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Date:   Tue, 15 Jan 2019 11:15:19 +0100
From:   Florian Westphal <>
To:     Michal Kubecek <>
        Martin Steigerwald <>
Subject: Re: [REGRESSION] 5.0-rc2: iptables -nvL consumes 100% of CPU and
 hogs memory with kernel 5.0-rc2

Michal Kubecek <> wrote:
> > I upgraded to self-compiled 5.0-rc2 today and found the machine to be slow
> > after startup. I saw iptables consuming 100% CPU, it only responded to
> > SIGKILL. It got restarted several times, probably by some systemd service.
> > 
> > Then I started 'iptables -nvL' manually. And I got this:
> > 
> > % strace -p 5748
> > [… tons more, in what appeared an endless loop …]

This is fixed by:
("netfilter: nf_tables: Fix for endless loop when dumping ruleset"). 

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