netdev - Re: WARNING in tracepoint_probe_register

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Message-ID: <20190816124110.pohillduyajfuo2p@linutronix.de>
Date:   Fri, 16 Aug 2019 14:41:10 +0200
From:   Sebastian Andrzej Siewior <bigeasy@...utronix.de>
To:     syzbot <syzbot+774fddf07b7ab29a1e55@...kaller.appspotmail.com>
Cc:     antoine.tenart@...tlin.com, ard.biesheuvel@...aro.org,
        baruch@...s.co.il, davem@...emloft.net, gregkh@...uxfoundation.org,
        gustavo@...eddedor.com, jeyu@...nel.org,
        linux-kernel@...r.kernel.org, mathieu.desnoyers@...icios.com,
        maxime.chevallier@...tlin.com, mingo@...nel.org,
        netdev@...r.kernel.org, paulmck@...ux.ibm.com,
        paulmck@...ux.vnet.ibm.com, rmk+kernel@...linux.org.uk,
        rostedt@...dmis.org, syzkaller-bugs@...glegroups.com,
        tglx@...utronix.de
Subject: Re: WARNING in tracepoint_probe_register_prio (3)

On 2019-08-16 05:32:00 [-0700], syzbot wrote:
> syzbot has bisected this bug to:
> 
> commit ecb9f80db23a7ab09b46b298b404e41dd7aff6e6
> Author: Thomas Gleixner <tglx@...utronix.de>
> Date:   Tue Aug 13 08:00:25 2019 +0000
> 
>     net/mvpp2: Replace tasklet with softirq hrtimer
> 
> bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=13ffb9ee600000

that bisect is wrong. That warning triggered once and this commit was
the top most one in net-next at the time…

Sebastian