DF-4928 / trigger.sh
#!/bin/sh # DF-4928 - live trigger on the DragonFly audit guest (run as root). # Demonstrates the corepower_probe() gating fall-through on a non-family-6 # "Intel" CPU (QEMU TCG reports Family=0xf, Model=0x6b): # - probe PASSES (only the rdmsr_safe(MSR_RAPL_POWER_UNIT) test gates it, # because the `if (cpu_family == 0x06)` model check is a skip-guard, # not a reject) # - attach runs and executes the raw rdmsr() at corepower.c:273 # - attach then returns ENXIO (sc_have_sens == 0) - benign here # No sensors attach; no #GP; kldunload clean; guest stays up. set -e echo "== CPU ==" grep -E "^CPU:|Origin" /var/run/dmesg.boot | head -3 sysctl hw.model hw.sensors.dev_idmax echo "== load ==" kldload corepower kldstat -v | grep -i corepower || true echo "== dmesg after load ==" dmesg | tail -6 echo "== sensors ==" sysctl hw.sensors | grep -v dev_idmax || echo "(no sensors - as expected)" echo "== unload ==" kldunload corepower echo "== alive ==" uptime echo "TRIGGER_DONE" |