Use this tag for questions about loading, configuring, or compiling them. See also /drivers for questions about which modules to use for specific hardware. A kernel module is a bit of code that can be added into the kernel by the administrator while the system is running, typically providing one ...

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1answer
35 views

Will linux eventually support ALL old hardware? [on hold]

I bought a Dell Inspiron 7520 SE (Special edition) and I faced/am facing drivers issues. Now I know that my graphics card vendor (ATI) isn't fully supporting Linux or may be only my distro (Ubuntu) ...
3
votes
1answer
21 views

How do I persistently load a kernel module in Fedora 20?

I have successfully followed the instructions for setting up 802.1q VLAN tagging in Fedora. Now I need to make sure that when I reboot the 8021q kernel module is loaded again. Should I be doing this ...
0
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0answers
15 views

Immutable file system [on hold]

I have installed Virtual box on my RHEL 5.6 and I have already installed Fedora 13 as a guest OS on it. I want to make the file system immutable for fedora 13.
3
votes
1answer
35 views

Module marked (F) in /proc/modules

On my 3.10 system some of modules listed in /proc/modules are marked (F). I'd like to find the cause of this (F). I am sure modules were not forcefully loaded and were built with the Kernel. Could ...
0
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0answers
39 views

Write failed : broken pipe on ARM [on hold]

I'm trying to insert a kernel module (which is kaodv.ko) into my ARM (Sabrelite). After I successfully cross compile my module, I wanted to insert it. To do this, I've copy the file through ssh, and ...
5
votes
4answers
3k views

How to determine which module taints the kernel?

My kernel keeps panicking when connected to a certain wireless network. I'd like to send a bug report but my kernel is apparently tainted. From /var/log/messages: Apr 17 21:28:22 Eiger kernel: ...
2
votes
1answer
2k views

Unable to load module: Disagrees about version of symbol module_layout

Following this tutorial to write my first driver. The Makefile is: # Makefile – makefile of our first driver # if KERNELRELEASE is defined, we've been invoked from the # kernel build system and can ...
0
votes
0answers
9 views

LVM2 Mirror Support Missing from Kernel after System Migration

I had a system that was running on a small netbook that had LVM2 set up to group two external USB hard drives into a volume group, and to use that volume group to create a mirrored logical volume. ...
0
votes
2answers
34 views

Is it bad to have too many Kernel modules?

I'm trying to compile a Linux kernel to debug an issue I have on Arch Linux, and I was configuring modules, but I didn't know what a lot of the stuff was so I left them on. If this kernel works I ...
1
vote
0answers
30 views

drm Kernel v>3.11 Issues

Just a regular Fedora 20 user here (coming from no answers on ask.fedoraproject.org). I'm having some issues with the most recent kernel versions. The last working (no black line) kernel I have ...
4
votes
2answers
12k views

How to solve “building the main Guest Additions module Failed”

I tried to install the VirtualBox Guest Additions module in a VM guest running CentOS but I get this error message when everything else was okay: building the main Guest Additions module Failed ...
0
votes
0answers
37 views

Failure loading kernel module

I've followed the steps at Build Your Own Kernel Modules (CentOS) but when I modprobe it fails: [root@centos7 ~]# modprobe pcnet32 modprobe: ERROR: could not insert 'pcnet32': Exec format error ...
1
vote
0answers
24 views

“disagrees about version” message

I get a message "disagrees about version" on boot time, after compiling kernel and modules with KGDB. Why should this happen ? Is there any problem with KGDB ? This is the relevant log at boot: ...
0
votes
0answers
63 views

Upon bootup, all iptables are lost because the kernel module ip_set is not loaded

i can get iptables to whitelist / blacklist using ipset members, but after a reboot, the iptables are emptied out because the kernel module is not loaded. Have limped along in the past by customizing ...
2
votes
1answer
37 views

load module via /etc/modules

I want to load my kernel module hello.ko on boot in Ubuntu 12.04. I placed it in /lib/modules/3.8.0-31-generic/kernel/ubuntu/hello.ko, ran depmod -a, and added "hello" to /etc/modules. However, when ...
4
votes
2answers
58 views

Trigger an init script when a specific device is up and a kernel module has been loaded

On my ubuntu 12.04 servers, I need to write an init.d script that waits until the infiniband interface (device: mlx4_0, interface: ib0) is completely up, and until the knem kernel module is loaded. ...
1
vote
0answers
38 views

What does __ prefix before some kernel api's convey?

Why do some function calls in kernel specially have this prefix __ example: __init initialization(void) is __init a macro? What does this convey? Are these a special class of function calls inside ...
0
votes
0answers
12 views

Module load map

How can I obtain a module load map? I've tried with the -m flag in insmod but it seems that since 2.6 there is no support for it. Thanks
5
votes
1answer
334 views

Loading speedstep_centrino kernel module

Because of a noisy fan in my laptop, I need to change CPU frequency and for this task I need to load the appropriate kernel module. The CPU in my laptop Acer TravelMate 4002WLMi is: $ cat ...
2
votes
2answers
199 views

IPv6 NDP timer problem

Need to change Fedora Linux's IPv6 stack for NDP DAD timer changes. How to locate the Fedora's IPv6 and IPv4 stack in Fedora distribution dvd/site so that, we can recompile and generate new stack ?
2
votes
1answer
889 views

Scaling issues of i7 3520M with intel_pstate module on Kernel 3.10.0

Few days ago I updated my openSUSE 12.3 system from Kernel 3.9.8-1.gf3348a8-desktop to 3.10.0-1.g3dcd746-desktop and since then, turbo mode of my i7 3520M is enabled by default and it does not ...
3
votes
1answer
37 views

How do I find out what filesystem drivers are compiled-in into the linux kernel?

On a running linux system, what is a portable (among linux distributions) way to find out what filesystems the current kernel has compiled-in (not through modules) support for? Consider for example ...
5
votes
2answers
3k views

Find out which modules are associated with a usb device?

Could you recommend a way to figure out which driver is being used for a USB device. Sort of a usb equivalent of lspci -k command.
1
vote
0answers
63 views

Is this kernel warning a major problem that needs my attention?

Our Linux based Thecus N12000 NAS recently experienced this message in its dmesg log. [2014-05-21 11:34:56] ------------[ cut here ]------------ [2014-05-21 11:34:56] WARNING: at ...
2
votes
2answers
92 views

How can I install Fedora with a newer kernel?

I want to install Fedora on my computer with a netinstall, but it seems that the kernel doesn’t support my ethernet chip (Intel I218V). I tested Ubuntu 14.04 and Arch Linux and the ethernet chip ...
1
vote
0answers
25 views

CPUFreq Kernel module

I would like to try the CPUFreq module on my board (Marvell Soc based on ARMv7 running a v3.15 linux kernel). My architecture is obviously not supported by the default source code (located in the ...
1
vote
1answer
103 views

aircrack-ng shows negative channel

On many Linux distributions, be it BackTrack, Kali, BackBox, Ubuntu, Mint, etc., whenever I use anything from the aircrack-ng suite my wireless card is shown as channel -1. This problem has been ...
1
vote
1answer
22 views

Which kernel module name is currently correct “usb-storage” or “usb_storage”?

I have found a number of examples how to prevent a kernel module from being loaded. One of them is about USB storage module. The next code has been provided: echo "blacklist usb-storage" | sudo tee ...
1
vote
1answer
49 views

unrecognized inateck hdd enclosure with linux Mint

I have put in a Hitachi 2.5 inch hdd inside a Inateck hdd enclosure. I have connected the enclosure to a Toshiba R630-156 using a usb2 cable on a usb3 enclosure port. I can hear and feel the hard ...
0
votes
0answers
24 views

Calling speaker-test from usermode-helper API

I needed to call come audio-producing applications from kernel in a toy module. In order to test that, I thought of calling speaker-test from a simpler module, but no sound would ever come from it. I ...
0
votes
0answers
27 views

Virtual serial port problem

Background: I've to test external GSM module, connected to PC with serial port. Since I'll have to either send messages both to do more, I need to create two virtual serial port (script provided by ...
1
vote
0answers
89 views

How to get an Wacom Intuos CTH-480 to work under Easy Peasy 1.6 (Ubuntu 10.04)?

Is there any way to make a Wacom Intuous CTH-480 work under Easy Peasy 1.6 (Ubuntu 10.04)? I have installed the Wacom Driver files according these instruction, replacing 3.7 with 2.6.30, as Easy ...
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votes
2answers
22 views

Check multiple files with string

i.e. for each .csv file, do the following: Check if the file contains the string “HEADER” in the first line. If its missing, do the following: Display, “ERROR: Missing HEADER record for ” Rename ...
1
vote
0answers
31 views

Opensuse remove kernel module

I recently installed OpenSuse. I have a problem with the mouse left click. I had the same problem in Debian but when I removed the psmouse module everything started working perfectly. I tried the same ...
2
votes
0answers
64 views

How can I set up an offbrand display link (Trulink) to work with arch linux?

I recently bought a USB to DVI adapter and it works great in Windows. However, I wanted to use it on Arch since that's where I do most of my work. Unfortunately it doesn't work. I've installed all ...
2
votes
1answer
118 views

kmod-staging-3.14* on Fedora 19?

I use Fedora 19 (Schrödinger’s Cat) on most computers as I prefer it over others (I probably would use Fedora 20 if I could have Gnome 3.8 plus a few other packages). My problem is that I use ...
2
votes
1answer
24 views

200+ instances for fglrx?

I was browsing the basic info about the modules that my kernel is currently using on a machine I have, and this piece of information pops up. $ grep fglrx /proc/modules fglrx 8085343 200 - Live ...
1
vote
1answer
65 views

From Python script to Kernel Module [closed]

So I have a python script that emulates an ESC_KEY on pin 17 (Raspberry Pi). #!/usr/bin/env python #Imports for Pins,input import RPi.GPIO as GPIO import uinput from time import sleep #Setup ...
3
votes
2answers
6k views

Ubuntu make fails with No such file or directory /lib/modules/3.4.0/build

I am trying to build the CP210x driver for the 3.x.x kernel on ChrUbuntu. Build instructions: Ubuntu: make ( your cp210x driver ) cp cp210x.ko ...
1
vote
1answer
374 views

Virtualbox kernel modules not loading at boot

I have been running virtualbox on an Ubuntu 12.04 laptop for a while and it has all worked smooth, but suddenly, probably after a kernel upgrade, the vbox* modules are not loading at boot, if I ...
2
votes
0answers
62 views

kernel build: why does 'make install' complain about missing modules?

I'm building a 3.2.x kernel on a RedHat Enterpise system. During 'make install' it takes a very long time and is complaining : ERROR: modinfo: could not find module xxx I assume its probing ...
1
vote
1answer
21 views

How to preserve .d files after kernel compilation?

I'm compiling third-party kernel modules. Their build system goes to /usr/src/linux-headers-[version] (of a custom kernel chroot) and runs make from there. I want to find out, which files - sources ...
3
votes
0answers
381 views

How to compile AMD Legacy driver on 64-bit kernel, Linux Mint 17 [closed]

I'm trying to get the legacy driver for my HD 2400 GPU but I had an error while it was building. I looked at this answer, and have the same result, in the driver manager is empty: ...
8
votes
5answers
3k views

Benefit of kernel module compiled inside kernel?

What's the benefit of compiling kernel modules into the kernel (instead of as loadable modules)?
1
vote
1answer
30 views

Compress memory on low Ram VM

Is there a way to get out more out of your limited Ram on a VM? I have a VM running on a cloud hoster and try to optimize a quite low on RAM mashine. I heard, there is a way to compress parts in the ...
0
votes
0answers
107 views

Virtualbox installation

I'm trying to install virtualbox. But when I run dpkg -i {dpkg package} I get following error: sudo dpkg -i virtualbox-4.1_4.1.18-78361~Ubuntu~precise_amd64.deb Selecting previously unselected ...
1
vote
0answers
52 views

EDAC (Error Detection And Correction) infrastructure in linux kernel

I am wondering how I can make use of the EDAC infrastructure in linux kernel. I have a i7-4600M CPU and I have compiled EDAC as a module in my kernel: --- EDAC (Error Detection And Correction) ...
1
vote
0answers
65 views

CPU usage by kernel modules, routing and forwarding rules

I have a system with a loopback kernel module installed. Through a bunch of routing and iptable rules, packets coming out of the loopback interface are sent over an ipsec tunnel. I am seeing that ...
1
vote
0answers
33 views

Adding IPVS to the kernel

I am trying to setup keepalived on a pair of VPS load balancer servers. I have hit the road block of IPVS not being included with the kernal. IPVS: Can't initialize ipvs: Protocol not available I ...
3
votes
1answer
155 views

Library routines in linux kernel

In the linux kernel, there is a section "Library routines" with a snippet shown below: Library routines ---> <M> CRC-CCITT functions <M> CRC ITU-T V.41 functions <M> CRC7 ...