On 2016-06-26 17:07, Hans Verkuil wrote:
On 06/26/2016 04:29 PM, Torbjorn Jansson wrote:
Hello
if i use media_build and modprobe cx23885 i get:
# modprobe cx23885
modprobe: ERROR: could not insert 'cx23885': Exec format error
and on dmesg i get:
frame_vector: exports duplicate symbol frame_vector_create (owned by kernel)
The frame_vector.ko module was incorrectly installed in /lib/modules/`uname -r`
(probably in the kernel/mm directory). Your kernel already has that module
compiled in, so that's the reason for the duplicate symbol.
Remove that module and run 'depmod -a' and it should work again.
I've seen this before, but I don't know why media_build compiles and installs it
for a kernel that doesn't need it.
thanks, that helped.
i removed frame_vector.ko and that solved the problem.
is it possible that the media_build scripts always make the module but
only installs frame_vector.ko based on some conditions?
if so, it might be my own fault.
because i test different media build versions i want an easy way to
remove just the modules produced by media build so i tend to first build
it normally but instead of make install i copy over the modules manually.
copying all *.ko modules under media_build/v4l to /lib/modules/`uname
-r`/updates/media and then run depmod.
this way i can just revert by deleting the entire updates/media folder
and wont have to go thru loads of different folders and hunt for the
relevant .ko files.
anyway, wish i had asked you earlier back in february/march when i first
ran into this frame_vector problem.
now i can hopefully continue my troubleshooting, i suspect i need to fix
some application problems too since it looks like this driver (compared
to the old from dvbsky) don't support the old dvb api for getting signal
strength causing application issues since the program is not yet updated
fully to new dvb api.
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