[Pkg-alsa-devel] Bug#434573: modprobe -v fails to show module inserted

[David Lawyer]

On Mon, Jul 30, 2007 at 08:17:26PM +0200, Elimar Riesebieter wrote:
> On Sun, 29 Jul 2007 the mental interface of
> David Lawyer told:
> 
> > On Sun, Jul 29, 2007 at 05:00:53PM +0200, Elimar Riesebieter wrote:
> > > Hi David,
> > > 
> > > On Tue, 24 Jul 2007 the mental interface of
> > > David Lawyer told:
> > > 
> > > > Package: module-init-tools
> > > > Version: 3.3-pre11-4_i386
> > > > 
> > > > When I insert snd-sb16 using modprobe -v snd-sb16 irq=2, it fails to
> > > > display the inserted module.  But it does display the dependencies
> > > > loaded.
> > > 
> > > Could you please provide the output of:
> > > # modinfo snd-sb16
> 
> OK, Thanks. It looks good.
> [...]
> Could you try to boot your machine with the following entry:
> 
> echo "snd-sb16 irq=2" >> /etc/modules
This results in no sound modules loaded.  But if I use
/etc/modules-2.6 a lot of sound modules load.  This is because I
needed to load different modules with different kernels like kernel
versions 2.2 2.4 etc.  So snd-sb16 loads but with irq=5 per
/proc/interrupts.  Now I can't dial out with my modem due to an
interrupt conflict since it also uses irq 5.  But I at least get an
error message that the resource is busy.

How do I dial out?  If I remove the offending module with modprobe -r
snd-sb16 it's even worse.  The modem will then try to dial out but
since interrupts are not working for the modem's serial port I get
all sorts of error messages like modem not responding.  But I removed
the snd-sb16 from /etc/modules-2.6, rebooted, and then my modem worked
OK.  Why?  I guess the reset line of the isa bus gets toggled on
reboot and the card resets to irq=2 as set by jumpers.  It's really at
irq2 since my serial port card (PCI) set at irq2 conflicts and causes
getty to respawn too fast when I try using a dumb terminal on this
serial port.  To free irq2 I put the dumb terminal on another serial
port.  I actually may eventually put the sound card on irq=10, but
when I tried to do that a couple of weeks ago it didn't work either.
So if it gets fixed for irq2 (=irq9) it will likely be fixed for
irq10.

			David Lawyer