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=-9.0 required=3.0 tests=BAYES_00,FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS autolearn=unavailable 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 80621C433E1 for ; Sun, 19 Jul 2020 11:18:10 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5E364208DB for ; Sun, 19 Jul 2020 11:18:10 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726388AbgGSLSJ (ORCPT ); Sun, 19 Jul 2020 07:18:09 -0400 Received: from mail-il1-f197.google.com ([209.85.166.197]:34517 "EHLO mail-il1-f197.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725836AbgGSLSI (ORCPT ); Sun, 19 Jul 2020 07:18:08 -0400 Received: by mail-il1-f197.google.com with SMTP id y3so8950972ily.1 for ; Sun, 19 Jul 2020 04:18:07 -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=VyO5STFmnVvO9DvN7eCLqjZBvvoFWMGC3SxiQbso7po=; b=ifpB3RbrNLoLD6X3125WEtLxNIRtF2vPqzAHiVrtLw0GOJjiHgNecnjCHBk2e2C/zY SSxa7Zhvi+6/V7EtcYJohPs54y01SOvO9IWhuFJsxDpXCAA6z8jw+PIDrtquJiHd79pl 9qBim26rSxPpbt4Rv6vx1Jb5Z8purl4g6hBkbVtGlQGq3LfKDYHwX7Qid42BQGuZwla1 sR+e6QP7D21f/F91C7pMkqfpr9CEtw4dQTztRk2o9AHrjxUg7q2Re/sqP0BF8874KEef 5igDhswoTqTbre5FFv9YHg1v20BOa9K2vClpgk7rCZbHyL3CxoAKgRXxy/Pzt8FD8VWy x05g== X-Gm-Message-State: AOAM5332zOpWCm8aMiZ0KYPcS893/FhScHNVtjN8Bx39KJLEmUma75Gs SKPQILx8KhSiTPxXXMp8lC+O6hnHbYNifGpxT7u3K8tLlWAC X-Google-Smtp-Source: ABdhPJzN017k94AQ4JkwHlIiCPM6i7N8XKcvfwgy3aNk8yE7/wZ8vtYocUkUUv41lSt8g45qQwCeZF6Sahc4C+Lvrm1HNhfd3B+A MIME-Version: 1.0 X-Received: by 2002:a92:d48a:: with SMTP id p10mr18445285ilg.230.1595157487462; Sun, 19 Jul 2020 04:18:07 -0700 (PDT) Date: Sun, 19 Jul 2020 04:18:07 -0700 In-Reply-To: <0000000000009f4ecd05a9d4dd9f@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <00000000000066afb205aac98b9d@google.com> Subject: Re: INFO: rcu detected stall in iterate_cleanup_work (2) From: syzbot To: Markus.Elfring@web.de, davem@davemloft.net, hdanton@sina.com, jhs@mojatatu.com, jiri@resnulli.us, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, syzkaller-bugs@googlegroups.com, tglx@linutronix.de, vinicius.gomes@intel.com, xiyou.wangcong@gmail.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 issue to: commit 5a781ccbd19e4664babcbe4b4ead7aa2b9283d22 Author: Vinicius Costa Gomes Date: Sat Sep 29 00:59:43 2018 +0000 tc: Add support for configuring the taprio scheduler bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=141ed087100000 start commit: cd77006e Merge tag 'hyperv-fixes-signed' of git://git.kern.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=121ed087100000 kernel config: https://syzkaller.appspot.com/x/.config?x=7be693511b29b338 dashboard link: https://syzkaller.appspot.com/bug?extid=cc8495ea4052b9b79b72 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=12e567e5100000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=126ffccd100000 Reported-by: syzbot+cc8495ea4052b9b79b72@syzkaller.appspotmail.com Fixes: 5a781ccbd19e ("tc: Add support for configuring the taprio scheduler") For information about bisection process see: https://goo.gl/tpsmEJ#bisection