linux-kernel - Re: BUG: soft lockup in __do_sys_clock

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Date:   Sun, 19 Jul 2020 16:02:04 -0700
From:   syzbot <syzbot+b63f85efcdedbba8b3be@...kaller.appspotmail.com>
To:     akpm@...ux-foundation.org, bp@...en8.de, davem@...emloft.net,
        hpa@...or.com, jhs@...atatu.com, jiri@...nulli.us,
        linux-kernel@...r.kernel.org, luto@...nel.org, mingo@...e.hu,
        mingo@...hat.com, netdev@...r.kernel.org, peterz@...radead.org,
        syzkaller-bugs@...glegroups.com, tglx@...utronix.de,
        vinicius.gomes@...el.com, x86@...nel.org, xiyou.wangcong@...il.com
Subject: Re: BUG: soft lockup in __do_sys_clock_adjtime

syzbot has bisected this issue to:

commit 5a781ccbd19e4664babcbe4b4ead7aa2b9283d22
Author: Vinicius Costa Gomes <vinicius.gomes@...el.com>
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@...kaller.appspotmail.com
Fixes: 5a781ccbd19e ("tc: Add support for configuring the taprio scheduler")

For information about bisection process see: https://goo.gl/tpsmEJ#bisection