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=-2.3 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,USER_AGENT_MUTT autolearn=ham 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 BEE15ECE561 for ; Mon, 24 Sep 2018 10:50:54 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 832C32086B for ; Mon, 24 Sep 2018 10:50:54 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 832C32086B Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=linuxfoundation.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728600AbeIXQwV (ORCPT ); Mon, 24 Sep 2018 12:52:21 -0400 Received: from mail.linuxfoundation.org ([140.211.169.12]:47784 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726154AbeIXQwV (ORCPT ); Mon, 24 Sep 2018 12:52:21 -0400 Received: from localhost (ip-213-127-77-73.ip.prioritytelecom.net [213.127.77.73]) by mail.linuxfoundation.org (Postfix) with ESMTPSA id 91FB9105A; Mon, 24 Sep 2018 10:50:49 +0000 (UTC) Date: Mon, 24 Sep 2018 12:50:47 +0200 From: Greg KH To: Richard Weinberger Cc: Lars Persson , linux-kernel@vger.kernel.org, stable@vger.kernel.org, Martinbayern@outlook.com Subject: Re: [PATCH 4.9 069/101] ubi: fastmap: Correctly handle interrupted erasures in EBA Message-ID: <20180924105047.GA16476@kroah.com> References: <20180701160757.138608453@linuxfoundation.org> <2076412.mQRaXglRsh@blindfold> <1657546.ePJIJPgWtA@blindfold> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1657546.ePJIJPgWtA@blindfold> User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Sep 24, 2018 at 08:32:12AM +0200, Richard Weinberger wrote: > Lars, > > Am Sonntag, 23. September 2018, 15:49:42 CEST schrieb Lars Persson: > > Hi Richard > > > > Sorry, I assumed this omission from -stable was a mistake. > > > > The timing for our boot increased from 45 seconds to 55 seconds on one > > chip and 42 seconds to 48 seconds on another chip. The regression was > > completely fixed by applying the extra patches. The way I see it the > > first patch is a significant slow-down so the second patch is required > > to restore performance. > > okay, this is not good. Let's put the performance patch also into -stable > to get rid of that regression. > Usually I'm rather conservative with adding non-trivial material to -stable. > As history has shown, Fastmap is special. ;-) > > Out of interest, what flashes are these? I'm interested in page vs. erase size. > Did you give UBIFS bulk-read try? > > Greg, I'll send another mail which will state what patches are needed. Thank you, as I am totally confused here... greg k-h