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Re: Automotive Grade Linux over xen issues.

  • To: Arun K <arun.k@xxxxxxxxxxxxxxxxxxx>
  • From: Bertrand Marquis <Bertrand.Marquis@xxxxxxx>
  • Date: Mon, 18 May 2020 07:39:03 +0000
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  • Thread-topic: Automotive Grade Linux over xen issues.

Hi Arun,

> On 11 May 2020, at 05:55, Arun K <arun.k@xxxxxxxxxxxxxxxxxxx> wrote:
> Hi,
> Myself Arun working as a lead engineer at pathpartner technologies.
> Currently i am working on odroid xu4 with xen. I am trying to install 
> Automotive Grade Linux (AGL) on odroid xu4 as dom0.
> AGL has a kernel version of 4.19 and which is ported to the odroid xu4 and 
> booted successfully.But while trying to run it over xen it shows error "d0v0: 
> vGICD: unhandled word write 0xffffffff to ICACTIVER4". Then I tried lowering 
> the kernel versions to 3.10 which has xen odroid support but has some issues 
> with the AGL filesystem. tuning the AGL fs i am able to reach at login prompt 
> but failed to login successfully.

This is a warning that you can ignore.

> My xen version is 4.6. .

I would highly suggest to upgrade to a newer version of Xen.

> Can you please suggest a solution to overcome this issue.

The message is in fact a warning that some register accessed by Linux is not 
properly emulated by Xen.
In your version of Linux the register is not used by Linux out of boot phase so 
you can safely ignore the warning.


> --
> Thanks and Regards
> Arun K
> Lead Engineer
> Pathpartner
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