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=-2.6 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 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 BAF6EC4332B for ; Wed, 18 Mar 2020 21:41:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 910AF20752 for ; Wed, 18 Mar 2020 21:41:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1584567671; bh=qEbIHCbv+HaLooEK7Dzj4/bCdd8cXmosdk8YbTkUuMU=; h=Date:From:To:Cc:Subject:Reply-To:References:In-Reply-To:List-ID: From; b=ZwCMW0Kl3TZAS2XQG5uh3KIdeY+W8Y46QCvIHWng24A0yD34uWjVGHsU6WNZsDf9N kxTiQex2GixNLzAKXW5Dj8MyETU6Kc9M622c93Tk2TV3Cdc/mtfqiMpU6FvVVmlr5s UHVVh3rT78uwAEDCnsD2aWDbLU/QgoIUWSMPCb8c= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727146AbgCRVlK (ORCPT ); Wed, 18 Mar 2020 17:41:10 -0400 Received: from mail.kernel.org ([198.145.29.99]:57840 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726821AbgCRVlK (ORCPT ); Wed, 18 Mar 2020 17:41:10 -0400 Received: from paulmck-ThinkPad-P72.home (50-39-105-78.bvtn.or.frontiernet.net [50.39.105.78]) (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 9221220714; Wed, 18 Mar 2020 21:41:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1584567669; bh=qEbIHCbv+HaLooEK7Dzj4/bCdd8cXmosdk8YbTkUuMU=; h=Date:From:To:Cc:Subject:Reply-To:References:In-Reply-To:From; b=epr/59D4VGVhCGz+YB67c8JxvgQQqOhcP8yZ5XOaq4cXXd/8+2lIhLegXEgz22h4E UTa2TMYAqbSUW4AN6O+SFLrvY8TvvyUejVzeniJHuITh2sMCONdOve7jf2BsTcDnQ8 v2Va4AWgcm+beYEyfwU2IBylokyyyIS2yWcwu6to= Received: by paulmck-ThinkPad-P72.home (Postfix, from userid 1000) id 5F7FC352275A; Wed, 18 Mar 2020 14:41:09 -0700 (PDT) Date: Wed, 18 Mar 2020 14:41:09 -0700 From: "Paul E. McKenney" To: Dmitry Vyukov Cc: syzbot , Josh Triplett , Steven Rostedt , Mathieu Desnoyers , Lai Jiangshan , Joel Fernandes , rcu@vger.kernel.org, LKML , syzkaller-bugs Subject: Re: linux-next build error (8) Message-ID: <20200318214109.GV3199@paulmck-ThinkPad-P72> Reply-To: paulmck@kernel.org References: <000000000000ae2ab305a123f146@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.9.4 (2018-02-28) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Mar 18, 2020 at 09:54:07PM +0100, Dmitry Vyukov wrote: > On Wed, Mar 18, 2020 at 5:57 PM syzbot > wrote: > > > > Hello, > > > > syzbot found the following crash on: > > > > HEAD commit: 47780d78 Add linux-next specific files for 20200318 > > git tree: linux-next > > console output: https://syzkaller.appspot.com/x/log.txt?x=14228745e00000 > > kernel config: https://syzkaller.appspot.com/x/.config?x=b68b7b89ad96c62a > > dashboard link: https://syzkaller.appspot.com/bug?extid=792dec47d693ccdc05a0 > > compiler: gcc (GCC) 9.0.0 20181231 (experimental) > > > > Unfortunately, I don't have any reproducer for this crash yet. > > > > IMPORTANT: if you fix the bug, please add the following tag to the commit: > > Reported-by: syzbot+792dec47d693ccdc05a0@syzkaller.appspotmail.com > > > > kernel/rcu/tasks.h:1070:37: error: 'rcu_tasks_rude' undeclared (first use in this function); did you mean 'rcu_tasks_qs'? > > +rcu maintainers The kbuild test robot beat you to it, and apologies for the hassle. Fixed in -rcu on current "dev" branch. Thanx, Paul > > --- > > This bug is generated by a bot. It may contain errors. > > See https://goo.gl/tpsmEJ for more information about syzbot. > > syzbot engineers can be reached at syzkaller@googlegroups.com. > > > > syzbot will keep track of this bug report. See: > > https://goo.gl/tpsmEJ#status for how to communicate with syzbot.