Chromium with Widevine: kernel panic: condition vp->v_type == VDIR || VN_IS_DOOMED(vp) not met ⋯vfs_cache.c:3452 (vn_fullpath_dir)

[Graham Perrin]

Reproducible at <https://bitmovin.com/demos/drm>.

<https://codeberg.org/grahamperrin/freebsd-src/issues/10>