syzbot suspects this bug was fixed by commit:
commit 10476e6304222ced7df9b3d5fb0a043b3c2a1ad8
Author: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Date: Fri Mar 13 08:56:38 2020 +0000
locking/lockdep: Fix bad recursion pattern
bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=142baee4100000
start commit: 5a1e843c Merge tag 'mips_fixes_5.4_3' of git://git.kernel...
git tree: upstream
kernel config: https://syzkaller.appspot.com/x/.config?x=420126a10fdda0f1
dashboard link: https://syzkaller.appspot.com/bug?extid=36baa6c2180e959e19b1
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1108239ce00000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=13cf40a8e00000
If the result looks correct, please mark the bug fixed by replying with:
#syz fix: locking/lockdep: Fix bad recursion pattern
For information about bisection process see: https://goo.gl/tpsmEJ#bisection
