Dom0 update causing issues with sys-usb

User Support General
1

Is there a way to completely revert a dom0 update ? Not just the kernel but all the 60+ other packages ? Perhaps a snapshot revert ? Or dnf history undo (unclear if a dom0 update uses more than dnf for an update ?)

I did a dom0 update and during it, it started causing issues. Individual qubes would not start, giving the 60 sec qrexec timeout error and/or just hanging at initial memory. This makes me think it does not relate to the new kernel version but instead one of the packages

On a restart some of the impacted qubes now work but sys-usb will not start. It gives the 60 sec qrexec error. It does this after 5-10 seconds of starting, not 60 sec.

Qubes error says to check sys-usb logs but they dont seem different to logs on working install. I would think dom0 logs are needed since sys-usb doesnt start

This error appears 5 times in dmesg log (with different addresses)

xen_pt_config_reg_init offset 0x0010 mismatch !

But i checked and my other older working install has it too (with no issues)

1 Like
2

I installed 4.3 fresh on same computer with another ssd and it was working until i did dom0 update and got the same issue with sys-usb not starting

I tried dnf history undo the update transaction but got a lot of “no match for:” and a refusal to undo. I guess undo is not supported for qubes ?

This is an amd desktop, 9600x with integrated graphics

My thinkpad amd does not have this issue

3

On further looking at logs, I see a kernel panic.

I switched the advanced settings for sys-usb kernel to 6.12.59-1.fc41

The 6.18.xx options caused kernel panic, but only on the usb 2.0 device

1 Like
4

I’m using 6.19 (kernel-latest), and it works for me, maybe the issue was resolved.

2 Likes
5

Thank you. I installed kernel-latest and verified it was booting from it with

uname -r

But global settings latest kernel and advanced settings for sys-net still show older kernel with no option for 6.19.5-1. Is that correct or did i miss a step ?

Sys-usb crashes with the default latest

6

You need to also install kernel-latest-qubes-vm, kernel-latest is only the dom0 kernel.

1 Like
7

I am seeing a lot of problems after this latest dom0 update! I am not sure if this is normal or not - I typically only browse when I have a problem myself.

1 Like
8

Ahh, thanks. I did that and now i can see the kernel in dropdown. Unfortunately, it still crashes sys-usb with .19 :dizzy_face:

Thanks for the suggestion and explanation though. Since we have similar AM5 my only guess is my cheap motherboard (A620).

I might try again with a Usb pci card too

1 Like
9

It is fairly uncommon, the last time i needed to load an older kernel was due to nvidia issue about a year ago.

10

Last update.

Usb PCI card works no problem

The issue is just the USB 2.0 pci address. When i remove it from sys-usb devices, it starts. Didn’t cause an issue until this new kernel.