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Message-ID: <alpine.DEB.2.21.1908122143290.7324@nanos.tec.linutronix.de>
Date:   Mon, 12 Aug 2019 21:45:39 +0200 (CEST)
From:   Thomas Gleixner <tglx@...utronix.de>
To:     syzbot <syzbot+c4521ac872a4ccc3afec@...kaller.appspotmail.com>
cc:     alexander.h.duyck@...el.com, amritha.nambiar@...el.com,
        andriy.shevchenko@...ux.intel.com, avagin@...il.com,
        davem@...emloft.net, dmitry.torokhov@...il.com, dvyukov@...gle.com,
        eric.dumazet@...il.com, f.fainelli@...il.com,
        gregkh@...uxfoundation.org, idosch@...lanox.com, jiri@...lanox.com,
        kimbrownkd@...il.com, linux-kernel@...r.kernel.org,
        netdev@...r.kernel.org, syzkaller-bugs@...glegroups.com,
        tyhicks@...onical.com, wanghai26@...wei.com, yuehaibing@...wei.com
Subject: Re: WARNING: ODEBUG bug in netdev_freemem (2)

On Wed, 7 Aug 2019, syzbot wrote:

> syzbot has found a reproducer for the following crash on:
> 
> HEAD commit:    13dfb3fa Merge git://git.kernel.org/pub/scm/linux/kernel/g..
> git tree:       net-next
> console output: https://syzkaller.appspot.com/x/log.txt?x=1671e69a600000
> kernel config:  https://syzkaller.appspot.com/x/.config?x=d4cf1ffb87d590d7
> dashboard link: https://syzkaller.appspot.com/bug?extid=c4521ac872a4ccc3afec
> compiler:       gcc (GCC) 9.0.0 20181231 (experimental)
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=170542c2600000

I can't reproduce that here. Can you please apply the patch from:

  https://lore.kernel.org/lkml/alpine.DEB.2.21.1906241920540.32342@nanos.tec.linutronix.de

and try to reproduce with that applied? That should give us more
information about the actual delayed work.

Thanks,

	tglx

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