Comment 2 for bug 1991849

Test result on X-4.4 s390x is a bit different:
   FAIL: guest did not panic

Running '/home/ubuntu/autotest/client/tmp/ubuntu_kvm_unit_tests/src/kvm-unit-tests/tests/panic-loop-extint'
 BUILD_HEAD=6a7ccca1
 run_panic timeout -k 1s --foreground 5 /usr/bin/qemu-system-s390x -nodefaults -nographic -machine s390-ccw-virtio,accel=kvm -chardev stdio,id=con0 -device sclpconsole,chardev=con0 -kernel /tmp/tmp.MzNq2lYU8N -smp 1 # -initrd /tmp/tmp.D9iCVN6d7x
 FAIL: guest did not panic
 qemu-system-s390x: Unmanageable external interrupt! CPU0 new PSW: 0x0100000180000000:0000000000011100
 qemu-system-s390x: terminating on signal 15 from pid 12142
 FAIL panic-loop-extint