Arch Linux

shiveringpeach

Member

From: Germany

Registered: 2019-03-17

Posts: 5

Problems with Vanilla / Zen kernel 6,2.1 with retbleed=stuff

I've encountered some problems with Vanilla and Zen kernel v6.2.1 together with the new retbleed=stuff kernel parameter. Both problems seem to occur for other users too.

Zen kernel:

The kernel won't boot. It hangs with the last messages being:

    [......] FAT-fs (sdb1): IO charset iso8859-1 not found.
    [FAILED] Failed to mount /efi.
    [DEPEND] Dependency failed for Local File Systems.

There is a delay of ~80s before the "FAT-fs (sdb1)..." message. Without the kernel parameter the system boots and runs perfectly fine.

Vanilla kernel:

This system boots and runs fine but won't wake up from suspend. A similar problem was reported in January

https://lkml.kernel.org/lkml/Y7qp80cK+r … zn.tnic/T/

but I don't know if this is related in any way.

System:

CPU: I5-6600
GPU: GTX 1070

loqs

Member

Registered: 2014-03-06

Posts: 17,327

Re: Problems with Vanilla / Zen kernel 6,2.1 with retbleed=stuff

Please post the full journal for a boot with the issue.  You can find a kernel with the fix for the issue you linked in https://bugs.archlinux.org/task/77601

shiveringpeach

Member

From: Germany

Registered: 2019-03-17

Posts: 5

Re: Problems with Vanilla / Zen kernel 6,2.1 with retbleed=stuff

> Please post the full journal for a boot with the issue.

See:

https://github.com/zen-kernel/zen-kernel/issues/300

loqs

Member

Registered: 2014-03-06

Posts: 17,327

Re: Problems with Vanilla / Zen kernel 6,2.1 with retbleed=stuff

Can you reproduce the issue if you blacklist the out of tree nvidia and virtualbox modules?
If you try linux-6.2.arch1-1.3 from the bug report I linked with the boot option lsm=landlock,lockdown,yama,integrity so the bpf lsm is not used can you reproduce the issue?

shiveringpeach

Member

From: Germany

Registered: 2019-03-17

Posts: 5

Re: Problems with Vanilla / Zen kernel 6,2.1 with retbleed=stuff

I do not have a general problem with the vanilla kernel. it boots fine. I just mentioned it because the Zen kernel locked up during boot and i wanted to try another kernel to see if it is a general problem. I than noticed that the vanilla kernel had a problem too - as mentioned by another user on Reddit (the issue with suspend) but it's not really a problem that bothers me since I use the Zen kernel.

If I'm honest, I'm not willing to give  this version of the vanilla kernel another try. It pseudo-bricked my system last time. That is, the PC wouldn't turn on after I had to forcefully turn it off. I had to physically remove the power chord. I don't no why that is. It sounds silly but that's what I experienced.

I'll live without this retbleed=stuff for now. It's only a single digit improvement anyway if I'm not mistaken.

Last edited by shiveringpeach (2023-03-02 07:09:42)