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 49A3DC433DF for ; Wed, 15 Jul 2020 16:39:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3340720658 for ; Wed, 15 Jul 2020 16:39:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725912AbgGOQjG (ORCPT ); Wed, 15 Jul 2020 12:39:06 -0400 Received: from mail-io1-f71.google.com ([209.85.166.71]:57278 "EHLO mail-io1-f71.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725770AbgGOQjF (ORCPT ); Wed, 15 Jul 2020 12:39:05 -0400 Received: by mail-io1-f71.google.com with SMTP id a10so1690210ioc.23 for ; Wed, 15 Jul 2020 09:39:05 -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=bpi1X2/kiZRhiI5Uh4MWU1GOK2TwFKFWyvVbQHnHroo=; b=RJ+RE69pgxrMAvpum8u4SjPpcILUX/R5WsExJeGwhCYPSG6r3Womn0hp5mPP5uRmBe iccYK9APpiWn4/oIjadThyP8PMcrK5HlSauSOcGvgWzxWr1HtHYZdRbdkQvN0w2jyWS5 TwQgmJe5N2kgkVibRt8JnUIICrw4vylCzb0IkVEg+BMRHpbolcLEXJBDTc7MUwQY76oe 2at+KvzPjcSFRDKos17wp1Hbhm5sxXB0tZTnZoARGNWNtx9VrKMS2wnEUIS9Pb7jF6nN p3fFGavzcZFeS9sFAoUVFccqaHL60I0ySx6zTTMar3pZ5ob7bt/wtSB8960pv5HentOR I+Hw== X-Gm-Message-State: AOAM531q9z6BXuPceUucNbWB1bDVvkMDU8xxmT3so8hky1ZTdHwMYbza ua2fxP8lDthKKXvO/rdukj1rcUgjMJJS6CAIO/hDWHyDnO+2 X-Google-Smtp-Source: ABdhPJyj/1GBiR6PORckm/5csMRZ7ojgTW/dLEi19AkOiFkL5lHeuRaRNTDxUunwfQt8Wvb4CMqCf2S1geELgmOTfXfL7noTXw6M MIME-Version: 1.0 X-Received: by 2002:a6b:16c4:: with SMTP id 187mr130872iow.7.1594831144722; Wed, 15 Jul 2020 09:39:04 -0700 (PDT) Date: Wed, 15 Jul 2020 09:39:04 -0700 In-Reply-To: <00000000000065e73d05aa743471@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000dbb12b05aa7d8f77@google.com> Subject: Re: INFO: rcu detected stall in __do_sys_clock_adjtime From: syzbot To: davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, kuba@kernel.org, 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 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=158ab3e0900000 start commit: a581387e Merge tag 'io_uring-5.8-2020-07-10' of git://git... git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=138ab3e0900000 kernel config: https://syzkaller.appspot.com/x/.config?x=66ad203c2bb6d8b dashboard link: https://syzkaller.appspot.com/bug?extid=587a843fe6b38420a209 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=14778a77100000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=15150e13100000 Reported-by: syzbot+587a843fe6b38420a209@syzkaller.appspotmail.com Fixes: 5a781ccbd19e ("tc: Add support for configuring the taprio scheduler") For information about bisection process see: https://goo.gl/tpsmEJ#bisection