b44 module problems

b44 module problems

[Antonio Dolcetta]

Hi, I'm having problems with the new b44 module on linux-2.6-test1 patched
with the same patch that evenually got into test-2

this is how i can reproduce the problem:

1 ) boot and load the module, don't plug in the ethernet cable
2 ) try to configure the card via dhcp, it times out
3 ) rmmod b44

at this point I get cpu at 90% 
new istances of lsmod and rmmod hang during execution
i get the following kernel events:

unregister_netdevice: waiting for eth0 to become free. Usage count = 1

every few seconds, 
is there any more testing i can do for you?

the module works flawlessly otherwise
thank you

	Antonio Dolcetta

-- 
Speaking just for me, I don't think I have Linux blinders on my eyes.
I can see other platforms, but I *choose* to ignore them on the theory
that if I ignore them hard enough they will go away.
This theory is obviously crazy. However, it also appears to be working.
                -- Eric S. Raymond

Re: b44 module problems

[Pekka Pietikainen]

On Mon, Jul 28, 2003 at 11:43:02AM +0200, Antonio Dolcetta wrote:
> 1 ) boot and load the module, don't plug in the ethernet cable
> 2 ) try to configure the card via dhcp, it times out
> 3 ) rmmod b44
> at this point I get cpu at 90% 
> new istances of lsmod and rmmod hang during execution
> i get the following kernel events:
> unregister_netdevice: waiting for eth0 to become free. Usage count = 1
> every few seconds, 
> is there any more testing i can do for you?
> 
> the module works flawlessly otherwise
> thank you
Hi

You're not trying to use ipv6 or have the module loaded by any chance? When working
on the driver I had similar problems with rmmod on 2.5 when the ipv6 module
was loaded, without it unloading worked just fine (if I understood correctly,
this is a known problem with all ethernet drivers). In any case I'll try 
reproducing the problem when I get back home.

Re: b44 module problems

[David S. Miller]

On Mon, 28 Jul 2003 12:56:31 +0300
Pekka Pietikainen <pp@ee.oulu.fi> wrote:

> You're not trying to use ipv6 or have the module loaded by any chance? When working
> on the driver I had similar problems with rmmod on 2.5 when the ipv6 module
> was loaded, without it unloading worked just fine (if I understood correctly,
> this is a known problem with all ethernet drivers).

Yes, and this is fixed in 2.6.0-test2