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Questions tagged [linux-kernel]

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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.

601 questions
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235 views

Is it normal for Azure's Ubuntu Kernel (for example) to be so far behind when significant CVEs have been published? In particular, Copy fail (CVE-2026-31431) has not been patched on my Azure Ubuntu 22....
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1 answer
365 views

After some time, I decided to update my install server to the latest RHEL releases (8.10, 9.6, 10.0). There were no issues with releases 8.10 and 9.6, but with release 10.0 I encountered a problem. ...
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I am trying to setup some very specific rules with NF tables, but I am stuck at some point. There is obviously something I am missing. Here is the script I am using: #!/usr/sbin/nft -f flush ruleset ...
Score of 6
1 answer
576 views

I was trying to understand the sequence of events leading to a OOM kill in a container, which is eventually OOM invocation by memory controller of linux kernel. Assuming we are using cgroups V2, I ...
Score of 1
1 answer
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Upgrading an infrastructure based on Debian workloads, I can see my monitoring alerting when upgrade from Debian 10 to 11. Same hardware, same workload, same applications and services running I can ...
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2 answers
353 views

I am studying a performance (progress guarantee?) problem of an x86 hypervisor. The current hypothesis is there is a high amount of interrupts caused by concurrently running unrelated processes or ...
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2 answers
234 views

I have a vintage debian system, currently running bookworm. I notice there are many old kernels hanging around: mafro@locke:~ > dpkg -l "linux-image*" Desired=Unknown/Install/Remove/Purge/...
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We applied the monthly kernel disruptive patch but the server didn’t boot up after the patches. We rebooted manually from vcenter tool without any issue. My patch is completed on 12, Jul 00:26 . Could ...
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1 answer
403 views

I've encounterd an odd behavior I do not fully understand. Journald is supressing auditd messages being send out by rsyslog to a remote server for some reason on my centos 7-x64 VM: Thats the ...
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230 views

I'm observing unusual behavior with the fq_codel qdisc on my wireless interface in Ubuntu 18.04 (kernel version 4.15.0-20-generic). During a stress test with high upstream UDP load (~8 Gbps) on a ...
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So as the question says, I am in the process of migrating to new compute nodes. The new servers are HPE Proliant DL360 Gen 10 and the operating system installed is Ubuntu. These are the specifications ...
Score of 9
2 answers
718 views

Just for test, I created and mounted the same XFS file system on two hosts based on a shared device (pmem).Host A created a file in its mounted directory and executed the sync command to ensure that ...
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0 answers
399 views

I have two Proxmox hosts connected to one switch. Both Proxmox hosts have identical hardware, and are connected to the switch using LACP with two links in a bond. The WAN connection is connected to ...
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314 views

The system shows these messages in the terminal upon reaching the critical temperature (70c): acpitz: critical temperature reached, shutting down reboot: HARDWARE PROTECTION shutdown (Temperature too ...
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1 answer
118 views

I know how to set a pod's kernel parameters but I want to know Where the default network kernel parameters for pods come from. I tried to look up the answer online, but there is very little ...

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