DF5082 harness loaded (sysctl df5082.trigger=N)
DF5082: victim hostb0 rid 0x10 (BAR reads 0 -> bus_alloc_resource_any will fail)
DF5082-fixed: bus_alloc_resource_any(rid 0x10) returned NULL; guarded, no panic
DF5082: fixed variant returned 0; guest still alive
DF5082: victim hostb0 rid 0x10 (BAR reads 0 -> bus_alloc_resource_any will fail)
DF5082-fixed: bus_alloc_resource_any(rid 0x10) returned NULL; guarded, no panic
DF5082: fixed variant returned 0; guest still alive
---
(dmesg output fetched over ssh after two `sysctl df5082.trigger=2` runs;
 the "0 -> 0" echo in run.log is a sysctl(8) display quirk -- the handler
 demonstrably received t==2, as it took the fixed branch both times)