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=-2.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_2 autolearn=no 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 55A6BC2BB85 for ; Wed, 15 Apr 2020 19:30:23 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 2F41E20732 for ; Wed, 15 Apr 2020 19:30:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2436494AbgDOT3G (ORCPT ); Wed, 15 Apr 2020 15:29:06 -0400 Received: from mail.kernel.org ([198.145.29.99]:53658 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2411884AbgDOT26 (ORCPT ); Wed, 15 Apr 2020 15:28:58 -0400 Received: from gandalf.local.home (cpe-66-24-58-225.stny.res.rr.com [66.24.58.225]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 8A73120771; Wed, 15 Apr 2020 19:28:56 +0000 (UTC) Date: Wed, 15 Apr 2020 15:28:54 -0400 From: Steven Rostedt To: Randy Dunlap Cc: Brendan Higgins , Naresh Kamboju , Linus Torvalds , Greg Kroah-Hartman , "Rafael J. Wysocki" , Stephen Rothwell , Linux Next Mailing List , Linux Kernel Mailing List , Rasmus Villemoes , Heikki Krogerus Subject: Re: linux-next: Tree for Apr 10 (lib/test_printf.ko) Message-ID: <20200415152854.625075ab@gandalf.local.home> In-Reply-To: <26e0f0dd-4ea2-14e7-fae5-81a5a1451272@infradead.org> References: <20200410132706.170811b7@canb.auug.org.au> <27c212c4-b522-561d-411c-e74dc0ff0b74@infradead.org> <2b0f5d2e-3fe5-10c9-2a9a-9a0b341a52d5@infradead.org> <20200415185545.GA1632@home.goodmis.org> <26e0f0dd-4ea2-14e7-fae5-81a5a1451272@infradead.org> X-Mailer: Claws Mail 3.17.3 (GTK+ 2.24.32; x86_64-pc-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-next-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-next@vger.kernel.org On Wed, 15 Apr 2020 12:16:49 -0700 Randy Dunlap wrote: > > My test suite just tripped over this bug. Is this the patch that you think > > fixes it? > > > > https://lore.kernel.org/linux-kselftest/20200414081513.GD2828150@kuha.fi.intel.com > > Yes, it is, but GregKH and Rafael Wysocki don't seem to like that patch > and are suggesting some changes in lib/kobject.c (only pseudocode, > no patch yet). > > > I'll add it to see if I can continue my testing. > > See the thread > [PATCH v1] kobject: make sure parent is not released before children > > Here is Rafael's suggestion: > https://lore.kernel.org/linux-kselftest/CAJZ5v0hNemTDVa_S-FfVMbrKjM-RWYoHh88asnUvTNxZinY2cw@mail.gmail.com/ > Thanks for the update. If the first patch prevents the crash from happening, then I'll keep it for the time being. I have a list of patch "fixes" that get applied to the kernel I'm testing, such that I can run the tests without them failing for something that I'm not testing. Otherwise, I'd never get to test my code :-) Some of theses patches just remove "WARN_ON" because those will cause my tests to fail. I really don't care if i915 triggers WARN_ON() as my code shouldn't be affecting it. -- Steve