07-Aug-2026 14:15:55: attempting to use the base commit f5098b6bae761e346ebcd9da7f95622c04733cff provided by author 07-Aug-2026 14:15:56: continuing with f5098b6bae761e346ebcd9da7f95622c04733cff in axboe 07-Aug-2026 14:16:13: starting AI patch evaluation... 07-Aug-2026 14:17:36: AI verdict: WorthFuzzing=true (Reason: The patch fixes a vblank reference counting issue by introducing `drm_crtc_wait_one_vblank_internal` which avoids taking an extra vblank reference when one is already held. This is used in `drm_client_modeset_wait_for_vblank` and `drm_crtc_wait_one_vblank`. These functions are reachable via DRM ioctls and fbdev emulation (e.g., `FBIO_WAITFORVSYNC` via `drm_fb_helper_ioctl`). The changes are functionally significant and can be tested in virtualized environments using virtual DRM drivers like VKMS or virtio-gpu.)