uvm_page_owner_locked_p(pg) sys/uvm/uvm_page_status.c line 66
kern_assert()
uvm_pagegetdirt()
uvm_pagegetmarkdirty()
i915_gem_object_put_pages_gtt()
i915_gem_object_put_pages()
i915_gem_object_free_object()
drm_gem_object_release_handle()
linux_idr_for_each()
drm_gen_release()
drm_close_file()
drm_close()
closef()
fd_free()
exit1()
sigexit()
sendsig()
lwp_userret()
trap() syscall 6