No not. only use the Firefox and microsoft office on that machine.
It just happened again and here is the log from unraid:
Nov 24 13:55:58 unRAID kernel: gvt: guest page write error, gpa 852d4e00
Nov 24 13:55:58 unRAID kernel: gvt: guest page write error, gpa 852d4e10
Nov 24 13:55:58 unRAID kernel: gvt: guest page write error, gpa 852d4e20
Nov 24 13:55:58 unRAID kernel: gvt: guest page write error, gpa 852d4e30
Nov 24 13:55:58 unRAID kernel: gvt: guest page write error, gpa 852d4e40
Nov 24 13:55:58 unRAID kernel: gvt: guest page write error, gpa 852d4e50
Nov 24 13:55:58 unRAID kernel: gvt: guest page write error, gpa 852d4e60
Nov 24 13:55:58 unRAID kernel: gvt: guest page write error, gpa 852d4e70
Nov 24 13:55:58 unRAID kernel: gvt: guest page write error, gpa 852d4e80
Nov 24 13:55:58 unRAID kernel: gvt: guest page write error, gpa 852d4e90
Nov 24 13:55:58 unRAID kernel: gvt: guest page write error, gpa 852d4ea0
Nov 24 13:55:58 unRAID kernel: gvt: guest page write error, gpa 852d4eb0
Nov 24 13:55:58 unRAID kernel: gvt: guest page write error, gpa 852d4ec0
Nov 24 13:55:58 unRAID kernel: gvt: guest page write error, gpa 852d4ed0
Nov 24 13:55:58 unRAID kernel: gvt: guest page write error, gpa 852d4ee0
Nov 24 13:55:58 unRAID kernel: gvt: guest page write error, gpa 852d4ef0
Nov 24 13:55:58 unRAID kernel: gvt: guest page write error, gpa 852d4f00
Nov 24 13:55:58 unRAID kernel: gvt: guest page write error, gpa 852d4f10
Nov 24 13:55:58 unRAID kernel: gvt: guest page write error, gpa 852d4f20
Nov 24 13:55:58 unRAID kernel: gvt: guest page write error, gpa 852d4f30
Nov 24 13:55:58 unRAID kernel: gvt: guest page write error, gpa 852d4f40
Nov 24 13:55:58 unRAID kernel: gvt: guest page write error, gpa 852d4f50
Nov 24 13:55:58 unRAID kernel: gvt: guest page write error, gpa 852d4f60
Nov 24 13:55:58 unRAID kernel: gvt: guest page write error, gpa 852d4f70
Nov 24 13:55:58 unRAID kernel: gvt: guest page write error, gpa 852d4f80
Nov 24 13:55:58 unRAID kernel: gvt: guest page write error, gpa 852d4f90
Nov 24 13:55:58 unRAID kernel: gvt: guest page write error, gpa 852d4fa0
Nov 24 13:55:58 unRAID kernel: gvt: guest page write error, gpa 852d4fb0
Nov 24 13:55:58 unRAID kernel: gvt: guest page write error, gpa 852d4fc0
Nov 24 13:55:58 unRAID kernel: gvt: guest page write error, gpa 852d4fd0
Nov 24 13:55:58 unRAID kernel: gvt: guest page write error, gpa 852d4fe0
Nov 24 13:55:58 unRAID kernel: gvt: guest page write error, gpa 852d4ff0
Nov 24 13:56:03 unRAID kernel: gvt: vgpu 1: fail: shadow page 0000000000000000 guest entry 0xf0b82a75e5ff94f3 type 9
Nov 24 13:56:03 unRAID kernel: gvt: vgpu 1: fail: spt 00000000510a9478 guest entry 0xf0b82a75e5ff94f3 type 9
Nov 24 13:56:03 unRAID kernel: gvt: vgpu 1: fail: shadow page 00000000510a9478 guest entry 0xf0b82a75e5ff94f3 type 9.
Nov 24 13:56:03 unRAID kernel: gvt: vgpu 1: fail to flush post shadow
Nov 24 13:56:03 unRAID kernel: gvt: vgpu 1: fail to dispatch workload, skip