Re: [syzbot] [block?] [trace?] INFO: task hung in blk_trace_setup (4)

From: syzbot

Date: Sun Sep 28 2025 - 16:12:02 EST


syzbot has bisected this issue to:

commit c2368b19807affd7621f7c4638cd2e17fec13021
Author: Jiri Pirko <jiri@xxxxxxxxxx>
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@xxxxxxxxxxxxxxxxxxxxxxxxx
Fixes: c2368b19807a ("net: devlink: introduce "unregistering" mark and use it during devlinks iteration")

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