From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-it0-f69.google.com (mail-it0-f69.google.com [209.85.214.69]) by kanga.kvack.org (Postfix) with ESMTP id 4F6D06B0069 for ; Sun, 17 Dec 2017 10:58:22 -0500 (EST) Received: by mail-it0-f69.google.com with SMTP id x32so2662709ita.1 for ; Sun, 17 Dec 2017 07:58:22 -0800 (PST) Received: from wolff.to (wolff.to. [98.103.208.27]) by mx.google.com with SMTP id d189si8008548itg.40.2017.12.17.07.58.21 for ; Sun, 17 Dec 2017 07:58:21 -0800 (PST) Date: Sun, 17 Dec 2017 09:54:48 -0600 From: Bruno Wolff III Subject: Re: Regression with a0747a859ef6 ("bdi: add error handle for bdi_debug_register") Message-ID: <20171217155448.GA20370@wolff.to> References: <20171214100927.GA26167@localhost.didichuxing.com> <20171214154136.GA12936@wolff.to> <20171215014417.GA17757@wolff.to> <20171215111050.GA30737@wolff.to> <20171215195122.GA27126@wolff.to> <20171216163226.GA1796@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 Sun, Dec 17, 2017 at 21:43:50 +0800, weiping zhang wrote: >Hi, thanks for testing, I think you first reproduce this issue(got WARNING >at device_add_disk) by your own build, then add my debug patch. No, the first log (that Laura copied) was from the Fedora bug and it was from a Fedora kernel before I started doing the bisect. That warnings are missing from all of my builds, not just the ones from the patches. I didn't spot anything obvious going through the kernel spec file when I looked, but I could easily have missed something. Hopefully it is just a boot default that is different and that I can override it with a kernel boot parameter. -- 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