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 D1532C433E1 for ; Sun, 19 Jul 2020 23:02:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B89B1208B3 for ; Sun, 19 Jul 2020 23:02:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726619AbgGSXCH (ORCPT ); Sun, 19 Jul 2020 19:02:07 -0400 Received: from mail-io1-f71.google.com ([209.85.166.71]:35482 "EHLO mail-io1-f71.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726159AbgGSXCF (ORCPT ); Sun, 19 Jul 2020 19:02:05 -0400 Received: by mail-io1-f71.google.com with SMTP id i204so10091723ioa.2 for ; Sun, 19 Jul 2020 16:02:04 -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=yAyoquWQur/JE0vcMjr85UEh8dUhSL28OuUIPGAj7Z4=; b=gw2KFkJuRelXJ0sdpLrul9hXBC6bU4Suqbk4rnai6cgz+iJ0k//fe+9Z/iNlP6n8iC GnS+Zcu79dF+wPxIlGouc06IEFzGWMrLbOiQwEUTzdgFh4Q6Wmt3vek8Srks8wmRGWW9 qBvVQSSFJItaOSd5SfQLdHbGu9/FknNV84OaxT4dPfO/3CHjcIyLCMbj92n9xBKiYJSd KSDSLZ1SqME9OI2uirqhDEbneOhXb9JM6aip06gyR6Pm6/EePuF4E17HKUTUhI88KVIc vqW8/HGlWDA8yu+1wgwvdeEH9b1jZQHTzb5FqAGlyHm8Drat40OGEvv2Y6Rf3TrIujKF aTVA== X-Gm-Message-State: AOAM532pDYJ+IK+E74Q5j/DULIZDpcfo930Mc7VFRp8Tm/XjGMVtFNZj peFVrJzEO38sGmgfmALV8dX0CoCE8hex0BdhI2gawFI4SraT X-Google-Smtp-Source: ABdhPJwWt4B8WbtLMsmBYQmM2VfWyfOntvoTC+LmzCsi1coiOMj3P2eZTNHm+1EGBF8VkbJpY83MG5RtAxjdYt/IIRKpIihJWwHt MIME-Version: 1.0 X-Received: by 2002:a92:d181:: with SMTP id z1mr20509309ilz.41.1595199724489; Sun, 19 Jul 2020 16:02:04 -0700 (PDT) Date: Sun, 19 Jul 2020 16:02:04 -0700 In-Reply-To: <0000000000001e16e605a9d01ab3@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000ec958305aad360e3@google.com> Subject: Re: BUG: soft lockup in __do_sys_clock_adjtime From: syzbot To: akpm@linux-foundation.org, bp@alien8.de, davem@davemloft.net, hpa@zytor.com, jhs@mojatatu.com, jiri@resnulli.us, linux-kernel@vger.kernel.org, luto@kernel.org, mingo@elte.hu, mingo@redhat.com, netdev@vger.kernel.org, peterz@infradead.org, syzkaller-bugs@googlegroups.com, tglx@linutronix.de, vinicius.gomes@intel.com, x86@kernel.org, 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=13cb847f100000 start commit: 7cc2a8ea Merge tag 'block-5.8-2020-07-01' of git://git.ker.. git tree: upstream final oops: https://syzkaller.appspot.com/x/report.txt?x=102b847f100000 console output: https://syzkaller.appspot.com/x/log.txt?x=17cb847f100000 kernel config: https://syzkaller.appspot.com/x/.config?x=7be693511b29b338 dashboard link: https://syzkaller.appspot.com/bug?extid=b63f85efcdedbba8b3be syz repro: https://syzkaller.appspot.com/x/repro.syz?x=11f6948f100000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=138eb7a7100000 Reported-by: syzbot+b63f85efcdedbba8b3be@syzkaller.appspotmail.com Fixes: 5a781ccbd19e ("tc: Add support for configuring the taprio scheduler") For information about bisection process see: https://goo.gl/tpsmEJ#bisection