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=-1.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS autolearn=ham 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 3AC45C43387 for ; Mon, 17 Dec 2018 14:14:17 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 14F2920874 for ; Mon, 17 Dec 2018 14:14:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2387499AbeLQOOQ (ORCPT ); Mon, 17 Dec 2018 09:14:16 -0500 Received: from mga01.intel.com ([192.55.52.88]:11513 "EHLO mga01.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732120AbeLQOOO (ORCPT ); Mon, 17 Dec 2018 09:14:14 -0500 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga004.jf.intel.com ([10.7.209.38]) by fmsmga101.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 17 Dec 2018 06:14:13 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.56,365,1539673200"; d="scan'208";a="260130501" Received: from avandeve-mobl.amr.corp.intel.com (HELO [10.251.10.185]) ([10.251.10.185]) by orsmga004.jf.intel.com with ESMTP; 17 Dec 2018 06:14:13 -0800 Subject: Re: WARNING in __rcu_read_unlock To: paulmck@linux.ibm.com, Dmitry Vyukov Cc: syzbot , Andrew Morton , Josh Triplett , LKML , Ingo Molnar , syzkaller-bugs , netdev References: <0000000000005e47a2057d0edc49@google.com> <20181216190412.GE4170@linux.ibm.com> <20181217112916.GG4170@linux.ibm.com> From: Arjan van de Ven Message-ID: <1583d5fc-34bf-3a81-363d-01a1085a7363@linux.intel.com> Date: Mon, 17 Dec 2018 06:14:13 -0800 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.9.1 MIME-Version: 1.0 In-Reply-To: <20181217112916.GG4170@linux.ibm.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 12/17/2018 3:29 AM, Paul E. McKenney wrote: > As does this sort of report on a line that contains simple integer > arithmetic and boolean operations.;-) > > Any chance of a bisection? btw this looks like something caused a stack overflow and thus all the weirdness that then happens