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 throttle...
View ArticleHow to disable rfkill after it has been uninstalled from Raspbian
After performing a system update, I suddenly noticed the Wi-Fi on my Raspberry Pi 4 stopped working. No IP address. So I try obtaining a new lease (simple DHCP configuration) with dhclient wlan0, which...
View ArticleSuppressing error message "uvcvideo: Failed to query (GET_CUR) UVC control"
The tech support of the USB camera we use, Intel Realsense, says the error message in subject is benign (github.com/IntelRealSense/librealsense#7099). But as I started a conversation on the same forum...
View ArticleCentOS 8 - depmod warning, systemd-modules-load.service changed
I just ran a dnf update on CentOS 8 to do the usual package updates and, among other updates, there was:Installing: kernel x86_64 4.18.0-240.10.1.el8_3 baseos 4.3 M kernel-core x86_64...
View ArticleHow to correctly create and stop kthreads?
I wrote the following kernel module: #include <linux/module.h> #include <linux/kernel.h> #include <linux/delay.h> #include <linux/kthread.h> #include <linux/sched.h>...
View Articlehow can i see the driver in use you a curien device thats does not seam to be...
I am trying to find the driver in use for my touch screen but lspci don't seam to see ithowever runing cat /proc/bus/input/devices i can see it asI: Bus=0018 Vendor=0000 Product=0000 Version=0000N:...
View ArticleWhat does 'modules linked in' mean in call trace?
In a call trace we see:WARNING: CPU: 3 PID: 123456 at xxxxxxxxModules linked in: cmac md4 cifs ccm ipt_MASQUERADE nf_nat_masquerade_ipv4 xt_conntrack ipt_REJECT nf_reject_ipv4 iptable_nat...
View ArticleHow do I disable the PC speaker (beep) on Debian (Buster)?
The Archlinux Wiki says how to blacklist the pc-speaker module.But that does not work with debian. Can anybody please help me?PS: Small concretion: I am using Gnome and would like to silence the beep...
View ArticleDeleted /lib/modules/ by mistake. How to recover?
I accidentally deleted my /lib/modules/<kernel version directory>.Here's the full output of sudo rm -rfv /lib/modules/4.14.98+ : pastebinIs there a way to restore the modules keeping the system...
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Your kernel headers for kernel 2.6.32-504.e16.x86_64 cannot be found
I have centos 6.6 installed on virtualbox. In order to use features like copy/paste, being able to share folders, etc, I need to install Guest additions on it. I've clicked Device -> Insert Guest...
View ArticleBringing Can interface up - Operation not supported
I am trying to use a Can module but I get an error message with the following commands:$ sudo modprobe can$ sudo ip link add dev can0 type canRTNETLINK answers: Operation not supportedI have checked...
View ArticleHow to remove/disable the insertion of a driver added with depmod -a?
I added my custom driver to be inserted automatically at boot using:cp ./driver/mydrv.ko /lib/modules/$(uname -r)/extra/depmod -aNow I'd like to update with a new version of the driver, I launched the...
View Articlemanually certified virtualbox kernel modules. difficulties. everything okay now?
So I have efi-secure-boot installed and while installing vbox during reboot I forgot to switch to enter-key. so afterward I got the same errormessage as herei first followed the instruction on the...
View Articledoes a kernel module that mounts archives as read-only directories could be...
recently I'm wondering why program installed on linux systems are just archives extracted inside system paths and not just archives mounted as read-only entry-points.As far as I understood, Android apk...
View ArticleUnderstanding linux Ethernet devices
I have a small, embedded, completely self cross-compiled installation on a mips SoC.SoC is based on a Mediatek MT7628 sporting a Wifi interface (2.4MHz only), a 100Mbps Ethernet MAC and an internal...
View ArticleAllocate RAM block device faster than Linux kernel can normally allocate memory
BackgroundI'm trying to download about 150GB to a newly-created Linux box (AWS EC2) with 100gbps network connection at full speed (12.5GB/s) or close to that. The network end is working well. However,...
View Articlevermagic of the module different from the kernel version that it was compiled...
Hello everyone I am getting a strange string after my kernel version, in my module binary.uname -r5.11.0-rc7-eudyptula-FireBytZ-dirtySource of the module with Makefile:...
View ArticleUnexplained ping delay with "USB to Ethernet" adapter
I am running Linux with old kernel 3.10 on custom board with Huawei HiSilicon ARM Hi3536 chip.The board includes 2 identical USB 2.0 ports. According to HW engineers there is nothingin between of these...
View ArticleHow to best install v4l2loopback on Linux Mint?
I am trying to create a virtual webcam from OBS(26.1.1) so I can feed it to Zoom. I am Linux Mint 20.1 Cinnamon, version 4.8.6, Kernel 5.4.0-64-generic.I did:sudo apt-get install v4l2loopback-dkmssudo...
View ArticleDisable bridge module insert?
I have Fedora 20 setup with default kernel configuration, where bridge feature is enabled as a module (CONFIG_BRIDGE=m), and the bridge module loads as the system starts. I don't understand who...
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