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=-4.0 required=3.0 tests=BAYES_00,FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED 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 63D1AC43461 for ; Fri, 4 Sep 2020 18:49:27 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 2E7C020665 for ; Fri, 4 Sep 2020 18:49:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727947AbgIDStZ (ORCPT ); Fri, 4 Sep 2020 14:49:25 -0400 Received: from mail-io1-f78.google.com ([209.85.166.78]:33599 "EHLO mail-io1-f78.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726135AbgIDStY (ORCPT ); Fri, 4 Sep 2020 14:49:24 -0400 Received: by mail-io1-f78.google.com with SMTP id l22so4956943iol.0 for ; Fri, 04 Sep 2020 11:49:24 -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:message-id:subject:from:to; bh=TOFBE4HTcbXDyRMOJgb3leKynwSg2NmoD0Ng3nhX3cc=; b=BA56NvomG56kR/SoCs6+BaWlEvmhwj6+Gyp2BJGTRQXaKTC0nHi2lOBhJ45xZoeUih iTTx1Rz+mXifUxCTnOgiVfKvNyTQbSGQxpFnpBIU2huLKZOZdkcSwTe+IFdw7NZaSe8K V7gnX8jqOfnYLUZR8IN/HlUQgyED2FDQaLxMzwmmV0IAj+s+lGZ4WCk6x/lhwI7xAiwy QMUz2v13oEQhUYb8v6NQD8EJaQu+UezSePKRQrF6xW/pFWzokMO9A8uECe/O/M7d7wwo qvXR4IJ0b9T4vDOjkQklCJHx5sMfHw7Rqf1OkAidO/b4CEmL62gwDrO3njnUfz5orcw5 0cuw== X-Gm-Message-State: AOAM531mZY00Gb/tEbg5LqlvrXfWqcdDOHMZTT18S8CW7Twz+3bkNUMz wvBAaro7/QRfdXHChhWujNoT1vlkh5hCY+bC3UI3ONcf/3Q4 X-Google-Smtp-Source: ABdhPJy/LlxVoNy12xZiR+rW42nteryHFH3Oe49AnnRE7TORwoi3l+Ic2SQ1MThQt2isg0cAdCdL0KLE9JituqreFc7/Gdaljiil MIME-Version: 1.0 X-Received: by 2002:a92:cec9:: with SMTP id z9mr9123487ilq.41.1599245363631; Fri, 04 Sep 2020 11:49:23 -0700 (PDT) Date: Fri, 04 Sep 2020 11:49:23 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000cedbc405ae81531f@google.com> Subject: INFO: rcu detected stall in corrupted (4) From: syzbot To: davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, syzkaller-bugs@googlegroups.com, 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 Hello, syzbot found the following issue on: HEAD commit: 0f091e43 netlabel: remove unused param from audit_log_form.. git tree: net-next console output: https://syzkaller.appspot.com/x/log.txt?x=14551a71900000 kernel config: https://syzkaller.appspot.com/x/.config?x=61025c6fd3261bb1 dashboard link: https://syzkaller.appspot.com/bug?extid=aa7d098bd6fa788fae8e compiler: gcc (GCC) 10.1.0-syz 20200507 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=14eeda25900000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=161472f5900000 The issue was bisected 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=13096476900000 console output: https://syzkaller.appspot.com/x/log.txt?x=17096476900000 IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+aa7d098bd6fa788fae8e@syzkaller.appspotmail.com Fixes: 5a781ccbd19e ("tc: Add support for configuring the taprio scheduler") hrtimer: interrupt took 18040217 ns rcu: INFO: rcu_preempt self-detected stall on CPU rcu: 0-....: (1 ticks this GP) idle=4ae/0/0x1 softirq=7665/7665 fqs=3 (t=11294 jiffies g=9289 q=363) --- This report 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 issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. For information about bisection process see: https://goo.gl/tpsmEJ#bisection syzbot can test patches for this issue, for details see: https://goo.gl/tpsmEJ#testing-patches