I am failing to build VirtualBox driver for Linux 2.6.38

Question

I am running Debian 6, and decided to install 2.6.38 kernel from Unstable. I also installed the headers so that I can later on :

sudo apt-get install --target-release=unstable linux-image-2.6.38-2-686-bigmem linux-headers-2.6.38-2-686-bigmem

I then re-installed virtualbox-ose-dkms to that the VirtualBox drivers for 2.6.38 can be rebuilt (so that I can use VirtualBox under 2.6.38), but I get this error:

Building initial module for 2.6.38-2-686-bigmem

Error! Bad return status for module build on kernel: 2.6.38-2-686-bigmem (i686)
Consult the make.log in the build directory
/var/lib/dkms/virtualbox-ose/3.2.10/build/ for more information.
dpkg: error processing virtualbox-ose-dkms (--configure):
 subprocess installed post-installation script returned error exit status 10
configured to not write apport reports
                                      Errors were encountered while processing:
 virtualbox-ose-dkms
E: Sub-process /usr/bin/dpkg returned an error code (1)

Here's the contents of the file they asked me to look at:

$ cat /var/lib/dkms/virtualbox-ose/3.2.10/build/make.log 
DKMS make.log for virtualbox-ose-3.2.10 for kernel 2.6.38-2-686-bigmem (i686)
Sat Apr  9 14:11:57 SAST 2011
make: Entering directory `/usr/src/linux-headers-2.6.38-2-686-bigmem'
  LD      /var/lib/dkms/virtualbox-ose/3.2.10/build/built-in.o
  LD      /var/lib/dkms/virtualbox-ose/3.2.10/build/vboxdrv/built-in.o
  CC [M]  /var/lib/dkms/virtualbox-ose/3.2.10/build/vboxdrv/linux/SUPDrv-linux.o
In file included from /var/lib/dkms/virtualbox-ose/3.2.10/build/include/VBox/types.h:30,
                 from /var/lib/dkms/virtualbox-ose/3.2.10/build/vboxdrv/linux/../SUPDrvInternal.h:35,
                 from /var/lib/dkms/virtualbox-ose/3.2.10/build/vboxdrv/linux/SUPDrv-linux.c:33:
/var/lib/dkms/virtualbox-ose/3.2.10/build/include/iprt/types.h:97:31: error: linux/autoconf.h: No such file or directory
/var/lib/dkms/virtualbox-ose/3.2.10/build/vboxdrv/linux/SUPDrv-linux.c: In function ‘VBoxDrvLinuxInit’:
/var/lib/dkms/virtualbox-ose/3.2.10/build/vboxdrv/linux/SUPDrv-linux.c:451: error: ‘nmi_watchdog’ undeclared (first use in this function)
/var/lib/dkms/virtualbox-ose/3.2.10/build/vboxdrv/linux/SUPDrv-linux.c:451: error: (Each undeclared identifier is reported only once
/var/lib/dkms/virtualbox-ose/3.2.10/build/vboxdrv/linux/SUPDrv-linux.c:451: error: for each function it appears in.)
/var/lib/dkms/virtualbox-ose/3.2.10/build/vboxdrv/linux/SUPDrv-linux.c:451: error: ‘NMI_IO_APIC’ undeclared (first use in this function)
/var/lib/dkms/virtualbox-ose/3.2.10/build/vboxdrv/linux/SUPDrv-linux.c:465: error: ‘nmi_active’ undeclared (first use in this function)
make[4]: *** [/var/lib/dkms/virtualbox-ose/3.2.10/build/vboxdrv/linux/SUPDrv-linux.o] Error 1
make[3]: *** [/var/lib/dkms/virtualbox-ose/3.2.10/build/vboxdrv] Error 2
make[2]: *** [_module_/var/lib/dkms/virtualbox-ose/3.2.10/build] Error 2
make[1]: *** [sub-make] Error 2
make: *** [all] Error 2
make: Leaving directory `/usr/src/linux-headers-2.6.38-2-686-bigmem'

Answer 1

autoconf.h moved from include/linux to include/generated in Linux 2.6.33. Authors of third-party modules must adapt their code; this has already been done upstream for VirtualBox. In the meantime, you can either patch the module source or create a symbolic link as a workaround.

As for the NMI-related errors, the NMI watchdog has changed a lot between 2.6.37 and 2.6.38. This looks like it requires a nontrivial porting effort on the module source code. In the meantime, you might have some luck just patching out the offending code. The purpose of the NMI watchdog is to debug kernel lockups, so it's something you can live without.

Answer 2

I had same issues with the kernel 2.6.38.2 and in order to make things done I did, as root:

aptitude purge virtualbox-ose virtualbox-ose-dkms
dpkg --list |grep "^rc" | awk '{print $2}' | xargs sudo dpkg --purge
locate -e virtualbox 

I removed all related files excerpt my ~/.VirtualBox

then

- aptitude install virtualbox-ose virtualbox-ose-dkms

since, I have a running Virtualbox-ose 4.0.2 with a kernel 2.6.38.2