ovs module build failing on kernel version 3.11 (ubuntu 13.10). This problem does not occur when building for kernel version 3.13 (ubuntu 14.04).
I performed a fresh clone of OVS, built for debian, installed common package, tried to install datapath-dkms package - which failed compilation. (Originally found this when catching up to latest master while preparing a patch - created a brand new workspace to confirm the problem.) Suspect this is due to recent patch named 'datapath: Add support for RHEL-7 / CentOS-7 kernel.'. Previously, datapath/inux/compat/include/net/vxlan.h tested for kernel version 3.12 or better, if true it would include_next <net/vxlan.h>. Now it tries to include it even if kernel version is 3.11. The file net/vxlan.h does not exist prior to kernel version 3.12. What I did: git clone https://github.com/openvswitch/ovs.git ./boot.sh ./configure DEB_BUILD_OPTIONS='parallel=3' fakeroot debian/rules binary Build was successful, then did: dpkg -i openvswitch-common_2.3.90-1_amd64.deb dpkg -i openvswitch-datapath-dkms_2.3.90-1_all.deb Output as follows: (Reading database ... 451459 files and directories currently installed.) Preparing to replace openvswitch-datapath-dkms 2.1.90-PBBR1.1 (using openvswitch-datapath-dkms_2.3.90-1_all.deb) ... -------- Uninstall Beginning -------- Module: openvswitch Version: 2.1.90 Kernel: 3.11.0-26-generic (x86_64) ------------------------------------- Status: Before uninstall, this module version was ACTIVE on this kernel. openvswitch.ko: - Uninstallation - Deleting from: /lib/modules/3.11.0-26-generic/updates/dkms/ - Original module - No original module was found for this module on this kernel. - Use the dkms install command to reinstall any previous module version. depmod...... DKMS: uninstall completed. ------------------------------ Deleting module version: 2.1.90 completely from the DKMS tree. ------------------------------ Done. Unpacking replacement openvswitch-datapath-dkms ... Setting up openvswitch-datapath-dkms (2.3.90-1) ... Creating symlink /var/lib/dkms/openvswitch/2.3.90/source -> /usr/src/openvswitch-2.3.90 DKMS: add completed. Kernel preparation unnecessary for this kernel. Skipping... Building module: cleaning build area....(bad exit status: 2) ./configure --with-linux='/lib/modules/3.11.0-26-generic/build' && make -C datapath/linux..........(bad exit status: 2) Error! Bad return status for module build on kernel: 3.11.0-26-generic (x86_64) Consult /var/lib/dkms/openvswitch/2.3.90/build/make.log for more information. emacs /var/lib/dkms/openvswitch/2.3.90/build/make.log& The following is copied from end of log... make -C /lib/modules/3.11.0-26-generic/build M=/var/lib/dkms/openvswitch/2.3.90/build/datapath/linux modules make[1]: Entering directory `/usr/src/linux-headers-3.11.0-26-generic' CC [M] /var/lib/dkms/openvswitch/2.3.90/build/datapath/linux/actions.o CC [M] /var/lib/dkms/openvswitch/2.3.90/build/datapath/linux/datapath.o CC [M] /var/lib/dkms/openvswitch/2.3.90/build/datapath/linux/dp_notify.o CC [M] /var/lib/dkms/openvswitch/2.3.90/build/datapath/linux/flow.o CC [M] /var/lib/dkms/openvswitch/2.3.90/build/datapath/linux/flow_netlink.o CC [M] /var/lib/dkms/openvswitch/2.3.90/build/datapath/linux/flow_table.o CC [M] /var/lib/dkms/openvswitch/2.3.90/build/datapath/linux/vport.o CC [M] /var/lib/dkms/openvswitch/2.3.90/build/datapath/linux/vport-geneve.o In file included from /var/lib/dkms/openvswitch/2.3.90/build/datapath/linux/vport-geneve.c:34:0: /var/lib/dkms/openvswitch/2.3.90/build/datapath/linux/compat/include/net/vxlan.h:11:28: fatal error: net/vxlan.h: No such file or directory #include_next <net/vxlan.h> ^ compilation terminated. make[2]: *** [/var/lib/dkms/openvswitch/2.3.90/build/datapath/linux/vport-geneve.o] Error 1 make[1]: *** [_module_/var/lib/dkms/openvswitch/2.3.90/build/datapath/linux] Error 2 make[1]: Leaving directory `/usr/src/linux-headers-3.11.0-26-generic' make: *** [default] Error 2 make: Leaving directory `/var/lib/dkms/openvswitch/2.3.90/build/datapath/linux'
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