Hi Stanley,
In short words, you need to upgrade the kernel. Also, blacklist or delete the snd-cs4236.ko module.
A longer description. The ALSA page about Tecra laptop you mentioned is wrong. Your CS4232 card is a PNP BIOS device and does not need any parameters. However, your kernel is dated 20080623 and there was a fix for a cs4232 driver crash commited on 20080727 to the kernel. The crash is visible in your dmesg file:
[ 91.243845] BUG: unable to handle kernel NULL pointer dereference at 00000158 [ 91.244314] IP: [<c02088ad>] pnp_activate_dev+0x3/0x3a [ 91.244714] *pde = 00000000 [ 91.244977] Oops: 0000 [#1]
Next thing is that your have a second driver loaded: the snd-cs4236. Do not load this driver. AFAIR, the snd-cs4236 driver should be blacklisted or removed on laptop with the cs4232 chip and PNP BIOS. The cs4236 and cs4232 have the same PNP BIOS id-s. The snd-cs4236 was incorrectly loaded instead of the snd-cs4232 at least on my laptop (old Dell).
I hope this helps you, Krzysztof
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