All config files need .conf: /etc/modprobe.d/kqemu, it will be ignored in a future release

It seems to be impossible to run kvm-based virtualization program and VirtualBox at the same time. There is some kind of a conflict between both programs. To make sure that a VirtualBox-based virtual machine is launched successfully, I have found a workaround. I temporarily removed all kvm modules :

root@localhost:~# lsmod |grep kvm

kvm_intel              32832  0
kvm                   182683  1 kvm_intel

root@localhost:~#modprobe -r kvm_intel
WARNING: All config files need .conf: /etc/modprobe.d/kqemu, it will be ignored in a future release.

Which package does  /etc/modprobe.d/kqemu file belong to ?

root@localhost:~#dpkg -S /etc/modprobe.d/kqemu
kqemu-common: /etc/modprobe.d/kqemu

All the files in /etc/modprobe.d/ ends with .conf except kqemu. Looking at the BTS Debian, here what I found :

http://packages.debian.org/lenny/kqemu-common

This package, kqemu-common, remained on my system after upgrading from Lenny to Squeeze. To avoid any error message as indicated below, you can either rename the file as follows :

root@localhost:~# mv /etc/modprobe.d/kqemu /etc/modprobe.d/kqemu.conf

or you can remove the package safely. The modules kvm and kvm_intel remain loaded and the file /etc/modprobe.d/kqemu.conf freshly renamed is still there.

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