VB not working with latest Fedora kernel

[stefano.eDR]

I was trying to run a VM after a reboot, but none of the VMs will start.

The reported error when starting the VM is the following:

The provider 'virtualbox' that was requested to back the machine
'default' is reporting that it isn't usable on this system. The
reason is shown below:

VirtualBox is complaining that the kernel module is not loaded. Please
run `VBoxManage --version` or open the VirtualBox GUI to see the error
message which should contain instructions on how to fix this error.

Running VBoxManage --version in the console I get:

WARNING: The vboxdrv kernel module is not loaded. Either there is no module
         available for the current kernel (4.18.5-200.fc28.x86_64) or it failed to
         load. Please try load the kernel module by executing as root

           dnf install akmod-VirtualBox kernel-devel-4.18.5-200.fc28.x86_64
           akmods --kernels 4.18.5-200.fc28.x86_64 && systemctl restart systemd-modules-load.service

         You will not be able to start VMs until this problem is fixed.
5.2.18_RPMFusionr123745

Now when trying to rebuild with akmods --kernels 4.18.5-200.fc28.x86_64 it fails.

The log is the following:

2018/09/14 11:25:43 akmods: Building RPM using the command '/sbin/akmodsbuild --target x86_64 --kernels 4.18.5-200.fc28.x86_64 /usr/src/akmods/VirtualBox-kmod.latest'
                 from /tmp/akmodsbuild.7PQvVBcu/BUILD/VirtualBox-kmod-5.2.18/_kmod_build_4.18.5-200.fc28.x86_64/vboxsf/vfsmod.h:11,
                 from /tmp/akmodsbuild.7PQvVBcu/BUILD/VirtualBox-kmod-5.2.18/_kmod_build_4.18.5-200.fc28.x86_64/vboxsf/utils.c:13:
./include/linux/time32.h:125:57: note: expected ‘const struct timespec *’ but argument is of type ‘struct timespec64 *’
 static inline s64 timespec_to_ns(const struct timespec *ts)
                                  ~~~~~~~~~~~~~~~~~~~~~~~^~
/tmp/akmodsbuild.7PQvVBcu/BUILD/VirtualBox-kmod-5.2.18/_kmod_build_4.18.5-200.fc28.x86_64/vboxsf/utils.c:248:25: error: passing argument 1 of ‘timespec_to_ns’ from incompatible pointer type [-Werror=incompatible-pointer-types]
          timespec_to_ns(&iattr->ia_mtime);
                         ^~~~~~~~~~~~~~~~
In file included from ./include/linux/time.h:73,
                 from ./include/linux/stat.h:19,
                 from ./include/linux/fs.h:10,
                 from ./include/linux/backing-dev.h:13,
                 from /tmp/akmodsbuild.7PQvVBcu/BUILD/VirtualBox-kmod-5.2.18/_kmod_build_4.18.5-200.fc28.x86_64/vboxsf/vfsmod.h:11,
                 from /tmp/akmodsbuild.7PQvVBcu/BUILD/VirtualBox-kmod-5.2.18/_kmod_build_4.18.5-200.fc28.x86_64/vboxsf/utils.c:13:
./include/linux/time32.h:125:57: note: expected ‘const struct timespec *’ but argument is of type ‘struct timespec64 *’
 static inline s64 timespec_to_ns(const struct timespec *ts)
                                  ~~~~~~~~~~~~~~~~~~~~~~~^~
cc1: some warnings being treated as errors
make[1]: *** [scripts/Makefile.build:317: /tmp/akmodsbuild.7PQvVBcu/BUILD/VirtualBox-kmod-5.2.18/_kmod_build_4.18.5-200.fc28.x86_64/vboxsf/utils.o] Error 1
make[1]: *** Waiting for unfinished jobs....
make: *** [Makefile:1504: _module_/tmp/akmodsbuild.7PQvVBcu/BUILD/VirtualBox-kmod-5.2.18/_kmod_build_4.18.5-200.fc28.x86_64/vboxsf] Error 2
make: Leaving directory '/usr/src/kernels/4.18.5-200.fc28.x86_64'
error: Bad exit status from /var/tmp/rpm-tmp.AhQcYC (%build)


RPM build errors:
    user mockbuild does not exist - using root
    group mockbuild does not exist - using root
    user mockbuild does not exist - using root
    group mockbuild does not exist - using root
    user mockbuild does not exist - using root
    group mockbuild does not exist - using root
    user mockbuild does not exist - using root
    group mockbuild does not exist - using root
    Bad exit status from /var/tmp/rpm-tmp.AhQcYC (%build)

[janitor]

#17981