Bug 75295

Summary: Unresolved symbols when loading bttv kernel module
Product: [Retired] Red Hat Linux Reporter: Josi Romildo Malaquias <romildo>
Component: kernelAssignee: Arjan van de Ven <arjanv>
Status: CLOSED NOTABUG QA Contact: Brian Brock <bbrock>
Severity: medium Docs Contact:
Priority: medium    
Version: 8.0CC: romildo
Target Milestone: ---   
Target Release: ---   
Hardware: athlon   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2003-04-05 16:35:37 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:

Description Josi Romildo Malaquias 2002-10-06 23:52:40 UTC 
From Bugzilla Helper:
User-Agent: Mozilla/5.0 Galeon/1.2.5 (X11; Linux i686; U;) Gecko/20020809

Description of problem:
I have a PixelView Play TV Pro card installed in my computer
and it was running correctly with Red Hat Linux 7.3.

After installing the 8.0 version, I cannot successfuly run
xawtv anymore and it write the messages:

# xawtv
This is xawtv-3.74, running on Linux/i686 (2.4.18-14)
can't open /dev/video0: No such device
v4l2: open /dev/video0: No such device
v4l: open /dev/video0: No such device
no video grabber device available

Looking at /var/log/messages I see that bttv.o failed
loading. Trying to manually load the bttv module gives
unresolved symbol messages:

# insmod bttv
Using /lib/modules/2.4.18-14/kernel/drivers/media/video/bttv.o
/lib/modules/2.4.18-14/kernel/drivers/media/video/bttv.o: unresolved symbol
video_unregister_device_R13dcb4bc
/lib/modules/2.4.18-14/kernel/drivers/media/video/bttv.o: unresolved symbol
i2c_bit_del_bus_R88f4afaf
/lib/modules/2.4.18-14/kernel/drivers/media/video/bttv.o: unresolved symbol
video_register_device_Rb2927b1b
/lib/modules/2.4.18-14/kernel/drivers/media/video/bttv.o: unresolved symbol
i2c_bit_add_bus_R933524db


Version-Release number of selected component (if applicable):


How reproducible:
Always

Steps to Reproduce:
1. Configure /etc/modules.conf with respect to the bttv.o module
2. Run the command "insmod bttv.o"
3.
	

Actual Results:  The bttv.o kernel module is not loaded. The command shows the
following messages:

Using /lib/modules/2.4.18-14/kernel/drivers/media/video/bttv.o
/lib/modules/2.4.18-14/kernel/drivers/media/video/bttv.o: unresolved symbol
video_unregister_device_R13dcb4bc
/lib/modules/2.4.18-14/kernel/drivers/media/video/bttv.o: unresolved symbol
i2c_bit_del_bus_R88f4afaf
/lib/modules/2.4.18-14/kernel/drivers/media/video/bttv.o: unresolved symbol
video_register_device_Rb2927b1b
/lib/modules/2.4.18-14/kernel/drivers/media/video/bttv.o: unresolved symbol
i2c_bit_add_bus_R933524db



Expected Results:  Loading the bttv.o kernel module.

Additional info:

I have a PixelView Play TV Pro card installed in my computer
and it was running correctly with Red Hat Linux 7.3.
Comment 1 Arjan van de Ven 2002-10-07 07:53:42 UTC 
please use "modprobe" and not "insmod". "insmod" doesn't take care of depencies,
in this case the video4linux module needs to have loaded before the bttv one ;(
Comment 2 Josi Romildo Malaquias 2002-10-07 09:52:41 UTC 
Result of running modprobe:

# modprobe -v bttv
/sbin/insmod /lib/modules/2.4.18-14/kernel/drivers/i2c/i2c-algo-bit.o bit_test=1
Using /lib/modules/2.4.18-14/kernel/drivers/i2c/i2c-algo-bit.o
Symbol version prefix ''
/sbin/insmod /lib/modules/2.4.18-14/kernel/drivers/media/video/videodev.o
Using /lib/modules/2.4.18-14/kernel/drivers/media/video/videodev.o
/sbin/insmod /lib/modules/2.4.18-14/kernel/drivers/media/video/bttv.o card=37
autoload=1 pll=1 tuner=2 irq_debug=1 radio=1 bttv_verbose=2
Using /lib/modules/2.4.18-14/kernel/drivers/media/video/bttv.o
/lib/modules/2.4.18-14/kernel/drivers/media/video/bttv.o: init_module: No such
device
Hint: insmod errors can be caused by incorrect module parameters, including
invalid IO or IRQ parameters.
      You may find more information in syslog or the output from dmesg
/lib/modules/2.4.18-14/kernel/drivers/media/video/bttv.o: insmod
/lib/modules/2.4.18-14/kernel/drivers/media/video/bttv.o failed
# delete videodev
# delete i2c-algo-bit
/lib/modules/2.4.18-14/kernel/drivers/media/video/bttv.o: insmod bttv failed


I found the following in dmesg:

i2c-algo-bit.o: i2c bit algorithm module
Linux video capture interface: v1.00
bttv: driver version 0.7.91 loaded
bttv: using 2 buffers with 2080k (4160k total) for capture
bttv: Host bridge is VIA Technologies, Inc. VT8367 [KT266]
Comment 3 Josi Romildo Malaquias 2002-10-14 22:03:45 UTC 
After looking at the hardware, I have discovered the tv card was not firmly
attached to the PCI slot in the motherboard. Correcting this solved the problem.