Re: WARNING in geneve_exit_batch_net (2)

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On Fri, Mar 13, 2020 at 2:45 AM Florian Westphal <fw@xxxxxxxxx> wrote:
>
> syzbot <syzbot+68a8ed58e3d17c700de5@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote:
> > syzbot has bisected this bug to:
> >
> > commit 4e645b47c4f000a503b9c90163ad905786b9bc1d
> > Author: Florian Westphal <fw@xxxxxxxxx>
> > Date:   Thu Nov 30 23:21:02 2017 +0000
> >
> >     netfilter: core: make nf_unregister_net_hooks simple wrapper again
>
> No idea why this turns up, the reproducer doesn't hit any of these code
> paths.

The attached bisection log usually makes this reasonably transparent.
It seems that in this case another kernel bug gets in the way of bisection.

> The debug splat is a false-positive; ndo_stop/list_del hasn't run yet.
> I will send a fix for net tree.
>
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