[ovs-dev] Bug#659685: Bug#659685: fails to build the kernel module

[Simon Horman]

On Mon, Feb 13, 2012 at 04:10:06PM +0800, Thomas Goirand wrote:
> Package: openvswitch-datapath-dkms
> Version: 1.4.0-1
> Severity: grave
> 
> Hi there!
> 
> First, thanks for maintaining OVS, this is a very nice software, which
> I will use with XCP (for which I'm working on the packaging, together
> with people from Citrix).
> 
> Now, the less nice stuff... :)
> 
> openvswitch-datapath-dkms fails to build its kernel module when I tried
> to install it in SID. Here's the relevant log:
> 
> Building module:
> cleaning build area....(bad exit status: 2)
> ./configure --with-linux=/usr/src/linux-headers-3.1.0-1-686-pae ; make -C datapath/linux......(bad exit status: 2)
> Error! Bad return status for module build on kernel: 3.1.0-1-686-pae (i686)
> Consult /var/lib/dkms/openvswitch/1.4.0/build/make.log for more information.
> 
> and the make.log contains:
> 
> make: Entering directory `/var/lib/dkms/openvswitch/1.4.0/build/datapath/linux'
> make: *** No targets specified and no makefile found.  Stop.
> make: Leaving directory `/var/lib/dkms/openvswitch/1.4.0/build/datapath/linux'
> 
> I believe that the step building the Makefile was never run (but I didn't
> investigate more and used the module-assistant version). Indeed:

Strange, I think that the Makefile should be created by ./configure,
which features in the debian/dkms.conf.in.

Would it be possible for you to provide your make.log?

> root@<hostname>:~# ls /var/lib/dkms/openvswitch/1.4.0/build/datapath/linux
> compat  Kbuild.in  Makefile.in  Makefile.main.in  Modules.mk
> 
> If I add in debian/dkms.conf.in something like this:
> -MAKE="./configure --with-linux=/usr/src/linux-headers-`uname -r` ; make -C datapath/linux"
> +MAKE="./configure --with-linux=/usr/src/linux-headers-`uname -r` ; cp datapath/linux/Makefile.in datapath/linux/Makefile ; cp datapath/linux/Makefile.main.in datapath/linux/Makefile.main ; make -C datapath/linux"
> 
> then I have further errors:
> 
> checking for Linux source directory... configure: error: cannot find source directory (please use --with-linux-source)
> make: Entering directory `/var/lib/dkms/openvswitch/1.4.0/build/datapath/linux'
> Makefile.main:8: @abs_srcdir@/../Modules.mk: No such file or directory
> Makefile.main:9: @abs_srcdir@/Modules.mk: No such file or directory
> Makefile.main:55: *** Linux kernel source not configured - missing
> version.h.  Stop.
> make: Leaving directory `/var/lib/dkms/openvswitch/1.4.0/build/datapath/linux'

That figures. The Makefile should be created using Makefile.in
as a template and part of that process is to substitute @..@ sequences
for their desired values.

> Note that *I do* have linux-headers-3.1.0-1-686-pae,
> linux-headers-3.1.0-1-common and linux-kbuild-3.1 installed on my server,
> so it should be able to find what it needs. I used 3.1 because 3.2 just
> crashes when I boot with it, but as I wanted to make sure, I also tried
> to install and run Linux 3.2, and the issue was the same (so it's not a
> Debian Linux 3.1 kernel specific issue, it's really general, and also is
> present when running with latest 3.2 kernel in SID).
> 
> This "makes the package unusable", which in Debian books is an RC bug.
> A fix correcting this issue ASAP would be really appreciated. :)

Curiously installing openvswitch-datapath-dkms 1.4.0-1 does seem
to work for me, also 3.1 but on amd64, though that may be a legacy
of my environment. I'll try and set up pbuilder on this machine
to test that theory, but it may not be until tomorrow.