kernel

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    How to repair kernel version

    I install Ubuntu 20.10 in cloud provider and receive # uname -r 4.15.0-60-generic # ls -ls /boot total 147484 248 -rw-r--r-- 1 root root 248258 Jan 18 17:01 config-5.8.0-41-generic 248 -rw-r--r-- 1 root root 248258 Feb 5 03:41 config-5.8.0-43-generic 4 drwxr-xr-x 4 root root...
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    Android Kernel Debugging (kmsg log)

    Hello, So I've been subject to some rather advanced hacking. Long story short, through means of brute force TTY and shell/root manipulation, the hackers have used ADB (android debugging bridge) and trace/printk to debug my kernel and place kernel hooks. (They've done the same to my...
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    What is using (kernel) memory?

    Hi guys, We are seeing an increase in memory usage in some of our servers, but this memory seems to be unaccounted by any tool. I am trying to figure out where this memory is being used. We are currently running an AWS EC2 instance with the following specs: t3.medium instance with 4GB RAM and...
  4. P

    Need help about recompiling linux kernel

    Hi Everyone, i need help about recompiling kali linux kernel on a Raspberry pi 4. The version of my kernel is: 4.19.118-Re4son-v8l+ First i downloaded from https://www.kernel.org/, i chose the version: 4.19.155 After the download, i created a folder called kernel and i run: tar -xaf...
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    Can I update my Kernel so it supports my hardware?

    I would like to use Pop_OS on my laptop, but because my machine is quite new the current kernel version doesn't support certain features on it. I had PopOS installed for a few hours and things like changing brightness levels of my screen wouldn't work, I had pretty bad screen tearing and audio...
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    Files missing in /lib/firmware/amdgpu/ [SOLVED]

    Hello everyone, I bought a new laptop this week and I have problems with the integrated GPU. This is an HP EliteBook 845 G7 with an AMD Ryzen 7 Pro 4750U. I first install Ubuntu 20.04 and upgrade the kernel to 5.8, then 5.8.11 and now I'm on the 5.9.0 rc6. In both 5.8.11 and 5.9.0 rc6 there is...
  7. L

    Audio broken on Asus Fx505 GE - Maybe a kernel bug...

    I have been trying to get my audio working on Asus fx 505GE. My goto distro was ManjaroKDE but I noticed that my on board sound didn't work (It was showing as dummy output in pulseaudio). I searched for a while but nothing worked. I tried alsamixer with no success. I even switched to different...
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    Tp Link wn781nd not working in linux

    I bought a tp link wn781nd ver:3.20 WiFi card to give an upgrade to my old desktop computer. I use kubuntu in this computer but the WiFi doesn't work. When I boot up the computer the WiFi scans appears but disappears after few seconds and never comes back and I am not able to connect to the WiFi...
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    How to remove kernel 3 and add kernel 5 in centos 7

    I'm using Centos 7 and Desktop Version. I executed this command in terminal: >> uname -r 5.6.13-1.el7.elrepo.x86_64 so I'm using kernel version 5 but when i executed this command: >> rpm -q kernel kernel-3.10.0-1062.18.1.el7.x86_64 kernel-3.10.0-1127.10.1.el7.x86_64 kernel 5 doesn't exist...
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    Bash: Determining if CANbus Bitrate is Configured Properly

    I'm working on an embedded Linux (4.1.15) bash script wherein the bitrate of a CANbus may be one of several possibilities. When my module comes online it comes up at the first bitrate in the list, checks for traffic, and, if no traffic, cycles through each bitrate in like manner until traffic is...
  11. M

    drivers: video: logo: Select boot logo on runtime

    Hi, I'd like to know one if my approach towards the following problem statement is correct or wrong, Developer should be able to select a logo on runtime using kernel command line argument or something similar. As far as I see from the drivers/video/logo section, we need to implement some...
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    How to unload a kernel module which is in use and has a recursive module dependency?

    I have a driver for my ELM 327 an it uses the pl2303 module which depends on the usbserial and this again depends on the pl2303 module. What I tried: sudo modprobe -r usbserial pl2303 sudo modprobe -r pl2303 usbserial sudo modprobe -rf usbserial sudo modprobe -rf pl2303 sudo rmmod --force...
  13. O

    kmon: Linux Kernel Manager and Activity Monitor [software release]

    kmon provides a text-based user interface for managing the Linux kernel modules and monitoring the kernel activities. By managing, it means loading, unloading, blacklisting and showing the information of a module. These updates in the kernel modules, logs about the hardware and other kernel...
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    Recovery libraries on RAID CentOS Server

    Hi! I don't know about Linux anything. But on my work I have RAID server with CentOS 5 Kernel system. Recently, something happened with it. Server have a ping, gives out ip addresses, but dont work like a file server and can't log from PUTTY. When I write differend command it show up error...
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    Compiling linux arch mips

    Hello folks! I am very new to Kernel development and wanted to compile the MIPS Kernel, to boot it later with qemu-system-mips64. I followed this guide but could not find any working cross compilers for my host system (Manjaro/ Arch), so I came here in hope of finding someone who can help me...
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    Hello

    Hello there, my name is George, I am 19 years old and I study Informatics and Computer Engineering. I use Linux for almost a year (Ubuntu) and I recently decided to join this forum (I know, a bit late). The reason though(apart from talking about Linux) is because I am really interested in Kernel...
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    NTP sync with HWClock

    Dears, I have a trouble: the output of this command "ntpdc -c sysinfo" gives this: [[email protected]***]# ntpdc -c sysinfo system peer: ************** system peer mode: client leap indicator: 00 stratum: 6 precision: -24 root distance: 0.10782 s root...
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    Not working suspend and hibernation, /dev/snapshot ENODEV

    I'm trying to get suspend working on my box. And the machine can not make the snapshot of the current state. The main problem I think in the following cat < /dev/snapshot -bash: /dev/snapshot: No such device My kernel version is 4.14.114. I tried to adjust the suspend and hibernation on...
  19. M

    Performance/responsiveness loss

    I have a laptop - Acer Aspire 5050 with the following specs: CPU: AMD Turion 64 X2 TL-50 GPU: ATI Radeon Xpress 1100 (200M) RAM: 4 GB The problem is that new Linux has significantly lower overall responsiveness and performance compared to an older one. I currently have a fresh installation of...
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    U-Boot Environment Variables issue

    I am trying to network boot Linux via TFTP and so when it starts up it says on the console, "ipaddr not set". Yet when I print the variable ipaddr it shows the ip address as shown in the image. Everytime I change the u-boot configuration I have to issue the command, "env default -a" because...
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