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Nix Packages collection & NixOS
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20.03: Kernelmodule `rtl8192eu` causes kernel panics during boot when using 5.x kernel #95448

Closed NobbZ closed 4 years ago

NobbZ commented 4 years ago

Describe the bug When using any of the provided linux kernels that are 5.x, then there will be a Kernel panic on boot when the rtl8192eu module gets loaded. No WiFi possible once the system is booted.

When using one of the provided 4.x kernels, the system boots as expected.

To Reproduce

Have a WiFi card with an RTL-8192-EU chipset, and configure its usage like this:

boot.blacklistedKernelModules = [ "rtl8xxxu" ]; # Not sure if this really necessary, but at least on my system it was always loaded
boot.extraModulePackages = with config.boot.kernelPackages; [
  rtl8192eu
];

Expected behavior System boots without a Kernelpanic and WiFi works even with 5.x Kernels

Screenshots Not a screenshot, but full Kernelringbuffer of a boot I tried a couple of weeks ago and remembered to capture for a help thread in the discourse.

https://gitlab.com/snippets/1975107#LC1118 (Line on which the panic starts)

Metadata Please run nix-shell -p nix-info --run "nix-info -m" and paste the result.

Can't currently run this, as I the affected Laptop is physically dislocated, won't have access before monday.

xaverdh commented 4 years ago

looks like the version in nixpkgs is too old.. cc @troydm

mweinelt commented 4 years ago

I did a quick bump of the package to something more recent, can you give that a try?

NobbZ commented 4 years ago

Not before monday, but I'll give it a try then.

troydm commented 4 years ago

I did PR not long ago which I've checked personally and it's working fine, but it's still open: https://github.com/NixOS/nixpkgs/pull/82451 Haven't tried your PR @mweinelt but will try it out when I'll have some time

NobbZ commented 4 years ago

I am currently rebuilding my system based on @mweinelt PR. I think this will take quite a while. The laptop in question is just a ~10yr old dualcore with 4GiB of RAM and my regular buildHost is currently not available.

NobbZ commented 4 years ago

Okay. It seems as if @mweinelt PR works for me.

mweinelt commented 4 years ago

I did PR not long ago which I've checked personally and it's working fine, but it's still open: #82451 Haven't tried your PR @mweinelt but will try it out when I'll have some time

Sorry, I missed that.

Okay. It seems as if @mweinelt PR works for me.

Okay, so when @troydm is also happy we can merge #95497.

troydm commented 4 years ago

@mweinelt your PR seems okey, could you add bc as build input just as in my PR as it's used during build process, after that you can merge your PR and I'll close mine as it has older hashes