linux-kernel - Re: linux-next build error (8)

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Message-ID: <20200318214109.GV3199@paulmck-ThinkPad-P72>
Date:   Wed, 18 Mar 2020 14:41:09 -0700
From:   "Paul E. McKenney" <paulmck@...nel.org>
To:     Dmitry Vyukov <dvyukov@...gle.com>
Cc:     syzbot <syzbot+792dec47d693ccdc05a0@...kaller.appspotmail.com>,
        Josh Triplett <josh@...htriplett.org>,
        Steven Rostedt <rostedt@...dmis.org>,
        Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
        Lai Jiangshan <jiangshanlai@...il.com>,
        Joel Fernandes <joel@...lfernandes.org>, rcu@...r.kernel.org,
        LKML <linux-kernel@...r.kernel.org>,
        syzkaller-bugs <syzkaller-bugs@...glegroups.com>
Subject: Re: linux-next build error (8)

On Wed, Mar 18, 2020 at 09:54:07PM +0100, Dmitry Vyukov wrote:
> On Wed, Mar 18, 2020 at 5:57 PM syzbot
> <syzbot+792dec47d693ccdc05a0@...kaller.appspotmail.com> wrote:
> >
> > Hello,
> >
> > syzbot found the following crash on:
> >
> > HEAD commit:    47780d78 Add linux-next specific files for 20200318
> > git tree:       linux-next
> > console output: https://syzkaller.appspot.com/x/log.txt?x=14228745e00000
> > kernel config:  https://syzkaller.appspot.com/x/.config?x=b68b7b89ad96c62a
> > dashboard link: https://syzkaller.appspot.com/bug?extid=792dec47d693ccdc05a0
> > compiler:       gcc (GCC) 9.0.0 20181231 (experimental)
> >
> > Unfortunately, I don't have any reproducer for this crash yet.
> >
> > IMPORTANT: if you fix the bug, please add the following tag to the commit:
> > Reported-by: syzbot+792dec47d693ccdc05a0@...kaller.appspotmail.com
> >
> > kernel/rcu/tasks.h:1070:37: error: 'rcu_tasks_rude' undeclared (first use in this function); did you mean 'rcu_tasks_qs'?
> 
> +rcu maintainers

The kbuild test robot beat you to it, and apologies for the hassle.
Fixed in -rcu on current "dev" branch.

							Thanx, Paul

> > ---
> > This bug is generated by a bot. It may contain errors.
> > See https://goo.gl/tpsmEJ for more information about syzbot.
> > syzbot engineers can be reached at syzkaller@...glegroups.com.
> >
> > syzbot will keep track of this bug report. See:
> > https://goo.gl/tpsmEJ#status for how to communicate with syzbot.