linux-kernel - Re: [syzbot] [block?] [trace?] INFO: task hung in blk_trace

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Message-ID: <68d99692.a70a0220.10c4b.0027.GAE@google.com>
Date: Sun, 28 Sep 2025 13:12:02 -0700
From: syzbot <syzbot+9c1ebb9957045e00ac63@...kaller.appspotmail.com>
To: axboe@...nel.dk, davem@...emloft.net, jiri@...dia.com, kuba@...nel.org, 
	linux-block@...r.kernel.org, linux-kernel@...r.kernel.org, 
	linux-trace-kernel@...r.kernel.org, mathieu.desnoyers@...icios.com, 
	mhiramat@...nel.org, netdev@...r.kernel.org, pabeni@...hat.com, 
	rostedt@...dmis.org, syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [block?] [trace?] INFO: task hung in blk_trace_setup (4)

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=12620ae2580000
start commit:   347e9f5043c8 Linux 6.16-rc6
git tree:       upstream
final oops:     https://syzkaller.appspot.com/x/report.txt?x=11620ae2580000
console output: https://syzkaller.appspot.com/x/log.txt?x=16620ae2580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=f62a2ef17395702a
dashboard link: https://syzkaller.appspot.com/bug?extid=9c1ebb9957045e00ac63
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=138dfd82580000

Reported-by: syzbot+9c1ebb9957045e00ac63@...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