snd_t4wave.ko locks up laptop

[John Smith]

Sometimes my laptop freezes when I load the snd_t4wave.ko module. Other
times it freezes when I'm adjusting mixer levels. One time the machine
locked up during loading of the Asterisk PBX.  This is why I'm posting
all this info. The laptop started working well around 5.3-STABLE and up
to 5.5-STABLE I went to 6.1 and now this sound module is fubar. The wi
driver is also giving me problems as of 6.1-STABLE, but I switched to an
ath card that seems to work better.

#uname -a FreeBSD laptop.none 6.1-STABLE 6.1-STABLE#1: Sun Sep 10
13:27:57 PDT 2006 root at laptop.none:/usr/obj/usr/src/sys/GENERIC i386

#kldstat
Id Refs Address    Size     Name
 1   10 0xc0400000 6ef440   kernel
 2    1 0xc0af0000 32e4     splash_bmp.ko
 3    1 0xc0af4000 2514     splash_pcx.ko
 4    1 0xc0af7000 4228     vesa.ko
 5    1 0xc0b47000 45b8     snd_t4dwave.ko
 6    2 0xc0b4c000 22b88    sound.ko
 7    1 0xc0b6f000 59f00    acpi.ko


#lspci
00:00.0 Host bridge: ATI Technologies Inc RS200/RS200M AGP Bridge [IGP
340M] (rev 02)
00:01.0 PCI bridge: ATI Technologies Inc PCI Bridge [IGP 340M]
00:02.0 USB Controller: ALi Corporation USB 1.1 Controller (rev 03)
00:06.0 Multimedia audio controller: ALi Corporation M5451 PCI AC-Link
Controller Audio Device (rev 02)
00:07.0 ISA bridge: ALi Corporation M1533 PCI to ISA Bridge [Aladdin IV]
00:08.0 Modem: ALi Corporation M5457 AC'97 Modem Controller
00:09.0 Ethernet controller: Atheros Communications, Inc. Unknown device
001a (rev 01)
00:0a.0 CardBus bridge: O2 Micro, Inc. OZ601/6912/711E0
CardBus/SmartCardBus Controller
00:10.0 IDE interface: ALi Corporation M5229 IDE (rev c4)
00:11.0 Bridge: ALi Corporation M7101 Power Management Controller [PMU]
00:12.0 Ethernet controller: National Semiconductor Corporation DP83815
(MacPhyter) Ethernet Controller
01:05.0 VGA compatible controller: ATI Technologies Inc Radeon IGP
330M/340M/350M