Guest: DragonFly dfbsd 6.5-DEVELOPMENT #0: Thu Jul 2 06:02:54 UTC 2026 root@dfbsd:/usr/obj/usr/src/sys/X86_64_GENERIC x86_64
Host CPU: Intel(R) Xeon(R) CPU E3-1275 v5 @ 3.60GHz (Skylake), KVM available
Stock guest CPU (qemu64): CPUID leaf 6 EAX = 0 -> coretemp_identify gated (coretemp compiled in, inert; kldload says already loaded)
Guest with QEMU_EXTRA="-cpu host": hw.model=Intel Xeon E3-1275 v5, CPUID leaf 6 EAX = 0x4 <ARAT> (KVM strips the DTS bit) -> coretemp still gated
Thermal and PM Features=0x4<ARAT>  (sysctl -a | grep Thermal)
msrtest trigger: built with bsd.kmod.mk -Werror; kldload as root
  rdmsr_safe(MSR_THERM_STATUS=0x19c) -> error 14
  raw rdmsr(0x19c) -> Fatal trap 9 GPF in kernel mode, Stopped at msrtest_modevent+0x5d: rdmsr, guest down (DDB)
coretemp in kernel config: sys/config/X86_64_GENERIC:188 "device coretemp"
Fix build: same nativekernel run as DF-4733/4734 -> BUILD_RC=0, -Werror, coretemp.c compiled