Hi!

* Salvatore Bonaccorso [Fri Nov 25, 2022 at 05:21:41PM +0100]:

On Fri, Nov 25, 2022 at 02:29:35PM +0100, Michael Prokop wrote:

quoted

* Salvatore Bonaccorso [Fri Nov 25, 2022 at 02:07:25PM +0100]:

quoted

quoted

--- /dev/null
+++ b/systemd/60-nfs.rules

@@ -0,0 +1,21 @@
+# Ensure all NFS systctl settings get applied when modules load
+
+# sunrpc module supports "sunrpc.*" sysctls
+ACTION=="add", SUBSYSTEM=="module", KERNEL=="sunrpc", \
+  RUN+="/sbin/sysctl -q --pattern ^sunrpc --system"

[...]

Thanks for taking care of this problem, Salvatore!

Thanks to you for prodding about it, hope to bring the issue bit
forward with the series proposal.

ACK, thanks, I highly appreciate your efforts!

quoted

AFAICT even latest busybox's sysctl does not support the `--pattern`
option yet:

| sysctl: unrecognized option '--pattern'
| BusyBox v1.35.0 (Debian 1:1.35.0-4) multi-call binary.
| [....]

So any initramfs that uses busybox and its sysctl (like in Debian)
and trying to apply above udev rules might fail?

But would this actually be a problem for us here? There is no hook
script which would copy the 60-nfs.rules (not relevant in initrd) to
the initrd. The rule only would apply on module load outside the
initrd.

Indeed, I also think that as long as this udev rule doesn't end up
in the initrd there shouldn't be any problem with it.

There is only a subset of rules which would be copied into initrd,
like the ones in hook/udev. But 60-nfs.rules would be specific to
nfs-utils, which does not provide a initramfs-tools hook to include
the rules into initrd.

Good point, thanks for checking and clarifying.

Now the question you raise, is, do they need to be handled actually
already as well in initrd? You are correct, when handled through the
previous mechanism with modrobe.d configuration, 50-nfs.conf was added
to initramfs:

usr/lib/modprobe.d/50-nfs.conf 

(and causing the issues seen).

Please correct me if I missed something from the picture.

No, I think you're right and AFAICS we shouldn't see the issues we
originally noticed any longer. Thanks! :)

regards
-mika-