linux-kernel - Re: [syzbot] [kernel?] INFO: rcu detected stall in schedule (6)

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Message-ID: <000000000000930e6f06084cbd43@google.com>
Date:   Sun, 22 Oct 2023 04:52:31 -0700
From:   syzbot <syzbot+77195ae75047f1438785@...kaller.appspotmail.com>
To:     davem@...emloft.net, edumazet@...gle.com, hdanton@...a.com,
        jiri@...dia.com, kuba@...nel.org, linux-kernel@...r.kernel.org,
        netdev@...r.kernel.org, pabeni@...hat.com, peterz@...radead.org,
        syzkaller-bugs@...glegroups.com, tglx@...utronix.de
Subject: Re: [syzbot] [kernel?] INFO: rcu detected stall in schedule (6)

syzbot has bisected this issue to:

commit c2368b19807affd7621f7c4638cd2e17fec13021
Author: Jiri Pirko <jiri@...dia.com>
Date:   Fri Jul 29 07:10:35 2022 +0000

    net: devlink: introduce "unregistering" mark and use it during devlinks iteration

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=12ed7a99680000
start commit:   a785fd28d31f Merge tag 'for-6.5-rc5-tag' of git://git.kern..
git tree:       upstream
final oops:     https://syzkaller.appspot.com/x/report.txt?x=11ed7a99680000
console output: https://syzkaller.appspot.com/x/log.txt?x=16ed7a99680000
kernel config:  https://syzkaller.appspot.com/x/.config?x=3e670757e16affb
dashboard link: https://syzkaller.appspot.com/bug?extid=77195ae75047f1438785
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=15ec36ada80000

Reported-by: syzbot+77195ae75047f1438785@...kaller.appspotmail.com
Fixes: c2368b19807a ("net: devlink: introduce "unregistering" mark and use it during devlinks iteration")

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