No sch_netem module on Buster 4.4.143-67-rockchip

Erwin_John · February 19, 2022, 8:26pm

modprobe sch_netem

modprobe: FATAL: Module sch_netem not found in directory /lib/modules/4.4.143-67-rockchip-g01bbbc5d1312

How to install sch_netem module on this OS?

Erwin_John · February 22, 2022, 7:43am

anyone from RADXA can help?

jack · February 22, 2022, 9:33am

We need to update the kernel, what is this module for? @Erwin_John

Erwin_John · February 22, 2022, 6:17pm

Hello Jack,

It is a network emulator used to traffic shaping to control bandwidth in an interface. I am building my Rockpi S as a gateway server.
For more info about the module please check:

github.com

torvalds/linux/blob/master/net/sched/sch_netem.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * net/sched/sch_netem.c	Network emulator
 *
 *  		Many of the algorithms and ideas for this came from
 *		NIST Net which is not copyrighted.
 *
 * Authors:	Stephen Hemminger <shemminger@osdl.org>
 *		Catalin(ux aka Dino) BOIE <catab at umbrella dot ro>
 */

#include <linux/mm.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/skbuff.h>
#include <linux/vmalloc.h>
#include <linux/rtnetlink.h>

This file has been truncated. show original

Best regards,
Erwin

Erwin_John · March 1, 2022, 2:05pm

@jack do you have a guide on how to update the module myself or create a new kernel?

jack · March 7, 2022, 9:52pm

Here is the guide to build kernel for ROCK Pi S:

https://wiki.radxa.com/RockpiS/dev/kernel-4.4

PR are welcomed

Erwin_John · March 7, 2022, 9:53pm

Finally!
Thanks @jack