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SubjectRe: WARNING: bad unlock balance in rcu_lock_release
From
syzbot suspects this bug was fixed by commit:

commit 10476e6304222ced7df9b3d5fb0a043b3c2a1ad8
Author: Peter Zijlstra <peterz@infradead.org>
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=16d64bac100000
start commit: 7d194c21 Linux 5.4-rc4
git tree: upstream
kernel config: https://syzkaller.appspot.com/x/.config?x=6c03e4d33fa96d51
dashboard link: https://syzkaller.appspot.com/bug?extid=f9545ab3e9f85cd43a3a
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=10a0a8c0e00000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=13dd2dd8e00000

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

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