syzbot has bisected this issue to:
commit 4d67490498acb4ffcef5ba7bc44990d46e66a44c
Author: Fengnan Chang <changfeng...@vivo.com>
Date: Thu Aug 19 08:02:37 2021 +0000
f2fs: Don't create discard thread when device doesn't support realtime
discard
bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=17da7522880000
start commit: 247f34f7b803 Linux 6.1-rc2
git tree: upstream
final oops: https://syzkaller.appspot.com/x/report.txt?x=143a7522880000
console output: https://syzkaller.appspot.com/x/log.txt?x=103a7522880000
kernel config: https://syzkaller.appspot.com/x/.config?x=a66c6c673fb555e8
dashboard link: https://syzkaller.appspot.com/bug?extid=035a381ea1afb63f098d
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=11d92d6a880000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=12e5dbba880000
Reported-by: syzbot+035a381ea1afb63f0...@syzkaller.appspotmail.com
Fixes: 4d67490498ac ("f2fs: Don't create discard thread when device doesn't
support realtime discard")
For information about bisection process see: https://goo.gl/tpsmEJ#bisection
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