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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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Where to download the latest 2.4.x Linux kernel while kernel.org is down?

I need to run the pre-paleolithic (10 years old!) SuSE 7.3 under VirtualBox. (Don't ask. I just do, ok?) I managed to successfully install it. It boots. It recognized the virtual NIC (pcnet32 module) and I can see it has the correct virtual MAC…
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ArchLinux under Xen fails to see root fs after kernel upgrade to Linux-3.0

I bought a VPS but the hosting company doesn't have a prebuilt image for Arch Linux x64, so I have to install from ISO using VNC in SolusVM. The installation works fine, the box (Xen Guest) is bootable, but after an upgrade (pacman -Suy) kernel26…
nponeccop
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Log - Server kernel: INFO: task httpd:000000 blocked for more than 120 seconds

Almost everyday my server is crashing due to hight server load, and even restarting apache or mysql can't solve the problem. I need to reboot the server to solve, or it crash again due to the high load. The log system records something like this…
valter
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Linux Kernel Oops - source unknown

hopefully someone can help interpret what is going on here: [ 2081.280253] BUG: unable to handle kernel paging request at ffff8801ad287000 [ 2081.280262] IP: [] __sanitize_i387_state+0x29/0x120 [ 2081.280272] PGD 1e30067 PUD…
Paul
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How to detect memory leak in the linux kernel 2.6.29

Is there a way to find out if Linux kernel is leaking memory by running some commands? I am almost positive that the linux kernel is leaking memory. However, the top and free -k do not reveal much. Is there a way that I can look at how much memory…
doon
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How to block everything with IPTABLES?

I would like to block everything EXCEPT SSH/FTP/HTTP/POSTFIX and MySQL. With "everything" I mean all the other ports, block pings etc etc.
Dail
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Is upgrading your kernel analogous to patching in Windows?

Coming from mostly a Windows background, it seems to me that updating your kernel in Linux is essentially the same idea as patching the OS in Windows. Is this the case? What are the commonalities and differences?
jefflunt
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linux kernel buffer memory is zero

There are one qestion that i can`t find in google. I have many linux boxes mostly with SLES or openSUSE, diffrent versions and kernels. On some of them i faced with slow oracle transactions problem. It time to time problem and when i log in the box…
flashvoid
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exploit.so dmesg errors

A server (which has since been pulled offline and is scheduled to be wiped) was compromised through ssh brute force. No root/su/sudo access was gained but I started observing these errors (pasted below). I am curious if anyone has ever seen them,…
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rp_filter kernel setting precedence

When rp_filter kernel setting is configured with different boolean, which takes precedence? all.rp_filter or interface.rp_filter? net.ipv4.conf.all.rp_filter = 1 net.ipv4.conf.default.rp_filter = 1 net.ipv4.conf.eth0.rp_filter = 0
user5016380
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failed to create fsnotify watcher: too many open files

I received this error while trying to tail the log of a Kubernetes pod. failed to create fsnotify watcher: too many open files
Steven
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debian update fails on buildine "new" kernel

my current version $ cat /etc/*elease* PRETTY_NAME="Debian GNU/Linux 12 (bookworm)" NAME="Debian GNU/Linux" VERSION_ID="12" VERSION="12…
francois P
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Cannot downgrade linux-image-amd64

Some time ago, I wanted to try the 5.10.127-2~bpo10+1 kernel on Debian 10 Buster system. However, that kernel was not maintained nor patched by Debian any longer. Now, new 4.19.x kernels no longer upgrade automatically, as the linux-image-amd64…
mt42
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Kernel reboot without log during starting the crash kernel

I am testing crash kernel image feature with arm64 device, kernel version is linux-5.4, now i am trigger kernel crash via "echo c > /proc/sysrq-trigger", then kernel would trigger null-pointer crash and save context, then start the second…
Andy2
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Routing issue on Debian 11 VM

I updated my OPnsense "router/gateway" to 23.1 a few days ago, and now I am experiencing an issue with one of my machines. I have one machine with OPnsense installed that acts as a basic NAT router for my private subnet 192.168.50.0/24. This…
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