Articles about kernel | UserComp.com

Unable to permanently adjust hard/soft open files limit on Debian 12 with kernel 6.1.0-32-amd64

This article provides a solution to the issue of being unable to permanently adjust the hard and soft open files limit on a Debian 12 workstation running kernel 6.1.0-32-amd64, despite having more than sufficient memory.

Diagnosing Kernel Issues on Lenovo ThinkPad T14 Gen1

This article provides a guide on diagnosing kernel issues on Lenovo ThinkPad T14 Gen1. We will go through the necessary steps to generate the required JSON structure, not the full article. The content generated should not be explained, and the JSON output should be the focus. We will not generate additional content, only JSON content. The article body will not be included, as a separate request will be made for that. The JSON output will be stripped of whitespace. Here's the generated JSON output.

Troubleshooting Kernel Issues on Lenovo Thinkpad T14 Gen 1 (Intel i7) with Ubuntu and Debian

Having trouble diagnosing kernel issues on your Lenovo Thinkpad T14 Gen 1 (Intel i7) while using Ubuntu or Debian? This guide outlines the steps taken to troubleshoot these issues, including trying kernel versions 6.56.13 (mixed distro, supplied, and compiled) and 6.8+. Read more to find out how to diagnose and resolve these problems on your tech support site.

Compiling Linux Kernel with Intel LLVM (icx) Compiler: A Step-by-Step Guide

Learn how to set up the environment and use the icx compiler to compile the Linux kernel. This guide covers enabling the icx compiler and passing the necessary flags. Follow these steps for a successful compilation.

Debian Live-Build: Live System Kernel Installer - Kernel Doesn't Match

This article guides you through a common issue when using Debian Live-Build to create a custom live Debian ISO that boots automatically with SSH enabled and remotely installs servers using the Debian installer launcher. The issue arises when the kernel version installed during the live system creation doesn't match the one used by the Debian installer launcher.

How to Generate Preprocessed Head for Linux Kernel Source Code

Learn how to generate preprocessed head for Linux kernel source code. This tutorial will guide you through the process of obtaining a preprocessed output head for the Linux kernel, providing you with step-by-step instructions. If you're looking for a way to understand the behavior of the Linux kernel, this is the right place to start. Read more to get started with tech support.

Compiling Linux Kernel with Custom CFLAGS using Intel DPC++

Learn how to compile the Linux kernel with custom CFLAGS using Intel DPC++. This guide will walk you through the process of setting up the environment and adding the required flags to compile the kernel with Intel's DPC++ compiler. This guide is useful for developers who want to optimize their kernel for Intel's Skylake processors with AVX2 support.

Downgrade Kernel Ubuntu 24.04.1 LTS Restore AMD GPU Undervolting

This article explains how to downgrade the kernel on Ubuntu 24.04.1 LTS to restore AMD GPU undervolting. Follow the steps to downgrade the kernel and regain control over your GPU's power consumption.

Understanding the Impact of Superblock Size on Ext4 Filesystem in Linux Kernel

The size of the superblock in the Ext4 filesystem can affect the overall performance and functionality of the Linux kernel. Since the block size can vary from 1Kib to 64Kib, it is important to understand how the superblock size can influence the system's behavior. This article provides an overview of the superblock in Ext4 filesystem and how its size can impact the Linux kernel.

Cryptsetup LUKS on Kernel 3.4.38: A Guide for Tech Support

Learn how to use cryptsetup LUKS on Kernel 3.4.38 with this comprehensive guide. This article covers cryptsetup 2.3.4, LVM 2.2..02.184, and OpenSSL-1.0.2. Follow these instructions to format your device with cryptsetup LUKS and ensure secure encryption. Suitable for tech support professionals seeking to bolster their knowledge of LUKS and kernel version 3.4.38.

Passing boot args to kernel in QEMU without append

Learn how to pass boot arguments to the kernel when using QEMU without the append option. This guide covers the process for Linux users.

Linux Kernel cgroup v2 and SCFS Scheduler: CPU Throttling and Multiple Threads

This article discusses the Linux Kernel's cgroup v2 and SCFS Scheduler, focusing on CPU Throttling and how it affects multiple threads. We will delve into the concept of throttled_usec and how it can cause a cgroup to be throttled for a specific period.

Linux Kernel cgroup v2: SCFS Scheduler - Throttled Usec Accounting for Multiple Threads

Exploring the Linux Kernel's cgroup v2 and SCFS scheduler, we delve into the behavior of throttled_usec accounting when multiple threads are involved. Specifically, we address the question of whether a single throttle period applies to all threads or if each thread has its own throttle period.

Building Old QLA2xxx Driver for Kernel 4.10.17 on Debian 12

This article guides you through the process of building the old QLA2xxx driver for Kernel 4.10.17 on Debian 12. Follow the steps to successfully install the driver on your Intel Atom mainboard.

Upgrading Intel Atom 330 Driver on Debian 12 with Kernel 4.10.17 to 6.1

Learn how to upgrade the Intel Atom 330 driver kernel on Debian 12 from 4.10.17 to 6.1 for improved performance and compatibility. This SEO-optimized article will guide you through the process with ease.

Possible to Install New Kernels in Lubuntu with Physical Access and Encrypted Home Partition?

Explore the possibility of installing new kernels in Lubuntu when the home partition is encrypted and mounted on a separate partition, requiring a password before accessing the system.

Installing New Kernels Without Knowing System Password on Lubuntu with Separate Home Partition and Encrypted Home

This article provides instructions on how to install new kernels on Lubuntu with a separate home partition and an encrypted home, without knowing the system password.

Syntax Highlighting for dmesg Kernel Log Output in Kate Text Editor (KDE) - Tech Support

Learn how to enable syntax highlighting for dmesg kernel log output in the Kate text editor in KDE. This tutorial covers the steps for Kate version 22.12.3 on Debian 12 (Bullseye) stable and may vary for other versions. Enhance your Linux command line experience and improve code readability with this simple guide. Read more for detailed instructions.

Linux Mint VirtualBox Error: Kernel Driver Not Installed (RC=-1908) when Running Windows 10 for CNC, 3D Printer, or Laser Cutter

This article explains how to resolve the Kernel Driver Not Installed (RC=-1908) error when attempting to run Windows 10 as a guest operating system in VirtualBox on Linux Mint for CNC, 3D printer, or laser cutter projects.

Troubleshooting Relationship between Keyboard, Display Manager, and Kernel Logs

Having trouble with your keyboard's random erratic behavior? Check the kernellogs (dmesg), /var/log/journal (journalctl), and /var/log/Xorg.0.log[less Xorg.0.log|grep -i 'keyboard'] for any related issues. This guide will help you interpret the logs and provide solutions to common problems.

Improving Media Players with FFmpeg Kernel Driver API?

Exploring the potential benefits of integrating FFmpeg with a kernel driver API to enhance media player performance, offering better access to GPU file systems, and offloading specific workloads. A must-read for tech enthusiasts.

Screen Resolution Automatically Changing in Wine Games on Linux Kernel 5.15

Users report that Wine games automatically change the screen resolution on Linux kernel 5.15. This article provides a solution to accept the default resolution instead.

Understanding Secure Boot and Signed Kernel Modules

Exploring the concept of Secure Boot and the importance of signed kernel modules in an x86 system. Testing a non-signed kernel module with a secured boot version 4.9.20 (x64) brings up questions on its functionality.

Kernel Messages: MDSCPU Bug Detected with SMT - What You Need to Know

Kernel messages indicating the presence of the MDSCPU bug in SMT can suggest possible data leaks. Learn more about this issue and how it can affect your system.

USB Camera PTZ Control Not Working on Linux Kernel 5.10.43: A Troubleshooting Guide

Having trouble with USB camera PTZ control on Linux Kernel 5.10.43? This article provides a comprehensive troubleshooting guide for users experiencing issues with relative PTZ control functions while using Android 10 devices and the V4L2 framework. Learn how to resolve this common problem and get your USB camera up and running smoothly.

Fixing VirtualBox Error: Kernel Driver Not Installed on Ubuntu 22.04.4 LTS

Learn how to fix the 'Kernel driver not installed' error in VirtualBox 6.1.32 while hosting VMs on Ubuntu 22.04.4 LTS. Follow our step-by-step guide to get your virtual machines up and running again.

Getting EFI Stub Included in NixOS: A Linux Kernel Build Guide

Learn how to get the EFI stub included in your NixOS Linux kernel build. This guide covers the necessary steps and required packages.

Understanding SmartBoot: A Kernel Function for Saving and Loading Needed Objects in RAM

The boot process can be quite tedious as the kernel reloads every needed object into RAM. One day, wondering if there's a way to take a snapshot of the kernel, the concept of SmartBoot came to light.

Upgrading Ubuntu: Checking Installed Kernels in the Boot Partition

Learn how to check Linux kernels still installed in your Ubuntu system by examining the /boot partition, ensuring a successful upgrade.

Best Places to Set Kernel Module Options in Debian Linux

Learning the best places to set kernel module options in Debian Linux. Persistent module options can be set in /etc/default/grub or /etc/modprobe.d, but the latter seems less messy. Keep learning.

Identifying Filesystem Kernel Modules Used for Mounting

Learn how to identify the kernel modules used for mounting specific filesystems in Linux.

Upgrading Linux Kernel Version without Compiling Everything: Incremental Patches

Learn how to upgrade a Linux kernel version using incremental patches without the need for recompiling everything. Preserve system stability and save time.

Compiling an Older Version Kernel for Bullseye (Debian) to Run Older Linux Applications on VirtualBox

Learn how to compile an older version kernel for Debian Bullseye to make it compatible with older Linux applications in VirtualBox.

Resolving Kernel Panic During New NVMe SSD Installation on CentOS 7

This article provides a solution for resolving a Kernel Panic issue during the installation of a new NVMe SSD on a CentOS 7 (7.6.1810) system.

Enabling GPIO sysfs interface for Yocto Mickeyboard in Linux Kernel

Learn how to enable the GPIO sysfs interface in a Yocto Mickeyboard Linux image to run an application that requires GPIO access.

Lenovo Legion Laptop Auto Shutdown: Kernel Message, Blue Screen, Windows Stop Code

Users report their Lenovo Legion laptops are suddenly shutting down due to a kernel message and a blue screen with a Windows stop code. This article explains possible causes and solutions.

Custom UEFI Application Boot: Testing with QEMU and GDB

Learn how to test a custom UEFI application by booting it with QEMU and using GDB for debugging. This guide covers the basics of UEFI application development and debugging.

Creating an ETL File via Memory Dump for DPC/ISR Log Analysis: 0x133 BugCheck

Learn how to create an Extensible Markup Language (ETL) file using a memory dump for in-depth analysis of DPC (Deferred Procedure Call) and ISR (Interrupt Service Routine) logs with a 0x133 BugCheck. This tutorial covers the use of WMI (Windows Management Instrumentation) and kernel dump.

WhatsActive Linux Kernel Developers Forum: Answering Newbie Questions

Find answers to your newbie questions about Linux kernel configuration, compilation, and understanding in the WhatsActive Linux Kernel Developers Forum.

Booting Custom Kernel with UEFI in QEMU

Learn how to boot a custom kernel using UEFI in QEMU. This guide covers the necessary steps and commands for a successful boot process.

Linux Breaking NTFS Filesystems on Kubuntu 22.04 with Kernel 6.5.0-28

Users of Kubuntu 22.04 with kernel 6.5.0-28 have reported system stuttering issues since an unassisted update. Initially, they suspected RAM problems, but it appears the NTFS filesystem is being affected.

Linux: Cache Coherency DMA - Understanding DMA Handle and Sync in Kernel

In this article, we explore the concept of DMA Handle and Sync in the context of Linux kernel and its role in Cache Coherency. We delve into the details of dma_map_single() and dma_sync_single_for_device() functions.

Can Linux Kernel Access Page Table Virtual Memory?

The Linux kernel can interact with page tables, which manage virtual memory mappings. While it doesn't directly access virtual memory, it uses page tables to manage and manipulate the mapping of virtual addresses to physical addresses. Therefore, the Linux kernel indirectly manages virtual memory through page tables.

Understanding Real Memory and Creating Kernel Modules in Linux: A Case Study with Alcatel OneTouch Pixi Avion (A571VL)