How to autoload a kernel module in Gentoo Linux?

I want to autoload some kernel modules when it's started. I've read the manual book, but can't help. Now the modules that I want to autoload are `vboxdrv` `vboxnetadp` `vboxpci` `vboxnetflt`, The modules directory is `/lib/modules/3.0.6-gentoo/`, the config file directory is `/etc/modules.autoload.d/kernel-3.0.6`, in this file, the modules are all included. And Now after i reboot it, use `lsmod`, I can't see these modules loaded. What's the the problem? ``` thinkpad walle # ls -l /boot/ 总用量 17068 lrwxrwxrwx 1 root root 1 1月 10 01:22 boot -> . drwxr-xr-x 2 root root 4096 4月 27 10:55 grub -rw-r--r-- 1 root root 5771120 3月 23 09:27 kernel-3.0.6 -rw-r--r-- 1 root root 5771120 4月 26 17:48 kernel-3.0.6-n5 -rw-r--r-- 1 root root 5876784 4月 27 10:55 kernel-3.0.6-n6 drwx------ 2 root root 16384 1月 17 15:47 lost+found ``` Now I use `kernel-3.0.6-n6` as my boot kernel. ``` thinkpad walle # cat /etc/modules.autoload.d/kernel-3.0.6 xt_mark test_nx scsi_wait_scan wlagn ext2 vboxdrv vboxnetadp vboxpci vboxnetflt ```