable PATCH 0/7] libnvdimm: Cross-arch compatible namespace alignment Message-ID: <20200522120009.GA1456052@kroah.com> References: <159010426294.1062454.8853083370975871627.stgit@dwillia2-desk3.amr.corp.intel.com> <20200522115800.GA1451824@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200522115800.GA1451824@kroah.com> Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org On Fri, May 22, 2020 at 01:58:00PM +0200, Greg KH wrote: > On Thu, May 21, 2020 at 04:37:43PM -0700, Dan Williams wrote: > > Hello stable team, > > > > These patches have been shipping in mainline since v5.7-rc1 with no > > reported issues. They address long standing problems in libnvdimm's > > handling of namespace provisioning relative to alignment constraints > > including crashes trying to even load the driver on some PowerPC > > configurations. > > > > I did fold one build fix [1] into "libnvdimm/region: Introduce an 'align' > > attribute" so as to not convey the bisection breakage to -stable. > > > > Please consider them for v5.4-stable. They do pass the latest > > version of the ndctl unit tests. > > What about 5.6.y? Any user upgrading from 5.4-stable to 5.6-stable > would hit a regression, right? > > So can we get a series backported to 5.6.y as well? I need that before > I can take this series. Also, I really don't see the "bug" that this is fixing here. If this didn't work on PowerPC before, it can continue to just "not work" until 5.7, right? What problems with 5.4.y and 5.6.y is this series fixing that used to work before? thanks, greg k-h