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Rebooting GPU Passthrough VM takes entire unraid to freeze

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Is there a fix at this problem?

 

I have same issue on my side.

  • Replies 65
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Hi! no response att all. Still freezing after VM shutdown and nothing on the logs :-(


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  • 3 weeks later...

I have the same problem. It happens rebooting a macOS VM with a RX580 passed-through on the second PCIe slot.

I have done a test to lower qemu settings to 3.0 and have not see any issue yet, I will let the VM's be on for a week or so before I do a new shutdown or reboot. 

  • 2 weeks later...

With i44fx V3.0 is not working for me. Server crashes after shutdown.

 

@peter_sm Is your system working?

I think it is depending on the platform x79.

Friend of mine had also problems and has now switched to x99 and has no bugs.

Edited by Karatekid

With i44fx V3.0 is not working for me. Server crashes after shutdown.
 
@peter_sm Is your system working?
I think it is depending on the platform x79.
Friend of mine had also problems and has now switched to x99 and has no bugs.

So far so good , I’m now back on qemu 4.2 with the boot loader fix. And no issue at all.


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boot loader fix?

Solved the issue with adding the following to the boot parameters:

pcie_no_flr=1022:149c,1022:1487

 

 

source -- https://forum.level1techs.com/t/attention-flr-kernel-patch-fixes-usb-audio-passthrough-issues-on-agesa-1-0-0-4b/151877

//Peter

 

no success for me :/ I will now switch to X99 on the hope it will be better.

no success for me [emoji32] I will now switch to X99 on the hope it will be better.

Maybe we should try the kernel patch? Who can prepare that ?


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  • 2 weeks later...

changed to x99a and right now no problem at all.

  • 6 months later...
On 3/13/2020 at 6:48 AM, peter_sm said:

Solved the issue with adding the following to the boot parameters:

pcie_no_flr=1022:149c,1022:1487

 

 

source -- https://forum.level1techs.com/t/attention-flr-kernel-patch-fixes-usb-audio-passthrough-issues-on-agesa-1-0-0-4b/151877

//Peter

 

I'm fairly new to unRAID but I'm experiencing the same issue when shutting down/restarting VM. I've been reading the forum regarding this issue for the last 3 days and I've done all the necessary steps suggested to prevent this, but without luck.

Question for @peter_sm. Where exactly did you add those parameters. I know they should be in Syslinux configuration but don't know exactly which line. Should I put exactly the same parameters (1022:149c,1022:1487) or ..... <<confused>> Do they still work or you did some neww "modifications"?

 

@Karatekid would you mind explaining switching from X79 to X99?

7 hours ago, yogy said:

I'm fairly new to unRAID but I'm experiencing the same issue when shutting down/restarting VM. I've been reading the forum regarding this issue for the last 3 days and I've done all the necessary steps suggested to prevent this, but without luck.

Question for @peter_sm. Where exactly did you add those parameters. I know they should be in Syslinux configuration but don't know exactly which line. Should I put exactly the same parameters (1022:149c,1022:1487) or ..... <<confused>> Do they still work or you did some neww "modifications"?

 

@Karatekid would you mind explaining switching from X79 to X99?

Add the paremeters to the flash drive settings, under Syslinux Configuration. Same place where you add the graphics card IOMMU.

  • 1 month later...
On 9/27/2020 at 10:59 AM, yogy said:

 

@Karatekid would you mind explaining switching from X79 to X99?

Just changed the whole PC :D

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