[Solved] KVMFR module doesnt load correctly on boot

kvmfr module doesnt appear to be loaded correctly on boot contents of /etc/dracut.conf.d/kvmfr.conf

 install_items+=" /etc/modprobe.d/kvmfr.conf "

 install_items+=" /etc/modprobe.d/kvmfr.conf "

contents of /etc/modprobe.d/kvmfr.conf

options kvmfr static_size_mb=64

options kvmfr static_size_mb=64

ive been able to verify that the kvmfr module is loaded on boot, as lsmod reports

Module                  Size  Used by
kvmfr                  24576  6

Module                  Size  Used by
kvmfr                  24576  6

however /dev/kvmfr0 is not present on boot, when unloading the module and doing sudo modprobe kvmfr static_size_mb=64 its loaded and usable with looking glass.

34 Replies

rileyOP•6mo ago

@HikariKnight

HikariKnight•6mo ago

can you reboot and give me sudo dmesg | grep kvmfr should show

[    5.342899] kvmfr: creating 1 static devices
[    5.360076] kvmfr: kvmfr_module_init: module loaded

[    5.342899] kvmfr: creating 1 static devices
[    5.360076] kvmfr: kvmfr_module_init: module loaded

there is also a complaint about SELinux but the type enforcement we have fixes that as it loads later and systemd is trying to revert our settings for kvmfr

rileyOP•6mo ago

[    2.254877] kvmfr: creating 0 static devices
[    2.254904] kvmfr: kvmfr_module_init: module loaded

[    2.254877] kvmfr: creating 0 static devices
[    2.254904] kvmfr: kvmfr_module_init: module loaded

HikariKnight•6mo ago

hmm so the module should be loaded 🤔 ls -la /dev | grep kvm

rileyOP•6mo ago

interesting to note yours says creating 1 static devices mine says 0

HikariKnight•6mo ago

oh wait yeah hmm does your /etc/dracut.conf.d/kvmfr.conf start with that empty space or is that you accidentally adding it in the message?

rileyOP•6mo ago

thats how it starts apparently

HikariKnight•6mo ago

try remove the empty space at the beginning then do rpm-ostree initramfs --enable and wait for that to finish

rileyOP•6mo ago

enable what it gives me a no command specified

HikariKnight•6mo ago

sorry there

rileyOP•6mo ago

ah right its already enabled, do i just reboot

HikariKnight•6mo ago

because your dracut conf file is

 install_items+=" /etc/modprobe.d/kvmfr.conf "

 install_items+=" /etc/modprobe.d/kvmfr.conf "

but should be

install_items+=" /etc/modprobe.d/kvmfr.conf "

install_items+=" /etc/modprobe.d/kvmfr.conf "

if what you told me is correct

rileyOP•6mo ago

yes, ive removed the empty space now

HikariKnight•6mo ago

ok try reboot and check dmesg again

rileyOP•6mo ago

[    2.140729] kvmfr: creating 0 static devices
[    2.140763] kvmfr: kvmfr_module_init: module loaded

[    2.140729] kvmfr: creating 0 static devices
[    2.140763] kvmfr: kvmfr_module_init: module loaded

still says 0 still no /dev/kvmfr0 present

HikariKnight•6mo ago

that is so weird

rileyOP•6mo ago

ive basically followed what the ujust command did, but ran manually since the ujust commands seem to not run correctly

HikariKnight•6mo ago

hmm runs fine for me what error do you get with the ujust?

rileyOP•6mo ago

NOTE: You can start using kvmfr right now without rebooting, but you will need to regenerate initramfs for it to auto load next boot.
error: initramfs regeneration state is already enabled
error: Recipe `setup-virtualization` failed with exit code 1

NOTE: You can start using kvmfr right now without rebooting, but you will need to regenerate initramfs for it to auto load next boot.
error: initramfs regeneration state is already enabled
error: Recipe `setup-virtualization` failed with exit code 1

it errors after asking to regenerate initramfs but im not sure if its supposed to do anything after that

HikariKnight•6mo ago

oh thats fine, that just the rpm-ostree sending exit 1 because initramfs is already enabled and ujust reads that as an error with the script even if it is not try reboot without changing the modprobe conf see if it generates it then

rileyOP•6mo ago

will do

HikariKnight•6mo ago

essentially leave it at 128

rileyOP•6mo ago

Okay, doing that now

HikariKnight•6mo ago

that should just work since i just used it myself

rileyOP•6mo ago

I'll be damned it did

HikariKnight•6mo ago

most likely an invisible character then from when you ran it manually

rileyOP•6mo ago

I must've messed something up myself then Likely

HikariKnight•6mo ago

you can try change the size to 64 if you want, only reason we put it to 128 is because 4k will work with it and looking-glass wont crash if you use a dummy plug that supports it if a game goes like "oh you use 1080p but your display supports 4k, you want it in 4k right?!"

rileyOP•6mo ago

yeah i dont use a dummy plug, i just have the gpu plugged into the back of my monitor

HikariKnight•6mo ago

yeah so it will be a non issue for you i recommend changing the static size to whats best for your resolution then 🙂

rileyOP•6mo ago

i'll mark this as fixed now solved whatever you call it

HikariKnight•6mo ago

i marked it

rileyOP•6mo ago

ah im a stoop

HikariKnight•6mo ago

answeroverflow is great, it lets us index #bazzite-help to search engines

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[Solved] KVMFR module doesnt load correctly on boot