linux-kernel - Re: [syzbot] [net?] INFO: task hung in linkwatch

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Message-ID: <66f816e6.050a0220.aab67.0004.GAE@google.com>
Date: Sat, 28 Sep 2024 07:47:02 -0700
From: syzbot <syzbot+2ba2d70f288cf61174e4@...kaller.appspotmail.com>
To: bsegall@...gle.com, davem@...emloft.net, dietmar.eggemann@....com, 
	edumazet@...gle.com, jiri@...nulli.us, johannes.berg@...el.com, 
	juri.lelli@...hat.com, kuba@...nel.org, linux-kernel@...r.kernel.org, 
	mgorman@...e.de, mingo@...hat.com, netdev@...r.kernel.org, pabeni@...hat.com, 
	peterz@...radead.org, rostedt@...dmis.org, syzkaller-bugs@...glegroups.com, 
	vincent.guittot@...aro.org, vschneid@...hat.com
Subject: Re: [syzbot] [net?] INFO: task hung in linkwatch_event (4)

syzbot has bisected this issue to:

commit e8901061ca0cd9acbd3d29d41d16c69c2bfff9f0
Author: Peter Zijlstra <peterz@...radead.org>
Date:   Thu May 23 08:48:09 2024 +0000

    sched: Split DEQUEUE_SLEEP from deactivate_task()

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=13ce9e80580000
start commit:   075dbe9f6e3c Merge tag 'soc-ep93xx-dt-6.12' of git://git.k..
git tree:       upstream
final oops:     https://syzkaller.appspot.com/x/report.txt?x=102e9e80580000
console output: https://syzkaller.appspot.com/x/log.txt?x=17ce9e80580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=b2d4fdf18a83ec0b
dashboard link: https://syzkaller.appspot.com/bug?extid=2ba2d70f288cf61174e4
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=10e2c507980000

Reported-by: syzbot+2ba2d70f288cf61174e4@...kaller.appspotmail.com
Fixes: e8901061ca0c ("sched: Split DEQUEUE_SLEEP from deactivate_task()")

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