Mailing List Archive: depmod: WARNING: /lib/modules/5.4.80-gentoo-r1/misc/vboxvideo.ko needs unknown symbol

I'm compiling VirtualBox support into the latest kernel-5.4.80-gentoo-r1

[*] Virtualization --->
<*> Kernel-based Virtual Machine (KVM) support
<*> KVM for AMD processors support

And I get an error when compiling the kernel: make && make modules_install

DEPMOD 5.4.80-gentoo-r1
depmod: WARNING: /lib/modules/5.4.80-gentoo-r1/misc/vboxvideo.ko needs unknown symbol ttm_bo_mmap
depmod: WARNING: /lib/modules/5.4.80-gentoo-r1/misc/vboxvideo.ko needs unknown symbol ttm_bo_manager_func
depmod: WARNING: /lib/modules/5.4.80-gentoo-r1/misc/vboxvideo.ko needs unknown symbol ttm_bo_device_release
depmod: WARNING: /lib/modules/5.4.80-gentoo-r1/misc/vboxvideo.ko needs unknown symbol ttm_bo_kunmap
depmod: WARNING: /lib/modules/5.4.80-gentoo-r1/misc/vboxvideo.ko needs unknown symbol ttm_bo_del_sub_from_lru
depmod: WARNING: /lib/modules/5.4.80-gentoo-r1/misc/vboxvideo.ko needs unknown symbol ttm_bo_device_init
depmod: WARNING: /lib/modules/5.4.80-gentoo-r1/misc/vboxvideo.ko needs unknown symbol ttm_bo_init_mm
depmod: WARNING: /lib/modules/5.4.80-gentoo-r1/misc/vboxvideo.ko needs unknown symbol ttm_bo_dma_acc_size
depmod: WARNING: /lib/modules/5.4.80-gentoo-r1/misc/vboxvideo.ko needs unknown symbol ttm_tt_init
depmod: WARNING: /lib/modules/5.4.80-gentoo-r1/misc/vboxvideo.ko needs unknown symbol ttm_bo_kmap
depmod: WARNING: /lib/modules/5.4.80-gentoo-r1/misc/vboxvideo.ko needs unknown symbol ttm_bo_add_to_lru
depmod: WARNING: /lib/modules/5.4.80-gentoo-r1/misc/vboxvideo.ko needs unknown symbol ttm_bo_init
depmod: WARNING: /lib/modules/5.4.80-gentoo-r1/misc/vboxvideo.ko needs unknown symbol ttm_bo_validate
depmod: WARNING: /lib/modules/5.4.80-gentoo-r1/misc/vboxvideo.ko needs unknown symbol ttm_bo_move_to_lru_tail
depmod: WARNING: /lib/modules/5.4.80-gentoo-r1/misc/vboxvideo.ko needs unknown symbol ttm_bo_put
depmod: WARNING: /lib/modules/5.4.80-gentoo-r1/misc/vboxvideo.ko needs unknown symbol ttm_tt_fini
depmod: WARNING: /lib/modules/5.4.80-gentoo-r1/misc/vboxvideo.ko needs unknown symbol ttm_bo_eviction_valuable

On 1/17/21 5:43 PM, thelma@sys-concept.com wrote:
> I'm compiling VirtualBox support into the latest kernel-5.4.80-gentoo-r1
>
> [*] Virtualization --->
> <*> Kernel-based Virtual Machine (KVM) support
> <*> KVM for AMD processors support
>
> And I get an error when compiling the kernel: make && make modules_install
>
> DEPMOD 5.4.80-gentoo-r1
> depmod: WARNING: /lib/modules/5.4.80-gentoo-r1/misc/vboxvideo.ko needs unknown symbol ttm_bo_mmap
> depmod: WARNING: /lib/modules/5.4.80-gentoo-r1/misc/vboxvideo.ko needs unknown symbol ttm_bo_manager_func
> depmod: WARNING: /lib/modules/5.4.80-gentoo-r1/misc/vboxvideo.ko needs unknown symbol ttm_bo_device_release
> depmod: WARNING: /lib/modules/5.4.80-gentoo-r1/misc/vboxvideo.ko needs unknown symbol ttm_bo_kunmap
> depmod: WARNING: /lib/modules/5.4.80-gentoo-r1/misc/vboxvideo.ko needs unknown symbol ttm_bo_del_sub_from_lru
> depmod: WARNING: /lib/modules/5.4.80-gentoo-r1/misc/vboxvideo.ko needs unknown symbol ttm_bo_device_init
> depmod: WARNING: /lib/modules/5.4.80-gentoo-r1/misc/vboxvideo.ko needs unknown symbol ttm_bo_init_mm
> depmod: WARNING: /lib/modules/5.4.80-gentoo-r1/misc/vboxvideo.ko needs unknown symbol ttm_bo_dma_acc_size
> depmod: WARNING: /lib/modules/5.4.80-gentoo-r1/misc/vboxvideo.ko needs unknown symbol ttm_tt_init
> depmod: WARNING: /lib/modules/5.4.80-gentoo-r1/misc/vboxvideo.ko needs unknown symbol ttm_bo_kmap
> depmod: WARNING: /lib/modules/5.4.80-gentoo-r1/misc/vboxvideo.ko needs unknown symbol ttm_bo_add_to_lru
> depmod: WARNING: /lib/modules/5.4.80-gentoo-r1/misc/vboxvideo.ko needs unknown symbol ttm_bo_init
> depmod: WARNING: /lib/modules/5.4.80-gentoo-r1/misc/vboxvideo.ko needs unknown symbol ttm_bo_validate
> depmod: WARNING: /lib/modules/5.4.80-gentoo-r1/misc/vboxvideo.ko needs unknown symbol ttm_bo_move_to_lru_tail
> depmod: WARNING: /lib/modules/5.4.80-gentoo-r1/misc/vboxvideo.ko needs unknown symbol ttm_bo_put
> depmod: WARNING: /lib/modules/5.4.80-gentoo-r1/misc/vboxvideo.ko needs unknown symbol ttm_tt_fini
> depmod: WARNING: /lib/modules/5.4.80-gentoo-r1/misc/vboxvideo.ko needs unknown symbol ttm_bo_eviction_valuable

In kernel-5.4.80-gentoo-r1
CONFIG_DRM_VBOXVIDEO is not set

need to be set for VirtualBox.
The strange part is that this setting is not enable in: kernel-5.4.72-gentoo x86_64
and VirtualBox is working and I never got any error messages like this when compiling kernel-5.4.72-gentoo