Re: 0.9.7c, cs4236b and kernel oops

[Takashi Iwai <tiwai@suse.de>]

At Tue, 14 Oct 2003 21:24:56 -0400,
Dennis Veatch wrote:
> 
> This is a Dell GX1 with a cs4236b integrated sound card. Running kernel 
> version 2.4.20. I have tried recompiling the kernel any number of ways making 
> the sound stuff modules and part of the kernel all with the same results. I 
> have wiped out /lib/modules and /usr/src/linux entirely, re-downloaded all 
> the kernel stuff and still had the same results. If I use the 0.9.6 version 
> of alsa-driver there are no problems.

is it a pnp device or non-pnp?

there are no big changes in the cs423x codes.
so the problem must be in either pnp layer or the change in the core
part.

if it's pnp card, please try to replace snd-pnp.o with the old one in
0.9.6.


Takashi

> 
> During boot up it does show the cs4236b being detected correctly. I can 
> install Mandrake 9.1 on this box and there is not kernel oops.
> 
> If I comment out the alsa line in /etc/modules.conf the system will boot. Then 
> if I modprobe soundcore, things are still fine. If I try modprobing the 
> snd-cs4236, boom, kernel oops.
> 
> Up until alsa-driver version 0.9.6 the sound card worked fine. No problems.  
> So I am reasonable sure this has nothing to do with the kernel.
> 
> Since versions 0.9.7a, b and c any attempt to load the cs4236 stuff causes a 
> kernel oops. Below is some of the oops.
> 
> I have looked over the alsa web site and googled on this issue only to find 
> some what dated information that leads me to believe this was an issue at one 
> time but was supposed to have been corrected by now.
> _______________________________________________________
> Staring sound driver: snd-cs4236 Unable to handle kernel NULL point 
> dereference at virtual address 00000060
> printing eip:
> f887752b
> *pde = 00000000
> Oops: 0000
> .
> .
> .
> .
> .
> .
> 
> and ends with;
> 
> <0>Kernel panis: Aiee, killing interrupt handler!
> In interrupt handler - not syncing
> -- 
> Registered Linux user 193414
> http://counter.li.org
> 
> "Trying"? My contribution was much closer to a "feeble wave in the general 
> direction of something that might lead you one step closer to a solution 
> if you squint really hard and do all of the work."
> 
> 
> 
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