From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752933AbdKIP6z (ORCPT ); Thu, 9 Nov 2017 10:58:55 -0500 Received: from mail-ot0-f170.google.com ([74.125.82.170]:52913 "EHLO mail-ot0-f170.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751265AbdKIP6y (ORCPT ); Thu, 9 Nov 2017 10:58:54 -0500 X-Google-Smtp-Source: AGs4zMblM8IxSkuRF/BDNHSkZnJ4BKswPscXv3UyGKbJkvc2PnqRGbG+zIc+wzKsSRNpME85zaznXg== Subject: Re: [lkp-robot] [net] 8e5bf9759a: WARNING:at_lib/refcount.c:#refcount_inc To: Vivien Didelot , kernel test robot Cc: "David S. Miller" , LKML , Stephen Rothwell , lkp@01.org References: <20171109014525.GB31005@yexl-desktop> <871sl7bglr.fsf@weeman.i-did-not-set--mail-host-address--so-tickle-me> From: Florian Fainelli Message-ID: <317b76b0-cb7c-6609-7509-2345044c3651@gmail.com> Date: Thu, 9 Nov 2017 07:58:51 -0800 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.4.0 MIME-Version: 1.0 In-Reply-To: <871sl7bglr.fsf@weeman.i-did-not-set--mail-host-address--so-tickle-me> Content-Type: text/plain; charset=windows-1252 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 11/09/2017 07:45 AM, Vivien Didelot wrote: > Hi, > > Hum I don't understand why I don't see this 'increment on 0' > warning... But I'm sending a fix for that anyway. You need a platform which has FULL refcount support (CONFIG_REFCOUNT_FULL), you are likely testing on ARM 32-bit which does not currently have that. I would recommend firing up an x86_64 VM and use that as a test platform to reproduce this. -- Florian