Re: __nf_register_net_hook jump label splat

From: Florian Westphal
Date: Sun Sep 30 2018 - 13:39:45 EST


Borislav Petkov <bp@xxxxxxxxx> wrote:
> Hi people,
>
> this is something new I'm triggering with rc5 + tip/master while rc4 +
> tip/master is fine. Any ideas?

No clue. I don't see any netfilter changes between rc4 & rc5.
I just tried to set up a bridge on rc5 with call-iptables=1
and I see no such splat.

> If I had to guess, it looks like this thing:
>
> #ifdef HAVE_JUMP_LABEL
> static_key_slow_inc(&nf_hooks_needed[pf][reg->hooknum]);
> #endif

Strange, these static keys have been there for years.
Any chance you could send your .config or bisect this?

Thanks.