Comment 54 for bug 1580459

I've been experiencing something that sounds very similar to what has been described in this issue post and want to see if you guys think it's the same issue. For me from a cold boot everything is fine for a while and I can restart my vm and such just fine. but after a long time or stressful stuff mining/gaming if I shutdown my vm the host displays will all go to sleep and the system locks up which I had been assuming is a display driver crash. I can also sometimes trigger the exact same lockup by calling lspci. once such a lockup has happened I have to hard reset. where this gets even weirder is that after this happens I will get the same lockup during the startup process around when xorg loads. when this happens I either have to leave my computer alone for around 30 minutes to an hour, or I can get it to boot by disabling iommu with iommu=off as a kernel param, and then if I wait around 30 minutes to an hour I can restart and it will boot fine again with iommu=pt (I get a kernel panic if i don't use iommu=pt)

Hardware
Ryzen R5 1600
asrock ab350m pro4
32gb ram
Host gpu RX580
Guest gpu GTX1070