[linux-dvb] problem loading modules for pvr-150, exports duplicate symbols

daniel åkerud daniel.akerud at gmail.com
Wed Apr 2 23:47:55 CEST 2008


On Sun, Mar 30, 2008 at 3:06 PM, daniel åkerud <daniel.akerud at gmail.com>
wrote:

> I did an hg pull a few weeks ago and have since then problems loading
> drivers for my pvr-150 card. The first error message comes when v4l2_common
> is loaded:
>   FATAL: Error inserting v4l2_common
> (/lib/modules/2.6.22-14-generic/kernel/drivers/media/video/v4l2-common.ko):
> Invalid module format
> dmesg reveals:
>   [ 3259.775779] v4l2_common: exports duplicate symbol v4l_printk_ioctl
> (owned by videodev)
>
> Trying to unload videodev and then loading it works, but the ivtv module
> seems to require the symbols exported by videodev:
> da at brutus:~$ sudo modprobe -r videodev
> da at brutus:~$ sudo modprobe v4l2_common
> da at brutus:~$ sudo modprobe ivtv
> WARNING: Error inserting videodev
> (/lib/modules/2.6.22-14-generic/kernel/drivers/media/video/videodev.ko):
> Invalid module format
> FATAL: Error inserting ivtv
> (/lib/modules/2.6.22-14-generic/kernel/drivers/media/video/ivtv/ivtv.ko):
> Unknown symbol in module, or unknown parameter (see dmesg)
> and dmesg reveals:
> [ 3346.365132] ivtv: Unknown symbol video_unregister_device
> [ 3346.365189] ivtv: Unknown symbol video_device_alloc
> [ 3346.365242] ivtv: Unknown symbol video_register_device
> [ 3346.365507] ivtv: Unknown symbol video_usercopy
> [ 3346.365553] ivtv: Unknown symbol video_device_release
>
> now loading videodev again this happens:
> da at brutus:~$ sudo modprobe videodev
> FATAL: Error inserting videodev
> (/lib/modules/2.6.22-14-generic/kernel/drivers/media/video/videodev.ko):
> Invalid module format
>
> dmesg reveals:
> [ 3385.071755] videodev: exports duplicate symbol v4l_printk_ioctl (owned
> by v4l2_common)
>
> I have done make clean which didn't solve it. Any help is appreciated. I
> am running trunk v4l-dvb drivers on ubuntu 7.10. The problem appeard about
> 2 weeks ago.
>
> /D
>
>
>
For future reference, if anyone gets this problem, I found the solution
here:
https://bugs.launchpad.net/ubuntu/+source/gspca/+bug/160814
ReInstalling all the headers and image for current kernel worked for me.

/D
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