[vox-tech] SoundBlaster 16 woes

Bill Kendrick nbs at sonic.net
Sun Dec 26 23:37:32 PST 2004


On Mon, Dec 27, 2004 at 01:42:28AM -0500, Peter Jay Salzman wrote:
> On Sun 26 Dec 04, 10:27 PM, Bill Kendrick <nbs at sonic.net> said:
> > On Sun, Dec 26, 2004 at 10:39:21PM -0500, Peter Jay Salzman wrote:
> > > 
> > > One: Do you see anything interesting with this:
> > > 
> > >    strace modprobe -a sb 2>&1 | egrep -v 'map|brk'
> > > 
> > 
> > What constitutes "interesting?" ;^)
>  
> Anything that says "ENO*" might be interesting.

All I notice (via grep) is:

  access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or dir...
  open("/etc/ld.so.preload", O_RDONLY)    = -1 ENOENT (No such file or dir...
  access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or dir...
  access("/lib/modutils/macros", R_OK)    = -1 ENOENT (No such file or dir...
  stat64("/etc/conf.modules", 0xbfffb42c) = -1 ENOENT (No such file or dir...


> Use your intuition!  Since I removed all the memory (un)mapping and brk-ing,
> you should be familiar with a lot of what's going on.

I've never strace'd modprobe! ;^)  I also haven't had a reason to strace
in a while.  (For the most part, Tux Paint isn't crashing, and it's about
the only Linux development I've had time to do lately.  Getting rusty!)


> Wild stab in the dark -- do "depmod -a".

All I get is:

  depmod: *** Unresolved symbols in /lib/modules/2.4.27-1-686/misc/atarisio.o

"atarisio" is a module I compiled from source, and will need to recompile,
it seems. :)


> The sb module is certainly not behaving.  Do the strace and look at it.
> You'll know if something is wrong.  I'm wondering if it's a kernel
> dependency bug?

Hrm...  I see (via strace) that /etc/modules.conf is being read.

It looks like this was generated by 'update-modules', and I see:

  ### update-modules: start processing /etc/modutils/alsa-base

And in there, I see /this/:

  alias sb off


Hrm!  Time to Google again!

-bill!


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