[ISSUE] Linux Kernal

[ISSUE] Linux Kernal

[ayoubkafi]

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New issue by ayoubkafi on void-packages repository

https://github.com/void-linux/void-packages/issues/27423

Description:
<!-- Don't request update of package. We have a script for that. https://alpha.de.repo.voidlinux.org/void-updates/void-updates.txt . However, a quality pull request may help. -->
### System

* xuname:  
  Void 5.9.16_1 x86_64 GenuineIntel uptodate rrFFF
* package:  
  linux-5.9_2

### Actual behavior
#### First
After booting Linux, this message appears
```
[    0.721523] DMAR: [Firmware Bug]: No firmware reserved region can cover this RMRR [0x00000000bdc00000-0x00000000bfffffff], contact BIOS vendor for fixes
```
and then the computer will continue

#### Second
Sometimes the system freezes for no reason. I can't move the mouse or switch between tty. The thing I can do is turn off the power from the computer
Once I checked out of the dwm window manager and was lucky enough to see this message before the system freezes
![error](https://user-images.githubusercontent.com/71545968/103137111-61033080-46c6-11eb-9bfa-5d2816882696.jpg)

Re: Linux Kernal

[Mek101]

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New comment by Mek101 on void-packages repository

https://github.com/void-linux/void-packages/issues/27423#issuecomment-752019104

Comment:
What's your motherboard? Could it be damaged?

Re: Linux Kernal

[leahneukirchen]

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New comment by leahneukirchen on void-packages repository

https://github.com/void-linux/void-packages/issues/27423#issuecomment-752715872

Comment:
Does kernel 5.4 work better?

May be related to https://bugzilla.kernel.org/show_bug.cgi?id=206313

Try disabling the IOMMU else (`intel_iommu=off`)

Re: Linux Kernal

[Anachron]

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New comment by Anachron on void-packages repository

https://github.com/void-linux/void-packages/issues/27423#issuecomment-754559695

Comment:
Also you might check if there is a firmware upgrade for your setup. 

Re: Linux Kernal

[ericonr]

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New comment by ericonr on void-packages repository

https://github.com/void-linux/void-packages/issues/27423#issuecomment-764812510

Comment:
@ayoubkafi ping?

Re: Linux Kernal

[ayoubkafi]

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New comment by ayoubkafi on void-packages repository

https://github.com/void-linux/void-packages/issues/27423#issuecomment-765250889

Comment:
> ?

What do you mean by ping

Re: Linux Kernal

[Anachron]

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New comment by Anachron on void-packages repository

https://github.com/void-linux/void-packages/issues/27423#issuecomment-765261221

Comment:
It means he asks you if you have any new progress here.

Re: Linux Kernal

[ayoubkafi]

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New comment by ayoubkafi on void-packages repository

https://github.com/void-linux/void-packages/issues/27423#issuecomment-769260734

Comment:
> @ayoubkafi ping?

No progress I reinstalled for the millionth time
Things are fine for a few minutes, up to an hour, and then suddenly the system freezes, I can't move the mouse, and if the audio clip is working it keeps repeating itself over and over again.
Any way to debug ?

Re: Linux Kernal

[ericonr]

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New comment by ericonr on void-packages repository

https://github.com/void-linux/void-packages/issues/27423#issuecomment-769305836

Comment:
How much memory do you have? You could be running out of it and using a lot of swap. Do you have swap enabled?

Try pressing `sysrq+alt+f` when this happens, it will try to kill the application using the most memory.

Re: Linux Kernal

[ayoubkafi]

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New comment by ayoubkafi on void-packages repository

https://github.com/void-linux/void-packages/issues/27423#issuecomment-769379187

Comment:
> How much memory do you have? You could be running out of it and using a lot of swap. Do you have swap enabled?
> 
> Try pressing `sysrq+alt+f` when this happens, it will try to kill the application using the most memory.

This is not related to memory
I have 4GB memory and 8GB swap, when I was using Void Linux it did not exceed 50%.
I have archlinux installed alongside voidlinux and i don't have any problem with archlinux

Re: Linux Kernal

[ericonr]

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New comment by ericonr on void-packages repository

https://github.com/void-linux/void-packages/issues/27423#issuecomment-769410356

Comment:
In that case I'd check what `htop` (or some similar program) shows about currently running processes... Does it lock up even if you don't launch a graphical session? You could try ssh'ing into it when it locks up and seeing if dmesg says anything.

Maybe some process is dying and not being properly reaped.

Re: Linux Kernal

[mvf]

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New comment by mvf on void-packages repository

https://github.com/void-linux/void-packages/issues/27423#issuecomment-769841241

Comment:
Booting with `intel_iommu=off` like Leah suggested will fix this since it disables the panicking code path. See the [GRUB section of the docs](https://docs.voidlinux.org/config/kernel.html#grub) on how to do this. To test it first without changing your system, you can select the kernel in GRUB, press <kbd>E</kbd>, append `intel_iommu=off` to the command line and press <kbd>F10</kbd> to boot.

There's still a Void bug here. `CONFIG_INTEL_IOMMU_DEFAULT_ON=y` is not suitable for a distro kernel.

Re: Linux Kernal

[ericonr]

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New comment by ericonr on void-packages repository

https://github.com/void-linux/void-packages/issues/27423#issuecomment-769851513

Comment:
This was brought up in #21767, and in IRC determined to be WONTFIX. I don't remember the exact issue.

Re: Linux Kernal

[ahesford]

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New comment by ahesford on void-packages repository

https://github.com/void-linux/void-packages/issues/27423#issuecomment-769854296

Comment:
Try `intel_iommu=igfx_off` instead. https://www.kernel.org/doc/html/latest/x86/intel-iommu.html#graphics-problems

Re: Linux Kernal

[ayoubkafi]

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New comment by ayoubkafi on void-packages repository

https://github.com/void-linux/void-packages/issues/27423#issuecomment-769942526

Comment:
I have installed intel-ucode, then I used the computer for a long time about 7 hours and the problem did not occur but I am not sure if it resolved or not

Re: Linux Kernal

[ayoubkafi]

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New comment by ayoubkafi on void-packages repository

https://github.com/void-linux/void-packages/issues/27423#issuecomment-769942526

Comment:
I have installed intel-ucode, then I used the computer for a long time about 7 hours and the problem did not occur but I am not sure if it resolved or not
Could this have anything to do with this message `[drm] *ERROR* Failed to wait for idle; VT'd may hang.`

Re: Linux Kernal

[ayoubkafi]

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New comment by ayoubkafi on void-packages repository

https://github.com/void-linux/void-packages/issues/27423#issuecomment-769942526

Comment:
I have installed intel-ucode, then I used the computer for a long time about 7 hours and the problem did not occur but I am not sure if it resolved or not
Could this have anything to do with this message `[drm] *ERROR* Failed to wait for idle; VT'd may hang.` or `DMAR: [Firmware Bug]: Your BIOS is broken; bad RMRR [0x00000000bdc00000-0x00000000bfffffff]` or `No firmware reserved region can cover this RMRR [0x0000000000000000-0x0000000000000fff], contact BIOS vendor for fixes` or `Your BIOS is broken; bad RMRR [0x0000000000000000-0x0000000000000fff]`

Re: Linux Kernal

[ayoubkafi]

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New comment by ayoubkafi on void-packages repository

https://github.com/void-linux/void-packages/issues/27423#issuecomment-769942526

Comment:
I have installed intel-ucode, then I used the computer for a long time about 7 hours and the problem did not occur but I am not sure if it resolved or not
Could this have anything to do with this message `[drm] *ERROR* Failed to wait for idle; VT'd may hang.`
or `DMAR: [Firmware Bug]: Your BIOS is broken; bad RMRR [0x00000000bdc00000-0x00000000bfffffff]`
or `No firmware reserved region can cover this RMRR [0x0000000000000000-0x0000000000000fff], contact BIOS vendor for fixes`
or `Your BIOS is broken; bad RMRR [0x0000000000000000-0x0000000000000fff]`

Re: Linux Kernal

[Anachron]

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New comment by Anachron on void-packages repository

https://github.com/void-linux/void-packages/issues/27423#issuecomment-769950685

Comment:
> Also you might check if there is a firmware upgrade for your setup.

Please revisit my suggestion from the 5th of January.

Re: Linux Kernal

[ayoubkafi]

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New comment by ayoubkafi on void-packages repository

https://github.com/void-linux/void-packages/issues/27423#issuecomment-769957008

Comment:
> > Also you might check if there is a firmware upgrade for your setup.
> 
> Please revisit my suggestion from the 5th of January.
I have previously said that I installed VoidLinux alongside ArchLinux and I don't have any problems with ArchLinux

Re: Linux Kernal

[ayoubkafi]

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New comment by ayoubkafi on void-packages repository

https://github.com/void-linux/void-packages/issues/27423#issuecomment-773280383

Comment:
The problem returned

Re: Linux Kernal

[Anachron]

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New comment by Anachron on void-packages repository

https://github.com/void-linux/void-packages/issues/27423#issuecomment-773290830

Comment:
You know it's not really helpful for anybody if you give us a short message that something still doesn't work. 
Tell us what you tried from the above suggestions and what changed. Also maybe post some kernel logs and alike.

Re: Linux Kernal

[travankor]

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New comment by travankor on void-packages repository

https://github.com/void-linux/void-packages/issues/27423#issuecomment-773293269

Comment:
I agree there's nothing actionable here and you haven't done any of the recommended suggestions yet.

Re: Linux Kernal

[Anachron]

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New comment by Anachron on void-packages repository

https://github.com/void-linux/void-packages/issues/27423#issuecomment-780472131

Comment:
Should we close this?

Re: Linux Kernal

[ahesford]

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New comment by ahesford on void-packages repository

https://github.com/void-linux/void-packages/issues/27423#issuecomment-780639146

Comment:
@ayoubkafi If you can find a way to reliably recreate this issue, rule out the suggestions in here and have high confidence that the issue is caused by a Void configuration or packaging issue, please feel free to open a follow-up issu with more documentation.

Re: [ISSUE] [CLOSED] Linux Kernal

[ahesford]

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Closed issue by ayoubkafi on void-packages repository

https://github.com/void-linux/void-packages/issues/27423

Description:
<!-- Don't request update of package. We have a script for that. https://alpha.de.repo.voidlinux.org/void-updates/void-updates.txt . However, a quality pull request may help. -->
### System

* xuname:  
  Void 5.9.16_1 x86_64 GenuineIntel uptodate rrFFF
* package:  
  linux-5.9_2

### Actual behavior
#### First
After booting Linux, this message appears
```
[    0.721523] DMAR: [Firmware Bug]: No firmware reserved region can cover this RMRR [0x00000000bdc00000-0x00000000bfffffff], contact BIOS vendor for fixes
```
and then the computer will continue

#### Second
Sometimes the system freezes for no reason. I can't move the mouse or switch between tty. The thing I can do is turn off the power from the computer
Once I checked out of the dwm window manager and was lucky enough to see this message before the system freezes
![error](https://user-images.githubusercontent.com/71545968/103137111-61033080-46c6-11eb-9bfa-5d2816882696.jpg)

Re: Linux Kernal

[ahesford]

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New comment by ahesford on void-packages repository

https://github.com/void-linux/void-packages/issues/27423#issuecomment-780639146

Comment:
@ayoubkafi If you can find a way to reliably recreate this issue, rule out the suggestions in here and have high confidence that the issue is caused by a Void configuration or packaging issue, please feel free to open a follow-up issue with more documentation.

Re: Linux Kernal

[ayoubkafi]

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New comment by ayoubkafi on void-packages repository

https://github.com/void-linux/void-packages/issues/27423#issuecomment-805777201

Comment:
i have replaced the old kernel argument with `rw loglevel=3 intel_iommu=igfx_off` then  the problem solved