Re: Error on loading some network Kernel modules

From: Carlos Eduardo de Paula <me@carlosedp.com>
To: David Abdurachmanov <david.abdurachmanov@gmail.com>
Cc: Romain Dolbeau <romain.dolbeau@european-processor-initiative.eu>,
	Vincent Chen <vincent.chen@sifive.com>,
	Paul Walmsley <paul@pwsan.com>,
	linux-riscv <linux-riscv@lists.infradead.org>,
	Aurelien Jarno <aurelien@aurel32.net>
Subject: Re: Error on loading some network Kernel modules
Date: Fri, 31 Jan 2020 11:12:18 -0300	[thread overview]
Message-ID: <CADnnUqdK2RriaCmLTGmFfiGx02qVgwWGae2nZApbeVcSVDsmQw@mail.gmail.com> (raw)
In-Reply-To: <CAEn-LToMfm=G80TmGQZefpmKhKvpGy_=XOoBLGU0a_77ahY+_w@mail.gmail.com>

I just built v5.3-rc4 (tag I currently use) with the patch pointed by
David (https://github.com/bjoto/linux/commit/8a56d1c8e8e91c1bc3893946d52b9217c96e1589)
and report that it works fine.

I've been able to load network modules (nf_conntrack, openvswitch and
others) with no problem. Also tested with Docker that requires
netfilter and others, all working:

> lsmod
Module                  Size  Used by
xt_nat                  4371  4
veth                   21849  0
vxlan                  71685  0
xt_policy               4248  0
iptable_mangle          2375  0
xt_mark                 1510  0
xt_u32                  2272  0
xt_conntrack            4517  4
xt_MASQUERADE           1893  4
nf_conntrack_netlink    48190  0
nfnetlink               8648  2 nf_conntrack_netlink
xfrm_user              39665  1
xfrm_algo               6723  1 xfrm_user
xt_addrtype             4589  2
iptable_filter          2484  1
iptable_nat             2669  2
openvswitch           194024  0
nsh                     3693  1 openvswitch
nf_conncount           11932  1 openvswitch
nf_nat                 41006  4 xt_nat,openvswitch,iptable_nat,xt_MASQUERADE
nf_conntrack          146281  7
xt_conntrack,nf_nat,xt_nat,openvswitch,nf_conntrack_netlink,nf_conncount,xt_MASQUERADE
nf_defrag_ipv6         10727  2 nf_conntrack,openvswitch
nf_defrag_ipv4          2538  1 nf_conntrack
nbd                    39492  2
overlay               137654  0
br_netfilter           22333  0
bridge                221254  1 br_netfilter
stp                     2801  1 bridge
llc                     6044  2 bridge,stp
ip_tables              17472  3 iptable_filter,iptable_nat,iptable_mangle

Carlos

On Thu, Jan 30, 2020 at 1:21 PM David Abdurachmanov
<david.abdurachmanov@gmail.com> wrote:
>
> On Thu, Jan 30, 2020 at 4:00 AM Paul Walmsley <paul@pwsan.com> wrote:
> >
> > On Tue, 28 Jan 2020, Carlos Eduardo de Paula wrote:
> >
> > > I currently run stock Kernel 5.5.0-rc7 on my Unleashed board with most
> > > network features I need baked into the kernel instead of modules.
> > >
> > > I tried building a kernel with these network features as modules but
> > > when loading some of them I got this error:
> > >
> > > root@unleashed:~# uname -a
> > > Linux unleashed 5.5.0-rc7-dirty #4 SMP Fri Jan 24 18:16:43 -02 2020
> > > riscv64 GNU/Linux
> > >
> > > root@unleashed:~# modprobe br_netfilter
> > > [  139.290533] br_netfilter: target ffffffe0000422d8 can not be
> > > addressed by the 32-bit offset from PC = 000000003dfd6deb
> >
> > This is a known issue:
> >
> > https://lore.kernel.org/linux-riscv/1572281840733.3517@european-processor-initiative.eu/
> >
> > https://lore.kernel.org/linux-riscv/20191029105055.GA20736@aurel32.net/#r
> >
> > Vincent is looking into it and I expect there will be a fix soon.
> >
>
> Is this patch solving the problem?
>
> https://github.com/bjoto/linux/commit/8a56d1c8e8e91c1bc3893946d52b9217c96e1589
>
> It was incl. into
> https://github.com/bjoto/linux/commits/rv64-bpf-jit-bcc (not posted
> upstream).
>
> david

-- 
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Carlos Eduardo de Paula
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