Comment # 21 on bug 983927 from Stefan Dirsch

Larry, I can easily reproduce this with kernel version 4.1.21-14-default
by installing virtualbox-guest on the host system.

Retrieving package virtualbox-guest-kmp-default-5.0.22_k4.1.26_21-19.1.x86_64  
                                       (1/1), 366,5 KiB (621,6 KiB unpacked)
Retrieving: virtualbox-guest-kmp-default-5.0.22_k4.1.26_21-19.1.x86_64.rpm
...............................................................[done (3,7
MiB/s)]
Checking for file conflicts:
.........................................................................................................................[done]
(1/1) Installing: virtualbox-guest-kmp-default-5.0.22_k4.1.26_21-19.1
................................................................................[done]
Additional rpm output:
depmod: WARNING: //lib/modules/4.1.26-21-default/misc/vboxvideo.ko disagrees
about version of symbol VBoxGuest_RTLogBackdoorPrintf
depmod: WARNING: //lib/modules/4.1.26-21-default/misc/vboxvideo.ko disagrees
about version of symbol VBoxGuest_RTErrConvertToErrno
depmod: WARNING: //lib/modules/4.1.26-21-default/misc/vboxvideo.ko disagrees
about version of symbol VBoxGuest_RTAssertShouldPanic
depmod: WARNING: //lib/modules/4.1.26-21-default/misc/vboxvideo.ko disagrees
about version of symbol VBoxGuest_RTAssertMsg1Weak
depmod: WARNING: //lib/modules/4.1.26-21-default/misc/vboxvideo.ko disagrees
about version of symbol VBoxGuest_RTAssertMsg2Weak
Warning: /lib/modules/4.1.26-21-default is inconsistent
Warning: weak-updates symlinks might not be created