I'm having some problems with an Antergos 4.18 installation on my Acer Swift 3 (SF315-41) the main one is regarding virtualization.

At first when I booted up the OS I would get this messages:

[Firmware Bug]: AMD-Vi: IOAPIC[4] not in IVRS table
[Firmware Bug]: AMD-Vi: IOAPIC[5] not in IVRS table

And the computer would get frozen between 1 to 3 times a day seemingly at random intervals if I was running a VM.

After digging around I found this SU answer which helped me get past those errors by following the instructions under the title "2. Linux workaround"

I thought the freeze problems were gone after that but yesterday it happened again, I took a look at the output of dmesg and sure enough there is a remaining error regarding AMD-Vi:

AMD-Vi: Unable to write to IOMMU perf counter.

dmesg dumps:

inxi -Fxz output

  • Do you fix this problem? I have the same problem. – l0o0 Jun 29 at 15:43
  • @l0o0 I gave up on running Linux on it, here's a thread I've opened in a forum about the issue forum.level1techs.com/t/… if you find a solution let me know. – Ferares Jun 30 at 23:34
  • From this post, I added iommu=soft to /etc/default/grub.cfg, updating grub config. By now, AMD-Vi: Unable to write to IOMMU perf counter error message is gone and the computer does not get stuck. – l0o0 Jul 3 at 2:15
  • @l0o0 that's great, did you read my post on level1techs? on it I discover that my issue seems to have more to do with memory than VMs, are you able to run the command I specify on this post forum.level1techs.com/t/… for like 30 minutes without any problems? – Ferares Jul 5 at 18:57

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