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=-5.7 required=3.0 tests=FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,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 D7E53C433DF for ; Thu, 2 Jul 2020 05:59:09 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B5D5C20663 for ; Thu, 2 Jul 2020 05:59:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726152AbgGBF7H (ORCPT ); Thu, 2 Jul 2020 01:59:07 -0400 Received: from mail-il1-f199.google.com ([209.85.166.199]:50548 "EHLO mail-il1-f199.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725774AbgGBF7G (ORCPT ); Thu, 2 Jul 2020 01:59:06 -0400 Received: by mail-il1-f199.google.com with SMTP id l17so18813044ilj.17 for ; Wed, 01 Jul 2020 22:59:06 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:date:in-reply-to:message-id:subject :from:to; bh=xbytn9M3cxRfOi5zth6kd9KGsR1TEtsxTskqPLpg9gk=; b=ddiGSZqMW2y/m58X3hDGiurDVtnxoveQZ0XBQ1mcXdy91ySC3CzzMebafOicOr8LTL kGt8j7qWgrFERU/I2vsPCH00/Lcp4/TdR6Omt6tS0CGTHmf2q1UqxJyWZENi9wIKdq1h fzHIoD2c1wZanjM3cf0IN3BBt+MtaTcvn01FJvEV3qHlh06TbnKTIeglTnt+dvAG6j+U /2mp+aV3r4B3OfPQCPmcElFMVzCackQymw8E941g39YA45qq6j9keQSNYaQ1EB7Qt+/P U4dHBJ21av20UF+UpjFpLpIehrId/ADvUk2g9lmS8HcqmUu/XJeIi6OpGJzFpNhd34bD jhMQ== X-Gm-Message-State: AOAM532oYthsvWGnPmy0Vm+s89Tbws4oSEYAoNvgR+MEicuOxLumnjG5 FpQK4cPVXIECIR0CP6te4Am8c32qaKwLy0Gd3pgwyy6PPo9M X-Google-Smtp-Source: ABdhPJwYd5RKhOT9Nti7IyaWKnwwbMZeMQ8zrGXQzpwoBuIFp4ja7As0wb5vuWZZ3LxVZPkx2R/wE7IZVvBFXdpbxa54lsJZzdA4 MIME-Version: 1.0 X-Received: by 2002:a92:2ca:: with SMTP id 193mr11456381ilc.299.1593669545736; Wed, 01 Jul 2020 22:59:05 -0700 (PDT) Date: Wed, 01 Jul 2020 22:59:05 -0700 In-Reply-To: <000000000000b41c6405a8e38c6d@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <00000000000029c39c05a96f1bb8@google.com> Subject: Re: WARNING: suspicious RCU usage in qrtr_ns_worker From: syzbot To: bjorn.andersson@linaro.org, colin.king@canonical.com, dan.carpenter@oracle.com, davem@davemloft.net, kuba@kernel.org, linux-kernel@vger.kernel.org, manivannan.sadhasivam@linaro.org, netdev@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org syzbot has bisected this bug to: commit e42671084361302141a09284fde9bbc14fdd16bf Author: Manivannan Sadhasivam Date: Thu May 7 12:53:06 2020 +0000 net: qrtr: Do not depend on ARCH_QCOM bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=105f7755100000 start commit: 7ae77150 Merge tag 'powerpc-5.8-1' of git://git.kernel.org.. git tree: upstream final crash: https://syzkaller.appspot.com/x/report.txt?x=125f7755100000 console output: https://syzkaller.appspot.com/x/log.txt?x=145f7755100000 kernel config: https://syzkaller.appspot.com/x/.config?x=be4578b3f1083656 dashboard link: https://syzkaller.appspot.com/bug?extid=0f84f6eed90503da72fc syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1521944d100000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1298d245100000 Reported-by: syzbot+0f84f6eed90503da72fc@syzkaller.appspotmail.com Fixes: e42671084361 ("net: qrtr: Do not depend on ARCH_QCOM") For information about bisection process see: https://goo.gl/tpsmEJ#bisection