netdev - Re: bpfilter causes a leftover kernel process

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Message-ID: <20180827183122.0b4ac65e@jjacky.com>
Date:   Mon, 27 Aug 2018 18:31:22 +0200
From:   Olivier Brunel <jjk@...cky.com>
To:     netdev@...r.kernel.org
Cc:     Olivier Brunel <jjk@...cky.com>
Subject: Re: bpfilter causes a leftover kernel process

Small addentum: Of course I failed to realize this bpfilter helper is
also mentioned in the kernel log:

kern.info: [    8.997711] bpfilter: Loaded bpfilter_umh pid 920

It also seems to be absolutely required when CONFIG_BPFILTER is
enabled, that is I tried blacklisting the module bpfilter, but then
other things (e.g. iptables-restore) just fail to work.

So the process is required, never ends and prevents umouting the
rootfs on shutdown. Unless I'm missing something, there's definitely a
bug there?

Thanks,