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Intel NUC APL gets powered off when launching uos with gpu passthrough
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shibi590268@...
Hello,
The intel nuc apollo lake board NUC6CAYH gets powered off when launching the ubuntu uos script with gpu passthrough. I want to assign a display to the user vm which is ubuntu. This board has two display ports 1. VGA and 2. HDMI. User vm runs successfully when the gpu passthrough is removed. is it possible to assign a display to a pre-launched ubuntu-RT vm. ACRN version: 2.6 Kernel Version: 2.6 SOS: Ubuntu 18.04 |
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shibi590268@...
Could someone please help me get through this
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Can you share more details about your set-up? More specifically: - Hardware platform (inc. lspci output) - ACRN version - Launch script
Thanks, Geoffroy
From: acrn-users@... <acrn-users@...>
On Behalf Of shibi590268@...
Sent: Monday, January 10, 2022 2:30 pm To: acrn-users@... Subject: Re: [acrn-users] Intel NUC APL gets powered off when launching uos with gpu passthrough
Could someone please help me get through this |
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Hello Geoffroy, Please find the details Intel NUC apollo lake: NUC6CAYH ACRN Version 2.6 ACRN kernel: 2.6 Launch Script: Already attached |
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Could you be hitting something similar as this: https://github.com/projectacrn/acrn-hypervisor/issues/5811
Can you try to boot with with “uart=disabled” and see what happens? Add this to your /etc/grub.d/40_custom file: multiboot2 /boot/acrn/acrn.bin uart=disabled root=PARTUUID="PARTUUID"
Then run “sudo update-grub” and reboot.
Geoffroy
From: acrn-users@... <acrn-users@...>
On Behalf Of shibi590268@...
Sent: Thursday, January 27, 2022 6:13 am To: acrn-users@... Subject: Re: [acrn-users] Intel NUC APL gets powered off when launching uos with gpu passthrough
[Edited Message Follows]
Intel NUC apollo lake: NUC6CAYH |
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shibi590268@...
Thanks Geoffroy,
This fix worked for the first time. Display was assigned to the user vm. But if i shutdown the VM and start again, device gets hanged and becomes unresponsive. This happens even if i hard reboot the device. |
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Does that mean this system is completely unusable now?
Have you tried physically pulling the power cable from the device and waiting at least a few seconds before plugging it back in? I'm not sure how to go about resolving this one to be honest with you, Apollo Lake is not a platform that we focus on anymore, we are not testing it at all at this point. A few pointers still, based on inspection of the launch script you attached in the first email: - You can remove the " --pm_notify_channel ioc \" line, you don't have the ioc device on the NUC - I'm curious about this virtio-blk that is mapped to /mnt, what's the purpose of this? Thanks, Geoffroy |
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Geoffroy,
I have attached the service VM kernel debug messages when launching the user vm with GPU passthrough. There is a kernel panic occurring and then the device reboots. I hope this will help identify the root cause. Please check the logs and reply. |
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