Questions tagged [kernel]

The main component of most operating systems, the kernel manages most of a computer's communication between hardware and software. Typically, the kernel is the lowest level of abstraction a programmer can have to a resource.

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rsync + failed on error with Bad file descriptor

usually we not have this issue so its very rare! but today we got the following error when we are using rsync to copy files . when files - pkg_gh are with 1-3G size the error is like this Warning: ...
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How can I change the system name from Linux to Windows in Debian?

I have a good idea for me. So I want to be able to change the system name from Linux to Windows. So, if I views the specific website, that web site should get the my system name as Windows. E.g. Steam ...
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Unable to boot into Kali Live USB(no working init found)

I created a bootable live KALI Linux drive. After running it, it is stuck at a message - [end kernel panic - not syncing: No working init found. Try passing init= option to kernel.] I tried creating ...
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Kernel file not found error?

I am was installing PrimeOS(android os) and it came with a installer after installation the system restarted and an error came while booting "error: no such device: //android/kernel", the ...
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Starting my kernel driver (StartService) results in 0x124 bluescreen due to a machine check exception due to L2 cache bank 6 error on processor 0

When I start my driver manually using StartService, or other means, or when it's loaded by the system automatically when set to auto_start causes a bluescreen before DriverEntry is reached. Microsoft (...
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How do I increase the max open files in macOS Big Sur?

I have heard sudo launchctl limit maxfiles 64000 unlimited And conf=/etc/sysctl.conf if sudo cat $conf | command rg kern.maxfiles ; then ecerr "kern.maxfiles is already set in $conf" else ...
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Missing NVIDIA scripts and C files after kernel 5.8.0-45 update

I have just upgraded to Kernel version 5.8.0-45 in Ubuntu 20.04 LTS. However, this seems to have broken the NVIDIA drivers. I have isolated the problem to the linux-image-nvidia-5.8.0-45-generic ...
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Manjaro no irq handler for vector

When booting and at shutdown my relatively fresh install of Manjaro (uname -r: 5.9.16-1-MANJARO) on my HP Spectre x360 Convertible 13-ac0XX I get a an error message: [ +0,000425] __common_interrupt: ...
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Prevent Service Sleeping Machine

I have an Asus G15 (GA503QS), and on this machine I have a service, the Asus Optimisation Service. As far as I'm aware, this service, amongst other things, prevents my battery from charging above 60% ...
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Why kali linux unable to boot on newer kernels?

I have updated kali Linux from 2019.4 to 2020.4 and now to 2021.1 but I'm unable to boot from the newly installed kernel(as kernel 5.8 in 2019.4, kernel 5.9 in 2020.4 and kernel 5.10 in 2020.1) and ...
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openibd.service is failed on particular node

Please find the "openibd.service" status. [compute-5 ~]$ sudo systemctl status openibd.service ● openibd.service - openibd - configure Mellanox devices Loaded: loaded (/usr/lib/systemd/...
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How to connect modem with wvdial?

I have some problem during trying run command "wvdial", because i got error like: --> WvDial: Internet dialer version 1.61 --> Warning: section [Dialer Defaults] does not exist in ...
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Modify a Ubuntu dkms file to Debian

Hi I was trying to install this kernel patch HP p410i. https://medium.com/@terryjx/enable-it-mode-on-hp-smart-array-p410i-raid-card-on-hp-dl380-gen7-servers-4e827eeb78ca On following this guide I was ...
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Which Linux kernel to use for Xeon-D CPU?

Intel has a series of Xeon E and Xeon D CPUs. These CPUs have different features and functions although they are all x86_64. Installing a generic Linux OS(i.e. kernel 3.10) will work on this for ...
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White screen after Fedora update

First of all, I would like to clarify some information: this post may seem similar to others already present on this forum but I haven’t found a solution to my problem. I also didn’t find a solution ...
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Google Chrome and some other application temporarily freeze Archlinux

Some application keep temporarily freezing. This happens most of the times with Google Chrome, electron based app like discord teams, terminal like kitty and alacritty, robo3t. It works fine with ...
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Forced insertion “incompatible” module in kernel

I want insert module with source code missed in newer kernel (for simplicity x.y.z+1 version change). modprobe don't do this. How to change vermagic of module or force insmod or modprobe load module? ...
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Preventing the installation of kernel drivers on Windows

Is there a way to prevent programs from installing kernel modules on a Windows 10 system? either something that just denies the permission to add kernel modules (even if they are signed), for example, ...
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Serva Kali 32-bit live kernel panic no working init found

I am trying to boot an Intel Pentium 4 based 32-bit architecture PC through Serva PXE server. I have set up Serva (https://www.vercot.com/~serva/) on a Windows 10 machine with the following settings: ...
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Elan Touchpad linux kernel drivers not working

Kernel version used is 5.9.11. The touchpad is detected, but there is no communication with the device.
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Why there is no cpufreq under /sys/devices/system/cpu/cpu0/?

Why there is no cpufreq under /sys/devices/system/cpu/cpu0/? I want to read current cpu frequency but I didn't find cpufreq under /sys/devices/system/cpu/cpu0/. In kernel I enabled CONFIG_CPU_FREQ. $ ...
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Intel CPU CONSTANTLY Throttled to Lowest Frequency - Ubuntu 20.04

I am at my wits end here and could use some additional input. Long story short (more detail below), my system keeps throttling the CPU speed and I am unable to recover until I am able to unplug the ...
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1answer
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Can't boot without an initrd

I want to boot my system without an initrd and I compiled a custom kernel. I added everything I needed (filesystems, device drivers etc.) and they aren't modules. But when I try to boot without an ...
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I can't boot my VM(Ubuntu) after linux kernel build, install

I am trying to study the Linux kernel using Virtual Box + Ubuntu I googled how to download, build, and install the kernel version that I want and simply followed it downloaded the Kernel file from ...
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ping failed but ICMP Echo Reply received

I have a network topology like: On the host, I had done these scripts before hand: echo 1 > /proc/sys/net/ipv4/conf/veth1/accept_local echo 1 > /proc/sys/net/ipv4/conf/veth0/accept_local echo 0 ...
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what does 0 link means in bash file descriptor?

Each process uses a set of open files in linux . Now bash ( a shell ) is also a process which uses different file descriptor for standard input output. If I find some file descriptors : ls -l /proc/$$/...
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dmesg -T + how to expand dmesg info in order to verify history details

we have rhel 7.2 server from dmesg -T we see only the current date - Mon Jan 11 and not history dates as jan 10 , or less then jan 10 dmesg -T [Mon Jan 11 12:02:53 2021] Initializing cgroup subsys ...
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How do I disable driver signature enforcement across reboots in Windows 10?

I have tried setting the following in an elevated command prompt: bcdedit /set testsigning on bcdedit /set nointegritychecks on bcdedit /set loadoptions DISABLE_INTEGRITY_CHECKS Each command ...
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Too much RAM causing BSoD?

I’ve been building computers for a while now, and I was helping a buddy get his first system together. We got all the hardware in there and tried to boot it up and it blue screened a couple minutes ...
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MD RAID 6 Periodic Kernel Panic — Possible Kernel Bug?

Update 1/14/21 below. Original post: I recently upgraded my NAS server from an old i7-2600K to a Ryzen 3700X. Both systems use software MD RAID 6 on 7 4TB HDDs, running Ubuntu 20.04. The MD RAID was ...
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How to make an ISO file from bzImage and initramfs

I have a bzImage file and initramfs file. When I run qemu-system-x86_64 -kernel bzImage -initrd initramfs it works fine, but I need an ISO file. How can I make an ISO file from those?
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Error when compiling Linux kernel, please install syslinux/isolinux

I'm using Parrot OS to compile Linux kernel and I'm trying to make an ISO file, but when I run make -j8 isoimage I get this error: DESCEND objtool CALL scripts/atomic/check-atomics.sh CALL ...
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prevent kernel message which appears on terminal screen /dev/tty1

Kernel debug level message watchdog : BUG: soft lockup - CPU#0 stuck for 22s! appears in my console(/dev/tty1) and I am trying to prevent it. I tried following 3 methods but none of them worked: I ...
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How to change ovh custom kernel to stock centos7 kernel

I did try to search for an answer but was not able to find anything about changing the ovh custom kernel to stock kernel for CentOS7. I found how with ubuntu but not CentOS7. Any help would be much ...
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1answer
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What is the difference between Linux Kernel 5.3.0-1039-gke and 4.15.0-124-generic?

A few months ago I bought two used Dell Optiplex machines for use as a NAS and internet gateway, respectively. I installed Ubuntu 18.04 on both of them, and I noticed that even though the exact same ...
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Does ras-mc-ctl return overall error counts or just errors since start/reboot?

Do the values returned by ras-mc-ctl --error-count (CE = corrected errors, UE = uncorrectable errors) represent the overall errors stored inside the ECC-DIMMs? Or are these values only the ones ...
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Only `boot_aggregate` in IMA mesurements on Raspberry Pi

I am trying to use Integrity Measurement Architecture (IMA) on a Raspberry Pi 3B+. I compiled the kernel with following options (configured with menuconfig) CONFIG_IMA=y CONFIG_IMA_MEASURE_PCR_IDX=10 #...
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why there are missing rpms when installing the same rhel ISO on different machines

we have a very strange behavior after installing new machines with rhel 7.x ( FROM ISO INSTALLER ) we notice that rpm - libcgroup , isn't installed on the current new machines while before couple ...
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Linux properly identifies headset microphone, but Windows does not

On my Dell 3542, the official Realtel Windows driver offered by Dell has issues identifying the microphone of my headset connected through the 3.55mm combo audio port. This is a known issue for the ...
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kernel-default-devel for Arch

I'm trying to write kernel module on machine running Arch Linux. I wasn't able to locate and import 'generated/autoconf.h' (in previous version of kernels 'linux/autoconf.h' or 'linux/config.h'). I've ...
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AMD-Vi: [Firmware Bug]: : IOAPIC[5] not in IVRS table

Booting Debian bullseye 5.9.0-1-amd64 #1 SMP Debian 5.9.1-1 (2020-10-17) x86_64 GNU/Linux on my Lenovo Ideapad 320 (lastest available BIOS) I get those firmware bug complaining about missing IOAPIC ...
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How to patch this source code with git (under Ubuntu 16.04)?

The full description of the task is as follows: 1.Use git to download the linux kernel source code from kernel.org 2.Use git to patch the kernel source code that you downloaded 3.Compile(or build) the ...
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Manually edit .config for Linux Kernel

I'm trying to do some security research and I need to force set or manually set some options in the kernel's .config naturally it would be things like stack protectors, rwx and kernel aslr. I've been ...
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Bluetooth Peripherals Slow to Wake From Sleep on Linux

I have with me a Microsoft Designer Keyboard, Designer Mouse and Surface Arc Mouse. I use Fedora 33 (x86_64 Linux 5.8.18-300.fc33.x86_6), but the problem persists across distros. I suspect the above ...
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how can I get CentOS7.8 kernel source code after upgrading kernel to kernel-lt-4.4.242-1.el7.elrepo.x86_64 version from 3.10.0-1127.el7.x86_64

I am trying to get the Centos7.8 kernel source code with 4.4.242-1.el7.elrepo.x86_64 version. No matter the command is "yum install kernel-source kernel-devel" or "yum install -y kernel-...
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296 views

Pop OS Kernel Update Failed

I'm using Pop! OS Version 20.10. When i'm running any apt command always show error kernel not fully installed. This is the log : Reading package lists... Done Building dependency tree Reading ...
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Kernel Power Failure - Regular and Periodic pattern

My PC is freezing and then rebooting. Event viewer reports a kernel power (event ID: 41). It happens every 3 days in the evening. Given this periodic pattern, does this help diagnose the issue? I ...
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1answer
80 views

cant install any package on ubuntu Linux

root@osboxes:~# apt install gcc Reading package lists... Done Building dependency tree Reading state information... Done gcc is already the newest version (4:9.3.0-1ubuntu2). 0 upgraded, 0 ...
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Is the concept of LWP and scheduler activation not valid in case of one to one mapping of user thread and kernel threads

The book, Operating System Concepts by Galvin mentions that the LWP is a datastructure which is used to schedule User Level threads to Kernel Level, This concept of virtual processor makes sense in ...
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Windows 10 InRam Kernel reports negative value

I've been going over this question to diagnose a possible memory leak (the symptoms were the same). Then I went over the steps and got poolmon running... Lo and behold, I have -37000K InRam Krnl ...

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