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SubjectRe: INFO: rcu detected stall in __process_echoes
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On 2018/03/28 16:01, syzbot wrote:
> Hello,
>
> syzbot hit the following crash on upstream commit
> 3eb2ce825ea1ad89d20f7a3b5780df850e4be274 (Sun Mar 25 22:44:30 2018 +0000)
> Linux 4.16-rc7
> syzbot dashboard link: https://syzkaller.appspot.com/bug?extid=108696293d7a21ab688f
>
> So far this crash happened 10 times on upstream.
> C reproducer: https://syzkaller.appspot.com/x/repro.c?id=4941573204738048
> syzkaller reproducer: https://syzkaller.appspot.com/x/repro.syz?id=5314352743710720
> Raw console output: https://syzkaller.appspot.com/x/log.txt?id=5561943247028224
> Kernel config: https://syzkaller.appspot.com/x/.config?id=-8440362230543204781
> compiler: gcc (GCC) 7.1.1 20170620

Reproducer and result are essentially same with another report. Thus,

#syz dup: INFO: rcu detected stall in n_tty_receive_char_special

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