Huge initrd

[Aioanei Rares]

I compile my own vanilla kernels for testing and I noticed that the 
initrd of those kernels is huge as you will see in a moment[1]. The 
.config is a copy of Fedora's with only two modifications (append 
version and CPU family). The method of compiling is a classic make 
oldconfig; make all; make modules_install; make install. Why is my 
initrd so big? Thanks.

[1]
ls -alh /boot | grep initr
-rw-r--r--  1 root root  11M 2010-03-17 14:18 
initramfs-2.6.31.5-127.fc12.x86_64.img
-rw-r--r--  1 root root  12M 2010-03-17 15:34 
initramfs-2.6.32.9-70.fc12.x86_64.img
-rw-r--r--  1 root root  94M 2010-03-17 19:36 
initramfs-2.6.34-rc1-00997-ga3d3203.img