This looks a likely culprit: https://bugzilla.kernel.org/show_bug.cgi?id=207489
-- Simon John
- 5.6 kernel crashes host when using VFIO on KVM ... Simon John
- Bug#961676: 5.6 kernel crashes host when u... Salvatore Bonaccorso
- Processed: Re: 5.6 kernel crashes host... Debian Bug Tracking System
- Bug#961676: 5.6 kernel crashes host wh... Simon John
- Bug#961676: 5.6 kernel crashes hos... Simon John
- Bug#961676: 5.6 kernel crashes... Simon John
- Bug#961676: 5.6 kernel cr... Simon John
- Bug#961676: 5.6 kerne... Simon John
- Bug#961676: 5.6 k... Salvatore Bonaccorso
- Bug#961676: 5.6 k... Simon John
- Bug#961676: 5.6 k... Simon John
- Bug#961676: 5.6 k... Simon John
- Bug#961676: 5.6 k... Simon John
- Bug#961676: 5.6 k... Simon John
- Bug#961676: 5.6 k... Simon John
- Bug#961676: marked as done (5.6 kernel... Debian Bug Tracking System
