linux-kernel - Re: INFO: rcu detected stall in __se_sys

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Message-ID: <CACT4Y+aX1eZ3Pwb=LfeH+rsadx2ehwmfFb9MQy=FK25MegP6CA@mail.gmail.com>
Date:   Tue, 8 Dec 2020 07:33:01 +0100
From:   Dmitry Vyukov <dvyukov@...gle.com>
To:     syzbot <syzbot+3f2db34df769d77edf8c@...kaller.appspotmail.com>
Cc:     David Howells <dhowells@...hat.com>,
        Frédéric Weisbecker <fweisbec@...il.com>,
        linux-afs@...ts.infradead.org, LKML <linux-kernel@...r.kernel.org>,
        Ingo Molnar <mingo@...nel.org>,
        syzkaller-bugs <syzkaller-bugs@...glegroups.com>,
        Thomas Gleixner <tglx@...utronix.de>
Subject: Re: INFO: rcu detected stall in __se_sys_mount

On Mon, Dec 7, 2020 at 9:06 PM syzbot
<syzbot+3f2db34df769d77edf8c@...kaller.appspotmail.com> wrote:
>
> syzbot suspects this issue was fixed by commit:
>
> commit 1d0e850a49a5b56f8f3cb51e74a11e2fedb96be6
> Author: David Howells <dhowells@...hat.com>
> Date:   Fri Oct 16 12:21:14 2020 +0000
>
>     afs: Fix cell removal
>
> bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=162cebcf500000
> start commit:   c85fb28b Merge tag 'arm64-fixes' of git://git.kernel.org/p..
> git tree:       upstream
> kernel config:  https://syzkaller.appspot.com/x/.config?x=de7f697da23057c7
> dashboard link: https://syzkaller.appspot.com/bug?extid=3f2db34df769d77edf8c
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=11df5d4f900000
> C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=157851e0500000
>
> If the result looks correct, please mark the issue as fixed by replying with:
>
> #syz fix: afs: Fix cell removal
>
> For information about bisection process see: https://goo.gl/tpsmEJ#bisection

#syz fix: afs: Fix cell removal