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.
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OCFS2 on Google Cloud Platform GCP/GCE - FATAL: Module ocfs2_dlmfs not found linux-modules-extra
I installed OCFS2 on my google cloud server, when I try bringing o2cb online, I get this error:
Loading filesystem "ocfs2_dlmfs": Unable to load filesystem "ocfs2_dlmfs" Failed
The ...
google-cloud-platform
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Cannot boot live USB after changing boot order via UEFI shell
I have an Acer travel mate running Arch Linux via EFISTUB. after last sy update I rebooted and got "No bootable device found" screen. To fix that I prepared a live arch USB and changed boot ...
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Issue: oracle linux UI goes black
I'm using the oracle linux verison
Linux localhost.localdomain 5.15.0-207.156.6.el9uek.x86_64 #2 SMP Thu Jun 6 02:32:40 PDT 2024 x86_64 x86_64 x86_64 GNU/Linux
I'm facing the issue, whenever I try to ...
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ip6gre tunnel ignores source device?
I'm trying to set up an ip6gre tunnel on Ubuntu with kernel 6.5.0-35-generic #35~22.04.1-Ubuntu and iproute2 5.15.0-1ubuntu2.
I ran into bugs with netplan and systemd-networkd (sigh) so I figured I'd ...
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What do these bntx console errors mean?
I have a server spilling out the following errors to the console
bnxt_en 0000:c8:00.1 bnxt_rel: Failed to add GID: Oxfffffff2
infiniband bnxt_rel: add roce_gid GID add failed port=1 index=2
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How to force Linux kernel to refresh disk modifications
I have a disk that was used by ceph, I used wipefs to clean it.
To make the system see that the disk is empty and can be used I have to reboot.
Is there a way to force the kernel to recognize those ...
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Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000 error on 5.15.0-1032-realtime
I am trying to isolate cores on an ARM64 Ampere (Supermicro) for real time workloads. When running workloads with RT prios I see the below error. I am not sure whats going wrong in this moment. I am ...
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Why a network interface still responding even when it is down?
It may sound a bit silly. I'm experimenting with my dn42 network setup, in which I assigned an IP address to a dummy interface of Machine A and connect to another node (Machine B) using a WireGuard ...
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Enabling gso udp in nginx results in bad length udp packets from tcpdump
I have compiled the latest version of Nginx with H3/QUIC support and everything is working fine.
However, after enabling quic_gso on, tcpdump is now flooded with "bad length" datagrams:
14:...
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OOM killing programs when used memory is at 30%
I am getting a bit crazy about this one: I am getting quite often processes killed by the kernel because of OOM. I see that free reports 14 GB used out of 14 GB, but when I add up the RSS of all the ...
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Is it possible to run Docker on a hypervisor type 1?
Is it possible to run Docker bare metal on a type 1 hypervisor such as VMware and Hyper-V?
Docker uses that same kernel as the host. So if the hypervisor is based on linux, does that work? Is there ...
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I/O errors during BLKDISCARD on Linux Dell R720 with SAS Seagate Nytro
I have a Dell R720 with PERC H310 Mini (LSI 2008 MegaRAID) controller which I have just loaded with 4 new Seagate Nytro XS1600LE70045 1.6TB SSD, configured as individual disks for Linux software raid. ...
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Is it safe to mount same btrfs subvolume multiple times at same time?
I know that it is safe to mount multiple volumes from the same btrfs volume at the same time. But what about the same subvolume? The subvolume would be mounted from the same Linux kernel instance. ...
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TCP_NODELAY for All current sockets in linux
i want lowest latency network with tcp_nodelay., in windows OS we can easily enable TCP_NODELAY through registry of windows. i searched on the red hat website and another website but up to now, my ...
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Remove old kernels with security implications / vulnerabilities
Some scanning tools (Qualsys, Sentinel, etc) detect installed old kernels and will report them as problems if those kernel versions have vulnerabilities. Is there a way to remove them if they have ...
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