Loading new ALSA modules

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This may be a sily question, but I just compiled that latest version of Alsa drivers for my system and I'd like to load them and test them out.
 
The problem I have is that I've already got alsa drivers installed (as return by lsmod). So when I try to unload those modules I get a Seg Fault error:
 
> sudo modprobe -r snd_azx
sh: line1: 7204 Segmentation fault  /usr/sbin/alsactl store >/dev/null 2>&1
 
Am I missing something here? What are the proper steps to unload a module, and then load in a new version of the module?
 
This doesn't seem to be covered in any documentation. Most of what I can find just talks about loading in new modules fro the first time. Don't I have to unload the old one first?
 
The system is Redhat - linux 2.6.9-34.ELsmp
 
The sound modules I want to unload are: snd_azx, snd_pcm_oss, snd_mixer_oss, snd_pcm, snd_timer, snd, snd_page_alloc So I can replace them with the newwly compiled modules.
 
Actually, it looks like snd_azx is no longer loaded.... Still I'm a bit confused about the error message. modprobe is not a shell script.
 
Ok, I think the error must be because its trying to run my newwly compiled version of alsactl. Guess I should have either not installed the new stuff, or unloaded the older modules first... Wish there was more documentation on this stuff...
 
-Brooke
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