e1000e & Intel Gigabit Ethernet I217-V issues
Metacomment:Not sure where to post this. Stackoverflow sent me to askubuntu, they told me it's off-topic there. Trying here again, please show some courtesy and point me in the right direction if I'm...
View ArticleWhich rtl8821ae driver Linux Mint uses and how to apply it to any other distro?
I have a rtl8821ae-based 5GHz WiFi card on my desktop PC (It is pci-e TP-Link Archer T4E)I would like to install and use Linux to this desktop. I try different popular distros (Ubuntu, Fedora, Manjaro...
View ArticleWSL 2 does not have /lib/modules/
I have the source code of a hello world kernel module that works in Ubuntu 20 in a laptop.Now I am trying to compile the same code in Ubuntu 20 but inside WSL2. For that I am using this:make -C...
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 ArticleRemove kernel module in use
I would like to remove some kernel module (bluetooth) without rebooting my device.When I'm trying to remove it, a fatal error appears.# modprobe -rf btbcmmodprobe: FATAL: Module btbcm is in use.I know...
View Articleinstall USB 3.0 express card under linux (Arch Linux) (tried adding kernel...
I'm trying to install a CSL USB 3.0 express card to my Arch Linux system.However, when I do this, I get the following error message:xhci_hcd 0000:05:00.0: xHCI host controller not responding, assume...
View Articlesysfs: Correspondence between modules and drivers?
In sysfs, one can find which driver is handling a device. For example, the following shows that the driver handling the device led0 is called...
View Articlesysctl: setting key "net.ipv4.ip_forward": Invalid argument
This is a vanilla install. I just did a yum update to Centos 7.3 and install KvM and rebooted. When following a guide and setting up IP Forwarding like I always have done I get the following:sysctl:...
View ArticleProblem with wlan card driver in all newer distros of linux
I have great problem with wlan card in all newer versions of linux.Machine is laptop Amilo 2727Wlan card is qualcomm atheros ar242x/AR542X (ath5k drivers).In older linux distros (Ubunutu 10.4,...
View ArticleWhat might be causing a kernel module to get corrupted?
I am sporadically getting a weird effect with my kernel module that I cannot quite place (this is on a Raspberry Pi4 using Raspberry OS, I am using an SSD - no SD card; 3A power supply).I have built a...
View ArticleAutomatic module signing for distribution in Linux
I'm new to writing Linux modules (drivers) and digital signatures, so please correct me if any of my understanding is incorrect.When I run make modules_install on my module, I get the following error...
View ArticleHow to use(or find or modprobe) .ko in cat modules.builtin
I tried to built-in(or modules) in new kernel(used arm-none-linux-gnueabi- and got a new baby zImage & Image),then i flashed new kernel to ARM Board. But nothing did happen. The wierd thing is that...
View ArticleAm I making invalid assumptions with regard to my kernel module's shared memory?
I have written a "device driver" (see source code here: https://bitbucket.org/wothke/websid/src/master/raspi/websid_module/ ) that runs fine for most of the time (see...
View ArticleNo Audio Dell XPS 9700 Kernel 5.12
I am using a laptop Dell XPS 17. After update my Linux kernel to 5.12.0-051200rc7-generic the only available audio output device is Dummy-output. So basically Linux stops recognizing my audio card....
View ArticleHave to run insmod for rtl8812au after each boot
I use the rtl8812au driver for my wifi adapter. I have dkms setup so that after each kernel upgrade, it gets compiled. Here are the commands I ran to set that...
View Articlehow to sign my own kernel module in linux?
I write a simple hello world kernel module in Linux and I tried to load it to the kernel. but it was not possible because I get this error while I want to load it.module verification failed: signature...
View ArticleUnable to register kprobe
I'm trying to register a kprobe to retrieve the address of a syscall. But all my attempts seem to return -22 as the error code. The sample code below (incomplete but contains the related functions)...
View ArticleBUG:BUG: unable to handle kernel NULL pointer dereference at...
I am trying to reproduce a microarchitectural attack on SGX enclave described here. while doing so in one of the ioctl command (CACHEZOOM_IOCTL_TEST) I get the BUG: ble to handle kernel NULL pointer...
View ArticlePCI passthrough: vfio-pci ignores ids of devices
I have 3 GPUs in my dual XEON server.I followed instructions on Arch wiki and set up vfio-pci with ids=10de:100c,10de:0e1a:$ modprobe -c | grep vfiooptions vfio_iommu_type1...
View ArticleNot seeing control channel and data interface associated with qmi_wwan evwn...
I am trying to set up a QMI data and control channel on my Linux host, but been having trouble understanding a few things.When I run lsmod, I see the following$lsmodModule Size Used byoption 53248...
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