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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Linux not booting from usb drive on my server
I've got the problem with linux installation. I tried to install linux from usb on my server, but when I try to load installer or live boot, I got just nothing.
I tried different distros, but nothing ...
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Ubuntu Server 13.10: How to downgrade kernel
Ubuntu Server 13.10 appears to be very unstable, I got random crashes of the system with no apparent reason and nothing is showing in syslog.
This is screenshot from the console when the crash ...
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How to identify a driver causing every exited process to become a zombie, polluting page table and active unused memory?
I have a pretty new Windows 11 Pro installation, it has about a week. I noticed that my RAM usage is constantly going up. It was concerned because procexp readouts did not match the total used RAM ...
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Linux kernel ignores resumewait option, resulting in HORN configuration
I'm having trouble with my Linux (Debian GNU/Linux) system. Problem is that I currently have a HORN (Hibernate only, resume never) configuration: I can only hibernate but I cannot resume. Even worse ...
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UDP: bad checksum + from the dmesg
from the dmesg we see the following:
UDP: bad checksum. From 34.21.56.68:4343 to 32.3.42.22:4343 ulen 20
UDP: bad checksum. From 34.21.90.186:4343 to 32.3.42.22:4343 ulen 20
UDP: bad checksum. ...
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Would an executable need an OS kernel to run?
I know that when the source code, in say C++, is compiled, the output from the compiler is the machine code (executable) which I thought were instructions to the CPU directly. Recently I was reading ...
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High kernel CPU usage from CcUnpinRepinnedBcb
"System" regularly takes 100% CPU on one core of my PC, so a little over 6% total on average. This causes some extra heating and battery usage.
In trying to figure out why, I checked the ...
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How to generate soft lockup in Linux Kernel and how to verify?
I was testing soft lockup recovery procedure of Linux Kernel. I set /proc/sys/kernel/softlockup_panic to 1.
And I created a Kernel module as described in the link below. https://github.com/saiyamd/...
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SELinux issues when adding rules
On my laptop I use Fedora 17 distro for the first time and I'm having some issues adding rules to semodule
An example:
# grep httpd /var/log/audit/audit.log | audit2allow -M mypol
# semodule -i ...
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Windows 10 Kernel-Power 41 error after go to sleep
I have a recurring problem with my ASUS G56JR notebook under Windows 10, somehow the the system crashes after to go sleep. When I awake it, the eventlog shows the following:
I read a guys problem in ...
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kernel messages + DS CPU bug present and SMT on
what is the meaning of the following messages that we get from kernel messages
# dmesg | grep "MDS CPU bug"
[ 0.432893] MDS CPU bug present and SMT on, data leak possible. See https://...
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Boot a Linux Kernel on USB drive
I am trying to boot Linux kernel version 3.2.0 from USB drive.
I formatted the USB drive with ext4 partition. I installed GRUB on it, and I copied two files, vmlinuz-3.2.0-29-generic and initrd.img-3....
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USB Keyboard Interrupt Linux Kernel Module [duplicate]
I am trying to identify the interrupt used for the USB keyboard in Linux Debian. After pulling out my USB keyboad then plugging it back in dmesg shows me this:
[11614.703111] usb 3-5: new low-speed ...
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Guest additionals: Kernel headers not found for target kernel
I've been having a difficult time getting Guest Additions to install on my Oracle Linux 7. I have VirtualBox version 6.1.4.
I have guest additions version 6.0.4
The machine had 4.14.35-1902.7.3.1 ...
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Troubleshooting New PC Build: Successful Boot with Old SSD but Blue Screen on chkdsk and Intel Chipset Driver Installation Issue
I built a new computer and took SSD with Windows from old PC and put it into new PC (reason of doing this is I have tons of work-related apps that I would have to download & reinstall & ...
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Embed initramfs into existing kernel
Is it possible to embed an initramfs image into existing kernel without recompiling the whole thing? I don't have resources to do that.
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In Ubuntu, how to reduce the non-responsive pop-ups
Using Ubuntu from a USB stick, I get a lots of pop ups, mostly with Chrome, which say that the application is non-responsive. I just need to wait a little (click wait) and all is good; Chrome is ...
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How can I fix errors concerning ethernet and ttyUSB2?
I am using a beaglebone black which has Debian 11, kernel 5.10 .168-ti-r71. I also have a GSM Modem connected to it, SIM7000E. I am trying to do a PPP connection. Weeks ago when I tried it I had no ...
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ubuntu 23.10. Error updating the kernel
Prop. of my Ubuntu
PRETTY_NAME="Ubuntu 23.10"
uname -r
5.15.0-72-generic
Error updating the kernel to version 6.5
dkms/anbox-ashmem/1/build/make.log
DKMS make.log for anbox-ashmem-1 for ...
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Backing Up Kernel Modules from a GNU/Linux installation
How can I create a backup of all the driver modules (especially those that are not part of the original kernel yet) from an installation of GNU/Linux OS?
The original source of the proprietary ...
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Lenovo laptop (Thinkbook 16p Gen 2) restarts abruptly when using it. How to fix this?
I am experiencing since months a strange behaviour with my Lenovo laptop (Thinkbook 16p Gen 2 with NVIDIA graphic card GeForce RTX 3060): it abruptly restarts while I am using it (no blue screen, ...
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How can I update the kernel in WSL2 kernel to latest release?
The current kernel version in my WSL2 subsystem is:
5.10.60.1-microsoft-standard-WSL2
However, I see in the official Microsoft WSL GitHub repo there is a newer version of the kernel:
linux-msft-wsl-5....
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Raspberry Pi4 with only linux kernel [closed]
I'm making a robotics project where I have really limited power and heating problems. All I want to do is run a single C++ code on it.
I don't want a whole operating system just for that task. So I ...
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Grub not listing the new kernel while booting
I recently updated my kernel on CentOS 6.7. That also cleaned up all the older versions, which also updated my /boot/grub/grub.conf, it has a single entry (of the new kernel). Now, when I rebooted, ...
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Screen glitches / artifacts / flickering on all modern distros and kernels. I haven't been able to find solution for over half a year
Horizontal lines, glitches, black or white horizontal bars appear randomly on the screen. It's very, very random. Sometimes it's barely noticeable, sometimes it's like on two videos below.
The issue ...
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Kernel Panic with every Linux Distro on my MacBook
I recently bought a 2018 MacBook Pro for iOS development and I'm trying to install Mint/Ubuntu/Debian in a second partition I made before.
The problem is that I keep getting the same error every time ...
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How to check Intel iGPU frequency on Linux?
I own Intel Haswell G3420. At stock its iGPU has 1,15 GHz turbo frequency. In my UEFI I overclocked the iGPU to 1,5 GHz and added voltage. However the framerates in both benchmarks and games are the ...
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Create debian ISO with custom kernels and packages
I'm trying to create a custom Debian ISO with software that I have built and packaged to .deb. I have my system running on a virtual machine and have fully tested my packages. For the software to work ...
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Kernel processor power - Event ID 37
History:
Recently installed Window 7 Home OEM premium, with ubuntu as dual boot on DELL Latitude 3540.
In addition to problem1 in Windows7 & problem2 in ubuntu,
below is the new problem on my ...
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I am trying to emulate a board which has a OLED display, but can't see anything. Why?
I can't see anything in the OLED display (ssd0303).
I am just using this demo: https://www.freertos.org/portlm3s811keil.html
As you can see it says that:
The print task is the only task permitted to ...
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What user-mode and kernel mode driver does Windows using WDDM drivers load for DirectDraw HAL?
I started using Process Explorer to look at the DLLs referred by the programs.
Surprisingly, applications utilising only DirectDraw HAL don't seem to call any graphics related library/driver. It is ...
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CentOS Kernel panic - not syncing: Attempted to kill int during bootup
Building has a annual power shutdown for maintenance for 2 days.
As such, prior to it, I have shut down the CentOS 6 server.
After the power is back on (2 days later), when I boot back up, I ...
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Parameter sysctl fs.quota.syncs
I can't find a clear answer about the fs.quota.syncs parameter
What is it responsible for and is it a configuration parameter or a counter?
The value is different on different servers. After reboot - ...
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Fast kernel reboot with Windows 10 : how to execute a quick partial reboot with a powershell script?
In windows 10, instead of doing a full reboot, it's convenient to do a partial reboot by login out and login in again, for instance to reload a certain set of drivers and OS user related data.
I can ...
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MSI Laptop wakes up immediately after entering sleep mode
Some time ago I posted on Fedora Discussion because my Fedora system (MSI Summit e16 flip running Fedora 38) started having problems with sleep mode after a kernel update (actually, starting from ...
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Issues installing whonix on top of kicksecure
I do not know anything about linux however I have been working on this problem for about 20 hours.
I have a Lenovo thinkpad T430s i installed Debian 12, and I am quite certain I have installed ...
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Is the Windows kernel considered an "application"?
If it is true that all Windows files with the ".exe" file extension are considered "applications", is NTOSKRNL.exe, the Windows kernel, an "application", or is this an exception to the rule? What ...
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Fedora: Prevening kernel upgrades until kernel-headers is available
First, off, yes I do know that when the kernel is updated and the header files don't change the package doesn't need to be updated.
However, I use VMWare Worktation as a part of my daily workflow, and ...
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How to stop a unstoppable Kernel Driver windows 10?
I am looking to stop a kernel-level service. I would like to stop the service called BadlionAnticheat (not going to cheat in online games don't worry). When I sc query BadlionAnticheat, I get the ...
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RHEL + what could be the root cause for very high await
we have Kafka cluster servers ( 11 Kafka servers )
each server is RHEL 7.6 with 32 cores (physical DELL server)
Kafka server include the OS - dev253 disk and the Kafka disk - dev8
from sar -d we can ...
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If memory is not released after shutdown, does it mean it is kernel or driver memory leak?
I am trying to track down cause of a memory leak on Windows 10 PC. Something uses up memory, until system will start swapping to SDD, and when that runs out system will eventually crash. (Limit is 16 ...
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Realtek Ethernet not working after kernel update
After updating the CentOS 7.7 kernel from 3.10.0-957.27.2 to 3.10.0-1062.9.1, the Ethernet stopped working. The LEDs on the Ethernet port wouldn't light up and any attempt to ping anything resulted in ...
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can a faulty hard disk make my CPU IDLE so low
we have couple RHEL servers ( RHEL version 7.2 ) with very low CPU idle as the following.
our suspicion is about the disks as for example sdk and sdc and that because we saw from dmesg errors as [sdk] ...
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Should I disable the hardware IOMMU when booting with iommu=soft?
My system will refuse to boot when I have enabled the hardware IOMMU and a disc is inserted in the CD drive. The kernel will just loop error messages starting with AMD-Vi: Event logged [IO_PAGE_FAULT ...
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Using perf from a user account
I'm following admin-guide/perf-security.html from the kernel docs to set up perf with a user account. Briefly, I set up the capabilities on the binary and change group ownership to perf_users. However ...
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How to decrease VTIME value with termios api in Linux kernel
Related post closed with an open question. Why Windows is better than Linux for raw UART processing ?
https://stackoverflow.com/questions/76979323/how-to-reduce-tty-vtime-for-non-canonical-uart-on-...
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Understanding the Loading of Modules by initramfs in Linux: User Space or Kernel Space
I'm trying to gain a clearer understanding of the Linux boot process and the role of initramfs in loading kernel modules. Specifically, I'm interested in knowing whether the modules loaded by ...
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Receiving "E: Sub-process /usr/bin/dpkg returned an error code (1)" when performing the command: "sudo apt upgrade" on Kali Linux
When I run sudo apt upgrade or other related commands, I receive an error E: Sub-process /usr/bin/dpkg returned an error code (1). The full command being executed can be shown below:
sudo apt upgrade
...
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`IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready` message repeating every minute
I am using my Linux system for running some serverless functions using OpenFaaS.
I have placed the required invocation command in a shell script and I am constantly running the shell script using a ...
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Allow non-root process to bind to port 80 and 443?
Is it possible to tune a kernel parameter to allow a userland program to bind to port 80 and 443?
The reason I ask is I think its foolish to allow a privileged process to open a socket and listen. ...
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