Today I had the same problem upgrading from 9.0.2 to 9.0.3 on a KIII Pro. Logs reports a problem loading the amlvideodri module. Trying manually I get this:
CoreELEC:~ # modprobe amlvideodri
modprobe: ERROR: could not insert ‘amlvideodri’: Exec format error
I had to downgrade back to 9.0.2.
Some more info:
CoreELEC:~ # modinfo amlvideodri
filename: /lib/modules/3.14.29/updates/driver.dvb.crazycat_aml/amlvideodri.ko
license: GPL
author: amlogic-sh
description: pass a frame of amlogic video codec device to user in style of v4l2
depends: videobuf-core,videodev,videobuf-res
vermagic: 3.14.29 SMP mod_unload aarch64
parm: vid_limit:capture memory limit in megabytes (uint)
parm: freerun_mode:av synchronization int kernel (uint)
Hope it helps.