Using the lp command triggers rcu_sched self-detected stall on CPU
When I use an old printer via the lp module, and after having loaded the module modprobe lp, if I output characters to the lp0 module, echo 1>lp0, my computer desktop gets stuck, (but connecting to...
View ArticleHow can I fix mt76x2u boot errors?
ProblemSoon after booting my Linux distribution (Arch) I'm getting some errors related to mt76x2u module:$ journalctl --boot --priority err-- Journal begins at Thu 2021-04-01 16:24:56 CEST, ends at Tue...
View Articleiwlwifi: Failed to start INIT ucode: -110 in Arch Linux kernel version 5.5.3
I'm new to Arch Linux. I installed it on my laptop(LG Gram)it seem fine post installation. I don't remember my wlan works post installation because I used wired. But, when I turned on my laptop today...
View ArticleLinux Kernel SKB with empty ARP bytes set to zero
I am registering a netdevice notifier in kernel using:netdev_rx_handler_register(dev, my_handler, data)Upon receiving network SKBs I check them, and if ethertype is set to ETH_P_ARP I print...
View ArticleAver M780 ngene firmware no longer creating /dev/dvb
After a sudden restart of my server by a power failure (that my battery backup didn't catch), my tv tuner cards are no longer working. The /dev/dvb is not being automatically created. Everything has...
View ArticleModprobe blacklisting using kernel command line
I have two boot configurations which more or less look like this:modprobe.blacklist=nouveaumodprobe.blacklist=nvidia,<and other nvidia modules>Which serve to dynamically use the open source or...
View ArticleCan you remove nvidia_modeset without removing the rest of the driver?
I'm trying to prevent nvidia driver from modesetting as an integrated GPU (i915) is doing it. I'm only using this nvidia card on linux for rendering (PRIME), no modesetting. I've tried blacklisting it...
View ArticleHow to find the kernel boot parameter for a given boot configuration option?
I have a Dell laptop running Debian Sid. Current kernel (4.15.4) is configured to load dell_smbios as module (CONFIG_DELL_SMBIOS=m). This produces the followning error while bootingdell_smbios: No...
View ArticleUpgrading NVIDIA L4T (Linux 4 Tegra) GPU modules from 3.10 to Something Newer...
I'm an owner of an ARM (armv7h) ChromeBook, in particular, it is the Acer ChromeBook 13 with an NVIDIA Tegra K1 GPU. I've recently have been successfully able to run Ubuntu 22.04 (Jammy Jellyfish) LTS...
View ArticleCustom Kernel requirements for BTRFS root volume
I'm trying to compile a custom kernel with BTRFS support under Ubuntu 18.04. When I compile and install 4.20.70-generic everything's fine and the system starts without any problem. Btw, I can't use...
View ArticleLinux header and extra modules on ubuntu container from an open suse micro os...
I have an Open SUSE micro OS host with kernel 6.5.9-1-default and an Ubuntu 22.04 distrobox container.I need to install the linux-headers-$(uname -r) and linux-modules-extra-$(uname -r) packages and...
View ArticleCapture when a packet is created inside a container with netfilter
I am trying to capture when a packet is created inside a container. I have containerd using the runc runtime to actually run and create the containers.I have a kernel module loaded in the host to...
View ArticleWiFi not working - wlan0 FAILED
My Arch (3.6.5-1) is exhibiting a rather peculiar problem: when wifi is set up, all logs indicate that the setup was successful and that the interface is up and functional. However, when attempting to...
View ArticleDifference between C-state and S-state?
I was going through the Linux power management files, and I am confused about the C and S states.The C-states are defined in /sys/devices/system/cpux/cpuidle/. From what I understand they are used to...
View Articlemodprobe fuse doesn't seem to load module
I'm trying to load the fuse kernel module but for some reason it seems like it's not getting loaded. But I also don't get any error message. Can someone explain to me what's going on?root@my-host:~#...
View ArticleIs there any benefit in disabling kvm module on bare metal that won't ever...
Somewhere along the line, the nested kvm kernel module became enabled by default. As hard as it may be to believe in this day and age, not everyone in the world had a need to run kvms on every host...
View ArticleDisable bridge module insert?
I have Fedora 20 setup with default kernel configuration, where bridge feature is enabled as a module (CONFIG_BRIDGE=m), and the bridge module loads as the system starts. I don't understand who...
View ArticleMaking cpupower changes persistent
I have been fiddling with power management and I can't find a way to make the changes I want persistent. For example, I have set the maximum cpu frequency with this command:sudo cpupower frequency-set...
View ArticleNo /sys/module/hid_apple directory
In my /etc/mkinitcpio.conf, I have added the hid_apple module, see the output of head /etc/mkinitcpio.conf below:# vim:set ft=sh# MODULES# The following modules are loaded before any boot hooks are#...
View Articleupdate-initramfs does not fully create initrd for new kernel
I seem to be having a bizarre problem installing a new custom kernel. update-initramfs fails during dpkg -i with:update-initramfs: Generating /boot/initrd.img-5.15.7-hardened1-test1find:...
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