From mboxrd@z Thu Jan 1 00:00:00 1970 From: Martin Steigerwald Subject: Re: [REGRESSION] 5.0-rc2: iptables -nvL consumes 100% of CPU and hogs memory with kernel 5.0-rc2 Date: Tue, 15 Jan 2019 12:52:06 +0100 Message-ID: <1716489.K3OScS4TjR@merkaba> References: <1608957.xtEoauR4Ya@merkaba> <20190115101006.GE26670@unicorn.suse.cz> <20190115101519.pf7ogpvdz22wku7g@breakpoint.cc> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 8BIT Cc: Michal Kubecek , netfilter-devel@vger.kernel.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org To: Florian Westphal Return-path: In-Reply-To: <20190115101519.pf7ogpvdz22wku7g@breakpoint.cc> Sender: linux-kernel-owner@vger.kernel.org List-Id: netfilter-devel.vger.kernel.org Florian Westphal - 15.01.19, 11:15: > 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: > > http://patchwork.ozlabs.org/patch/1024772/ > ("netfilter: nf_tables: Fix for endless loop when dumping ruleset"). Thanks, Florian. Will wait for first 5.0-rcx with x=>2 that contains the fix. Bug closed on Debian side already, was premature to report it there. Ciao, -- Martin