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 (QEMU/KVM)
Compiler: cc 8.3 [DragonFly] Release/2019-02-22
Guest /usr/src/sys/dev/drm/i915/i915_gem_stolen.c
  md5 = d0716e4f7697bbf94e47ae3d299be847 (== audit tree copy)
No Intel graphics hardware on this QEMU guest (no /dev/dri, i915 never
attaches), so the driver-attach path cannot execute on the guest; the
finding is verified at the verbatim-arithmetic level: the exact inline
helpers are transcribed from include/linux/pci.h:621-642 and every
transcribed kernel line is grep-verified against the guest's /usr/src
at build time (see build.sh SOURCE_LINES_VERIFIED in build.log).
resource_size_t == uint64_t on this platform (linux/types.h:35).
GEM_BUG_ON is a no-op in release builds (CONFIG_DRM_I915_DEBUG_GEM
undefined, i915_gem.h:38-61) -- the same build the guest runs.
Work dir: /root/df4679. No /usr/src changes (copies only). No panic.