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Questions tagged [linux-kernel]

The Linux kernel is the operating system kernel used by the Linux family of Unix-like operating systems. It is one of the most prominent examples of free and open source software.

The Linux kernel is the operating system kernel used by the Linux family of Unix-like operating systems. It is one of the most prominent examples of free and open source software.

The Linux kernel is released under the GNU General Public License version 2 (GPLv2) (plus some firmware images with various non-free licenses[citation needed]), and is developed by contributors worldwide. Day-to-day development discussions take place on the Linux kernel mailing list.

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patch lists for Redhat linux 5.9 -64 bit

Can any one update the lists of kernel patches released for Linux 5.9 Redhat and what is the current patch level. Thanks Mohan
skmohan
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How to enable CONFIG_PREEMPT option in Linux kernel?

I am a new bee in Linux kernel programming, trying to work with an old kernel Linux 2.6.32 on x86_64. I want to enable the CONFIG_PREEMPT option in it but can not find information about how can I do it. I can compile a new kernel with my preferred…
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Where is the Linux source kept in a Rackspace Gentoo VPS?

I'm emerging udev and it complains it couldn't find the kernel sources under /usr/src/linux (there's nothing inside /usr/src/ indeed). As a result, it tries to take the version from the currently running kernel and messes up thinking it's an older…
agentofuser
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Updating Centos 8.0 to Centos 8.3

I need your expert help on how can I update Centos 8.0 to Centos 8.3. I have installed Centos 8.0 using the standard option without GUI. It's a requirement at work. Please help Thanks & regards,
vinv27009
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modprobe: FATAL: Module nf_conntrack_ipv4 not found in directory

TASK [kubernetes/node : Modprobe nf_conntrack_ipv4] ************************************************************************************* fatal: [node1]: FAILED! => {"changed": false, "msg": "modprobe: FATAL: Module nf_conntrack_ipv4 not found in…
VRK-TECH
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Connectivity issues with 127.x.x.x series

Asked this in network-engineering in stack exchange and was redirected here. I have a couple of servers with the below config server1: eno1: 127.15.0.1/16 scope global eno2: 5.0.0.1/24 server2: lo: 127.0.0.1/16 (it had /8. I changed the subnet mask…
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How to gather in a save, cheap and easy way high quality entropy on a Linux machine?

When no radioactive decay is available and good entropy is strongly advised for security reasons you experience a real problem. HTTPS connections consume a lot of entropy. If you have thousands of them per hour between machines low on good entropy…
Andreas Karatassios-Peios
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fsck -n /dev/nandb giving errors . how to solve fsck errors

I want to know how to solve this error? help me out!! INPUT "fsck -n /dev/nandb" OUTPUT fsck from util-linux 2.25.2 e2fsck 1.42.12 (29-Aug-2014) Warning! /dev/nandb is mounted. /dev/nandb contains a file system with errors, check forced. Pass 1:…
niranjan pawar
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How do you run a script when a kernel oops occurs?

I would like to run a custom script when a kernel oops occurs. Is this possible, and if so how?
Mark Raymond
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For php webserver, what is faster, 1x 24-core server or 3x 8-core servers?

Pricing at Dell, it seems I can either get a single R430 or 3x R220's. The R220's would have 4C/8T processors, giving 24 threads. The R430 would have 2x 6C/12T processors giving again 24 threads. For an CentOS 6 apache web server doing mostly…
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Apply patch to custom kernel manually

I compiled a RHEL based kernel with a script. I've come to know that our version of kernel is vulnerable to attack and we need to apply security patches. https://rhn.redhat.com/errata/RHSA-2014-1392.html I wanted to know where can i find security…
PathFinder
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What are some options for acquiring a free realtime Linux distribution?

By realtime I mean something that can help with fast network I/O; Low-latency and high-throughput.
JohnPristine
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How to undo rm -rf?

How we can undo rm -rf command ? For example, I have Application folder. And I have remove it by rm -rf Application But it was my mistake and want to recovery or want that Application Folder. But its not in Trash folder. What should I do now ? Is…
Amrit Dhungana
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Which Flavour of Linux comes with default kernel 3.4?

I was using centos but came to know it has restrictions to upgrade kernel version so looking for any other flavour with default 3.4 kernel version please suggest
shiva
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What is the latest stable valid linux kernel for 3.8 version?

I want to know the latest stable kernel version of 3.8. Can any one help me out for this issue? I browsed for this issue but I didnt get the solution
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