From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wm0-f71.google.com (mail-wm0-f71.google.com [74.125.82.71]) by kanga.kvack.org (Postfix) with ESMTP id 6D0786B0038 for ; Fri, 22 Dec 2017 08:20:13 -0500 (EST) Received: by mail-wm0-f71.google.com with SMTP id n13so5376493wmc.3 for ; Fri, 22 Dec 2017 05:20:13 -0800 (PST) Received: from mail-sor-f41.google.com (mail-sor-f41.google.com. [209.85.220.41]) by mx.google.com with SMTPS id c36sor12193564edf.49.2017.12.22.05.20.11 for (Google Transport Security); Fri, 22 Dec 2017 05:20:11 -0800 (PST) MIME-Version: 1.0 In-Reply-To: <20171222045318.GA4505@wolff.to> References: <20171221130057.GA26743@wolff.to> <20171221151843.GA453@wolff.to> <20171221153631.GA2300@wolff.to> <20171221164221.GA23680@wolff.to> <14f04d43-728a-953f-e07c-e7f9d5e3392d@kernel.dk> <20171221181531.GA21050@wolff.to> <20171221231603.GA15702@wolff.to> <20171222045318.GA4505@wolff.to> From: weiping zhang Date: Fri, 22 Dec 2017 21:20:10 +0800 Message-ID: Subject: Re: Regression with a0747a859ef6 ("bdi: add error handle for bdi_debug_register") Content-Type: text/plain; charset="UTF-8" Sender: owner-linux-mm@kvack.org List-ID: To: Bruno Wolff III Cc: Jens Axboe , Laura Abbott , Jan Kara , linux-mm@kvack.org, Linux Kernel Mailing List , regressions@leemhuis.info, weiping zhang , linux-block@vger.kernel.org 2017-12-22 12:53 GMT+08:00 Bruno Wolff III : > On Thu, Dec 21, 2017 at 17:16:03 -0600, > Bruno Wolff III wrote: >> >> >> Enforcing mode alone isn't enough as I tested that one one machine at home >> and it didn't trigger the problem. I'll try another machine late tonight. > > > I got the problem to occur on my i686 machine when booting in enforcing > mode. This machine uses raid 1 vua mdraid which may or may not be a factor > in this problem. The boot log has a trace at the end and might be helpful, > so I'm attaching it here. Hi Bruno, I can reproduce this issue in my QEMU test VM easily, just add an soft RAID1, always trigger that warning, I'll debug it later. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org