From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-it0-f70.google.com (mail-it0-f70.google.com [209.85.214.70]) by kanga.kvack.org (Postfix) with ESMTP id 7DB636B0038 for ; Thu, 14 Dec 2017 20:47:24 -0500 (EST) Received: by mail-it0-f70.google.com with SMTP id p144so11683988itc.9 for ; Thu, 14 Dec 2017 17:47:24 -0800 (PST) Received: from wolff.to (wolff.to. [98.103.208.27]) by mx.google.com with SMTP id f141si4195428itf.12.2017.12.14.17.47.23 for ; Thu, 14 Dec 2017 17:47:23 -0800 (PST) Date: Thu, 14 Dec 2017 19:44:17 -0600 From: Bruno Wolff III Subject: Re: Regression with a0747a859ef6 ("bdi: add error handle for bdi_debug_register") Message-ID: <20171215014417.GA17757@wolff.to> References: <20171214082452.GA16698@wolff.to> <20171214100927.GA26167@localhost.didichuxing.com> <20171214154136.GA12936@wolff.to> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Disposition: inline In-Reply-To: Sender: owner-linux-mm@kvack.org List-ID: To: weiping zhang Cc: Laura Abbott , Jan Kara , Jens Axboe , linux-mm@kvack.org, Linux Kernel Mailing List , regressions@leemhuis.info, linux-block@vger.kernel.org On Fri, Dec 15, 2017 at 09:22:21 +0800, weiping zhang wrote: > >Thanks your testing, but I cann't find WARN_ON in device_add_disk from >this boot1.log, could you help reproduce that issue? And does this issue can be >triggered at every bootup ? I don't know what you need for the first question. When I am physically at the machine I can do test reboots. If you have something specific you want me to try I should be able to. Every time I boot with the problem commit, the boot never completes. However it does seem to get pretty far. I get multiple register dumps every time. After a while (a few minutes) I reboot to a wrking kernel. The output I included is from: journalctl -k -b -1 If you think it would be better to see more than dmesg output let me know. -- 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