BUG: Yamaha OPL3SA2 does not work with ALSA on 2.6 kernels.

BUG: Yamaha OPL3SA2 does not work with ALSA on 2.6 kernels.

[Andrew Haninger]

Hello.

I have a 5 year old Gateway Solo 2500 that is currently running Linux
2.6.12.2. If I install ALSA and try to have alsaconf bruteforce-detect
the OPL3SA2 sound card, it will say that it has detected it, but
loading the modules will fail. If I install Linux 2.4 and
recompile/rerun alsaconf, the detection works fine and the card works.
Copying the configuration detected under 2.4 into a modprobe.conf on
2.6 allows me to use the card in 2.6 with occasional crashes (which
might be due to suspend2).

Searching around the net, I find many other people having trouble with
these cards and the ALSA-Linux2.6 combination. On one page, someone
suggested that there were changes made between 2.4 and 2.6 to the ISA
code that broke ALSA's detection routines.

I'm not sure what information might be needed in order to get this
card working well once and for all, but if someone will let me know,
I'd be happy to provide.

Thanks.

-Andy

Re: BUG: Yamaha OPL3SA2 does not work with ALSA on 2.6 kernels.

[Adrian Bunk]

On Mon, Jul 25, 2005 at 10:31:37AM -0400, Andrew Haninger wrote:

> Hello.

Hi Andrew,

> I have a 5 year old Gateway Solo 2500 that is currently running Linux
> 2.6.12.2. If I install ALSA and try to have alsaconf bruteforce-detect
> the OPL3SA2 sound card, it will say that it has detected it, but
> loading the modules will fail. If I install Linux 2.4 and
> recompile/rerun alsaconf, the detection works fine and the card works.
> Copying the configuration detected under 2.4 into a modprobe.conf on
> 2.6 allows me to use the card in 2.6 with occasional crashes (which
> might be due to suspend2).

the ALSA people might be able to help you (Cc'ed).

> Searching around the net, I find many other people having trouble with
> these cards and the ALSA-Linux2.6 combination. On one page, someone
> suggested that there were changes made between 2.4 and 2.6 to the ISA
> code that broke ALSA's detection routines.
> 
> I'm not sure what information might be needed in order to get this
> card working well once and for all, but if someone will let me know,
> I'd be happy to provide.

Does the OSS driver work in 2.6?

> Thanks.
> 
> -Andy

cu
Adrian

-- 

       "Is there not promise of rain?" Ling Tan asked suddenly out
        of the darkness. There had been need of rain for many days.
       "Only a promise," Lao Er said.
                                       Pearl S. Buck - Dragon Seed

Re: BUG: Yamaha OPL3SA2 does not work with ALSA on 2.6 kernels.

[Andrew Haninger]

On 7/25/05, Adrian Bunk <bunk@stusta.de> wrote:
> Does the OSS driver work in 2.6?
I was able to get the OSS module (opl3sa2) installed in 2.6 and I was
able to get some nice hiss when doing 'cat /dev/urandom > /dev/dsp'. I
used the following modprobe line:

modprobe opl3sa2 io=0x370 irq=11 dma=0 dma2=1 mss_io=0x530 isapnp=0

the isapnp=0 part appeared to be required. The following showed up in
dmesg upon inserting the OSS module:

opl3sa2: Chipset version = 0x7
opl3sa2: Found OPL3-SA3 (YMF715E or YMF719E)

However, when I try to rmmod the opl3sa2 module, I get an Oops:

Unable to handle kernel NULL pointer dereference at virtual address 00000000
 printing eip:
c037ae01
*pde = 00000000
Oops: 0002 [#1]
PREEMPT
Modules linked in: opl3sa2 ad1848 mpu401 sound soundcore vfat fat
sd_mod usb_storage lp parport ide_scsi rtc
CPU:    0
EIP:    0060:[<c037ae01>]    Not tainted VLI
EFLAGS: 00010046   (2.6.12.2)
EIP is at wait_for_completion+0x71/0xf0
eax: cca91180   ebx: c52ea000   ecx: c52ebf20   edx: 00000000
esi: c52ea000   edi: cca9117c   ebp: c52ebf40   esp: c52ebef4
ds: 007b   es: 007b   ss: 0068
Process rmmod (pid: 11277, threadinfo=c52ea000 task=c79ce550)
Stack: 00000000 c79ce550 c0113cf0 00000000 00000000 c52ea000 c0e899e0 c0209ffe
       00000001 c79ce550 c0113cf0 cca91180 00000114 00000001 00000000 cca91174
       00000114 00000001 00000000 c52ea000 cca8f964 cca91174 00000000 cca91200
Call Trace:
 [<c0113cf0>] default_wake_function+0x0/0x20
 [<c0209ffe>] kobject_put+0x1e/0x30
 [<c0113cf0>] default_wake_function+0x0/0x20
 [<cca8f964>] cleanup_opl3sa2+0x74/0x8c [opl3sa2]
 [<c0131bc8>] sys_delete_module+0x178/0x1b0
 [<c015b2c0>] sys_munmap+0x50/0x80
 [<c0103205>] syscall_call+0x7/0xb
Code: 00 00 8b 03 c7 45 d4 01 00 00 00 c7 45 bc f0 3c 11 c0 c7 45 dc
f0 3c 11 c0 89 45 b8 89 45 d8 8d 47 04 8b 50 04 89 45 e0 89 48 04 <89>
0a 89 55 e4 8d 76 00 8d bc 27 00 00 00 00 8b 03 c7 00 02 00
 <6>note: rmmod[11277] exited with preempt_count 1

and now when I try to rmmod the module again, I get:

ERROR: Removing 'opl3sa2': Device or resource busy

So, yes, given the correct parameters, the OSS module (just like the
ALSA module) works with the occasional Oops. I guess the Oopses are
acceptable for now; it's the ALSA detection routines that are broken
themselves or that are broken by something in the 2.6 kernel (remember
that they work fine in 2.4).

Thanks.

-Andy

Re: BUG: Yamaha OPL3SA2 does not work with ALSA on 2.6 kernels.

[Jaroslav Kysela]

On Mon, 25 Jul 2005, Andrew Haninger wrote:

> Hello.
> 
> I have a 5 year old Gateway Solo 2500 that is currently running Linux
> 2.6.12.2. If I install ALSA and try to have alsaconf bruteforce-detect
> the OPL3SA2 sound card, it will say that it has detected it, but
> loading the modules will fail. If I install Linux 2.4 and
> recompile/rerun alsaconf, the detection works fine and the card works.
> Copying the configuration detected under 2.4 into a modprobe.conf on
> 2.6 allows me to use the card in 2.6 with occasional crashes (which
> might be due to suspend2).

Please, report this problem to our bug-tracking-system:

https://bugtrack.alsa-project.org/alsa-bug

We have already two similar reports #440 and #879. Please, provide us
all info (working manual conf etc.)..

						Jaroslav

-----
Jaroslav Kysela <perex@suse.cz>
Linux Kernel Sound Maintainer
ALSA Project, SUSE Labs

Re: BUG: Yamaha OPL3SA2 does not work with ALSA on 2.6 kernels.

[Andrew Haninger]

On 7/26/05, Jaroslav Kysela <perex@suse.cz> wrote:
> We have already two similar reports #440 and #879. Please, provide us
> all info (working manual conf etc.)..
Yes. #879 is the one that mentions that this might be a kernel bug (so
I reported it here):

"I suspect this is kernel bug and it conserns ISA support.
I would be happy if you kick some kernel developers buts because they
have ignored my bugreport for quite long time now."

I don't know how correct/incorrect the above may be, but I figured it
was possible.

I'll report what I know in bug #879.

Thanks.

-Andy

Re: BUG: Yamaha OPL3SA2 does not work with ALSA on 2.6 kernels.

[Andrew Haninger]

On 7/26/05, Andrew Haninger <ahaning@gmail.com> wrote:
> I'll report what I know in bug #879.
*Durr* I didn't scroll down. I've already reported my current
semi-working (works+oopses) setup in that bug report

I'm reporting this here now because of the part of that bug report
that suggests that it might actually be a kernel bug.

-Andy