linux-kernel - Re: INFO: trying to register non-static key in is_dynamic

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Date:   Fri, 19 Jun 2020 09:05:27 +0200
From:   Greg KH <greg@...ah.com>
To:     syzbot <syzbot+42bc0d31b9a21faebdf8@...kaller.appspotmail.com>
Cc:     andreyknvl@...gle.com, bp@...en8.de, devel@...ukata.com,
        hpa@...or.com, linux-kernel@...r.kernel.org,
        linux-usb@...r.kernel.org, mingo@...hat.com,
        syzkaller-bugs@...glegroups.com, tglx@...utronix.de,
        viro@...iv.linux.org.uk, x86@...nel.org
Subject: Re: INFO: trying to register non-static key in is_dynamic_key

On Thu, Jun 18, 2020 at 02:17:15PM -0700, syzbot wrote:
> Hello,
> 
> syzbot found the following crash on:
> 
> HEAD commit:    b791d1bd Merge tag 'locking-kcsan-2020-06-11' of git://git..
> git tree:       https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing
> console output: https://syzkaller.appspot.com/x/log.txt?x=13f305a9100000
> kernel config:  https://syzkaller.appspot.com/x/.config?x=16c2467d4b6dbee2
> dashboard link: https://syzkaller.appspot.com/bug?extid=42bc0d31b9a21faebdf8
> compiler:       gcc (GCC) 9.0.0 20181231 (experimental)
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=136ad566100000
> C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=10138f7a100000
> 
> IMPORTANT: if you fix the bug, please add the following tag to the commit:
> Reported-by: syzbot+42bc0d31b9a21faebdf8@...kaller.appspotmail.com
> 
> INFO: trying to register non-static key.
> the code is fine but needs lockdep annotation.

Why is INFO: triggering syzbot?