ubuntu_kvm_unit_tests fails on ioapic for xenial:linux-hwe

This was seen in two different cycles and instances:

SRU Cycle: 2023.01.30
Series: focal
Package: linux-azure
Version: 5.4.0-1104.110
Cloud: azure
Instance: Standard_D4_v4
Region: westeurope
Operation: sru

SRU Cycle: 2023.02.27
Series: xenial
Package: linux-hwe
Version: 4.15.0-207.218~16.04.1
Cloud: metal
Instance: rizzo
Region: kernel
Operation: sru

Logs:

Unhandled cpu exception 14 #PF at ip ffffffffffff0008
PF at 0xffffffffffff0008 addr 0xffffffffffff0008
error_code=0000 rflags=00010006 cs=00000008
rax=0000000000000014 rcx=00000000000003fd rdx=00000000000003f8 rbx=0000000000000010
rbp=000000000050f898 rsi=000000000050f074 rdi=000000000000000a
r8=000000000050f074 r9=00000000000003f8 r10=000000000000000d r11=0000000000000000
r12=0000000000000000 r13=0000000000000000 r14=0000000000000000 r15=0000000000000000
cr0=00000000e0000011 cr2=ffffffffffff0008 cr3=000000000040d000 cr4=0000000000000020
cr8=0000000000000000
STACK: @ffffffffffff0008 404b7f 2
FAIL ioapic