AMDGPU reverting to hard lockup after KVM session

[Luke A. Guest]

Hi,

It looks like amdgpu has gone back to hard hanging the machine after
shutting down a kvm session with gpu passed through to the guest. There
are no dmesg or /var/log/messages


Guest GPU is a Sapphire Nitro R9 380, 4GB.


uname -a

Linux rogue 4.16.0-rc3 #1 SMP PREEMPT Tue Feb 27 14:54:58 GMT 2018
x86_64 AMD FX(tm)-8350 Eight-Core Processor AuthenticAMD GNU/Linux


Luke.