Cannot enable tcp_bbr on Almalinux 9

Support
1

Hi community,

I’m running Almalinux 9.3 on Alphavps and I can’t enable the tcp_bbr.

The kernel-modules has been installed as follows and kernel version is 5.14.0.

yum list installed|grep module 
kernel-modules.x86_64                5.14.0-362.8.1.el9_3             @baseos
kernel-modules-core.x86_64           5.14.0-362.8.1.el9_3             @baseos
libmodulemd.x86_64                   2.13.0-2.el9                     @System

It alert a fatal when enable tcp_bbr as follows

modprobe tcp_bbr
modprobe: FATAL: Module tcp_bbr not found in directory /lib/modules/5.14.0

Any help is appreciated.

2

According to dnf provides */tcp_bbr\* such file is in kernel-modules-core packages
and my machine does have:

# ls -l /lib/modules/*/kernel/net/ipv4/tcp_bbr.ko.xz
-rw-r--r--. 1 root root 19188 Sep 12 16:54 /lib/modules/5.14.0-284.30.1.el9_2.x86_64/kernel/net/ipv4/tcp_bbr.ko.xz
-rw-r--r--. 1 root root  7472 Nov  7 22:20 /lib/modules/5.14.0-362.8.1.el9_3.x86_64/kernel/net/ipv4/tcp_bbr.ko.xz

The modinfo tcp_bbr sees it too.

Do you have the file?
If not, does dnf reinstall kernel-modules-core-5.14.0-362.8.1.el9_3 change that?

3

thanks. I’ll give it a try