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 B8ABB6B026A for ; Thu, 21 Dec 2017 10:48:21 -0500 (EST) Received: by mail-wm0-f71.google.com with SMTP id o16so4206722wmf.4 for ; Thu, 21 Dec 2017 07:48:21 -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 k2sor10906242edc.21.2017.12.21.07.48.20 for (Google Transport Security); Thu, 21 Dec 2017 07:48:20 -0800 (PST) MIME-Version: 1.0 In-Reply-To: <20171221153631.GA2300@wolff.to> References: <20171221130057.GA26743@wolff.to> <20171221151843.GA453@wolff.to> <20171221153631.GA2300@wolff.to> From: weiping zhang Date: Thu, 21 Dec 2017 23:48:19 +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: Laura Abbott , Jan Kara , Jens Axboe , linux-mm@kvack.org, Linux Kernel Mailing List , regressions@leemhuis.info, weiping zhang , linux-block@vger.kernel.org 2017-12-21 23:36 GMT+08:00 Bruno Wolff III : > On Thu, Dec 21, 2017 at 23:31:40 +0800, > weiping zhang wrote: >> >> does every time boot fail can trigger WANRING in device_add_disk ? > > > Not that I see. But the message could scroll off the screen. The boot gets > far enough that systemd copies over dmesg output to permanent storage that I > can see on my next successful boot. That's where I looked for the warning > output you want. I never saw it for any kernels I compiled myself. Only when > I test kernels built by Fedora do I see it. see it every boot ? > I just tried booting to single user and the boot still hangs. > > When I build the kernels, the compiler options are probably a bit different > than when Fedora does. That might affect what happens during boot. -- 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