AC-97 problem between RELENG_4_8 and RELENG_4

[Marc Ramirez]

Sorry if this is a known problem...

I've been tracking RELENG_4 on my Toshiba laptop for a while now; a
couple of months ago (not sure when) my sound stopped working. More
specifically, when it gets to the pcm probe, the boot hangs. I
dual-boot with WinXP and figured that somehow XP had hosed the
hardware, so I wrote it off.

Today, I made world with RELENG_4_8, and voila, my sound's back.
Kernel config is the same; boots fine with RELENG_4_8, hangs with
RELENG_4. Laptop is a Toshiba 1415-S105.

I'm attaching the output of dmesg for the working kernel, the kernel
config file (LAPTOP), and the output of pciconf -vl.

I'll try to get better info on exactly what the output is when 4.9
hangs.

How can I help?

--
Marc Ramirez
Blue Circle Software Corporation
513-688-1070 (main)
513-382-1270 (direct)
http://www.bluecirclesoft.com
http://www.mrami.com (personal)