I just did a modprobe -v and found that the crash (shown below) occurs, more specifically, with the snd-timer.o module.

$lsmod
snd-timer 20644 1 (initializing)

paul wrote:
Hello,

I'm getting a consistent crash w/this module on a Toshiba 3020ct laptop. Sound worked last time I installed some time ago (early 2.4 kernel), though the old modules were probably OSS.

The 2.4.22 kernel is from PlanetCCRMA (low-latency + pre-emptive patches, etc).

The stock CCRMA distro comes w/0.96x-cvs alsa, so I upgraded to 0.98 only to get the same result.

(Regardless of whether there's a configuration problem, shouldn't the module exit more politely?)

Included below are my modules.conf, followed by the crash itself:
-----------
$ cat modules.conf

alias usb-controller usb-ohci
# ALSA
alias char-major-116 snd
alias snd-card-0 snd-opl3sa2

options snd-opl3sa2 isapnp=0 port=0x370 sb_port=0x220 wss_port=0x530 fm_port=0x388 midi_port=0x330 irq=5 dma1=1 dma2=0

# OSS compatibility
alias char-major-14 soundcore
alias sound-slot-0 snd-card-0

alias sound-service-0-0 snd-mixer-oss
alias sound-service-0-1 snd-seq-oss
alias sound-service-0-3 snd-pcm-oss
alias sound-service-0-8 snd-seq-oss
alias sound-service-0-12 snd-pcm-oss

------------
$ modprobe snd-opl3sa2

invalid operand: 0000
CPU: 0
EIP: 0010:[<c70b20ed>] Not tainted
EFLAGS: 00010287
eax: 0000003f ebx: c5262c00 ecx: 00000006 edx: 00000006
esi: 00000040 edi: c5262c10 ebp: c70bc72a esp: c18dbe80
ds: 0018 es: 0018 ss: 0018
Process modprobe (pid: 836, stackpage=c18db000)
Stack: c18dbec0 00000000 c70ba2ce c5262c10 c70bc72a 00000040 c011f9e4 c29a5da0
00000001 00000001 c70b9000 c70ba6df 00000000 c70bc72a c18dbec0 c18dbef0
00000001 00000000 ffffffff 00000000 00000000 c70ae4c0 c14bec80 00008124
Call Trace: [<c70ba2ce>] [<c70bc72a>] [<c011f9e4>] [<c70ba6df>] [<c70bc72a>]
[<c70ae4c0>] [<c70ba831>] [<c70bc72a>] [<c70bc11b>] [<c70bc7bc>] [<c011bf70>]
[<c70bcc88>] [<c70b9060>] [<c70bcbf0>] [<c70b9060>] [<c0108f53>]


Code: 0f 42 c1 8b 74 24 10 89 c1 c1 e9 02 f3 a5 a8 02 74 02 66 a5
 <6>note: modprobe[836] exited with preempt_count 1






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