Control: tags 1024082 + upstream
Control: forwarded 1024082 https://lore.kernel.org/linux-nfs/Y1KoKwu88PulcokW@eldamar.lan/

On Mon, Nov 14, 2022 at 03:45:42PM +0100, Marco d'Itri wrote:

On Nov 14, Michael Prokop <mika@debian.org> wrote:

FYI: I reported this one as #1024082, looks like the new /lib/modprobe.d/50-nfs.conf file is causing quite some problems.

At this point we have established that for good or for worse kmod is
behaving as documented, so we are down to one of:

- initramfs-tools learns to parse the install directives
- nfs-kernel-server uses udev rules instead

I recommend the second option, which is much more general and robust.

FWIW, I asked a while back upstream about it, and they would be open
to change this.

https://lore.kernel.org/linux-nfs/Y1KoKwu88PulcokW@eldamar.lan/
and https://lore.kernel.org/linux-nfs/166656275785.12462.14027406790454668194@noble.neil.brown.name/

But it needs someone who is implementing the change and submits it
upstream. Michael, would you be able to work on this and submit the
change upstream? Once accepted there we can happily cherry pick it for
us.

We should not diverge to much from upstream at this point, this was
exactly one of the problems that nfs-utils remained for ages at an
ancient 1.3.4 based version. Now we have reduced the delta massively,
which helps keeping on track with upstream versions.

Regards,
Salvatore

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Try something like this in /lib/udev/rules.d/60-nfs.rules:

ACTION=="add", SUBSYSTEM=="module", KERNEL=="sunrpc", \
RUN+="/sbin/sysctl -q --pattern ^sunrpc --system"
ACTION=="add", SUBSYSTEM=="module", KERNEL=="rpcrdma", \
RUN+="/sbin/sysctl -q --pattern ^sunrpc.svc_rdma --system"
ACTION=="add", SUBSYSTEM=="module", KERNEL=="lockd", \
RUN+="/sbin/sysctl -q --pattern ^fs.nfs.n[sl]m --system"
ACTION=="add", SUBSYSTEM=="module", KERNEL=="nfsv4", \
RUN+="/sbin/sysctl -q --pattern ^fs.nfs.(nfs_callback_tcpport|idmap_cache_timeout) --system"
ACTION=="add", SUBSYSTEM=="module", KERNEL=="nfs", \
RUN+="/sbin/sysctl -q --pattern ^fs.nfs --system"

Differently from the original file I tired anchoring the patterns, which
looks more correct to me.

--
ciao,
Marco

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--- SoupGate-Win32 v1.05
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