bug#36757: AMD-Vi IOMMU bug, kernel crashes using GuixSD 1.0.1"

bug#36757: AMD-Vi IOMMU bug, kernel crashes using GuixSD 1.0.1"

[romulasry]

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https://ibb.co/kyBrwRc

Image uploaded to site because of:

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bug#36757: AMD-Vi IOMMU bug, kernel crashes using GuixSD 1.0.1"

[Ludovic Courtès]

Hello romulasry,

romulasry <romulasry@protonmail.com> skribis:

> https://ibb.co/kyBrwRc

I don’t actually see a crash on this picture, just repeated messages
like:

  AMD-Vi: Event logged [IO_PAGE_FAULT …]

Did the system actually crash or hang?

I suppose it would be worth reporting the issue to the kernel developers
because that doesn’t seem to be Guix-specific.

Thanks,
Ludo’.

bug#36757: AMD-Vi IOMMU bug, kernel crashes using GuixSD 1.0.1"

[romulasry]

I get the same hang when I turn off amd virtualization.

It must be the bottom error that is causing it. I assume because i get the same error then hang when it is the IOMMU setting is set to off in the UEFI.
Sent with ProtonMail Secure Email.

‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐
On Thursday, July 25, 2019 10:14 AM, Ludovic Courtès <ludo@gnu.org> wrote:

> Hello romulasry,
>
> romulasry romulasry@protonmail.com skribis:
>
> > https://ibb.co/kyBrwRc
>
> I don’t actually see a crash on this picture, just repeated messages
> like:
>
> AMD-Vi: Event logged [IO_PAGE_FAULT …]
>
> Did the system actually crash or hang?
>
> I suppose it would be worth reporting the issue to the kernel developers
> because that doesn’t seem to be Guix-specific.
>
> Thanks,
> Ludo’.

bug#36757: AMD-Vi IOMMU bug, kernel crashes using GuixSD 1.0.1

[romulasry]

It is a amdgpu firmware bug, will guixsd ever support it?

bug#36757: AMD-Vi IOMMU bug, kernel crashes using GuixSD 1.0.1

[Tobias Geerinckx-Rice via Bug reports for GNU Guix]

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Romulasry,

romulasry@protonmail.com, via web 写道：
> It is a amdgpu firmware bug,

We've had some trouble booting with the non-free AMDGPU graphics 
cards before, but the ‘AMD-Vi IOMMU’ part is new to me.  What 
exactly happens?  Which error messages (if any) do you get 
(pictures are fine, but please compress them to a few 100k or host 
them elsewhere)?

> will guixsd ever support it?

We can certainly try, if we know what (kernel CONFIG_ option, 
kernel command-line option, …) is required.

Since you seem to know more about the bug, could you explain it in 
more detail of provide a link to more information?

Thanks,

T G-R

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