Re: awe64 isa pnp ALSA problems since 2.6.17

[Takashi Iwai <tiwai@suse.de>]

At Fri, 30 Jun 2006 22:57:03 +0200,
Santiago Garcia Mantinan wrote:
> 
> Hi!
> 
> I'm experiencing some problems on 2.6.17 that I didn't have on 2.6.16, most
> noticeable are the messages when alsa is loaded:
> 
> setup_irq: irq handler mismatch
>  <c012387b> setup_irq+0xe5/0xfb  <c01bfc95> pnp_test_handler+0x0/0x6
>  <c01238fc> request_irq+0x6b/0x8b  <c01bfe55> pnp_check_irq+0xb8/0x12f
>  <c01bfc95> pnp_test_handler+0x0/0x6  <c01c083b> pnp_assign_irq+0xd7/0xf4
>  <c01c0acd> pnp_assign_resources+0x1bc/0x23a  <c01c0bac>
> pnp_auto_config_dev+0x6
> 1/0x8f
>  <c01c0bf9> pnp_activate_dev+0x1f/0x46  <d08de81b>
> snd_sb16_pnp_detect+0x1ae/0x3
> 4f [snd_sbawe]
>  <c01bf3d5> card_probe+0xb1/0x104  <c01bf4a8>
> pnp_register_card_driver+0x80/0x90
>  <d085a070> alsa_card_sb16_init+0x70/0xae [snd_sbawe]  <c01223ba>
> sys_init_modul
> e+0x1103/0x1272
>  <c01024b3> syscall_call+0x7/0xb 
> pnp: Device 00:01.00 activated.
> pnp: Device 00:01.02 activated.
> 
> before this messages isapnp is initialiced without any problem with this
> messages:
> 
> isapnp: Scanning for PnP cards...
> pnp: SB audio device quirk - increasing port range
> pnp: AWE32 quirk - adding two ports
> isapnp: Card 'Creative SB AWE64 PnP'
> isapnp: 1 Plug & Play card detected total
> 
> As I said this is only happening on 2.6.17 and not on 2.6.16, also some
> programs still using the oss api are sounding really bad now (I noticed this
> on skype, but not on kiax or mpg123).
> 
> Machine is a pentium III with a via apollo mvp3 chipset.
> 
> I don't know what else to add, don't hesitate to ask for any other details
> or for any tests you'd like.

The patch should fix the error above.


Takashi

--- a/include/sound/initval.h	Fri Jun 23 15:10:18 2006 +0200
+++ b/include/sound/initval.h	Fri Jun 23 15:13:57 2006 +0200
@@ -62,7 +62,8 @@ static int snd_legacy_find_free_irq(int 
 {
 	while (*irq_table != -1) {
 		if (!request_irq(*irq_table, snd_legacy_empty_irq_handler,
-				 SA_INTERRUPT, "ALSA Test IRQ", (void *) irq_table)) {
+				 SA_INTERRUPT | SA_PROBEIRQ, "ALSA Test IRQ",
+				 (void *) irq_table)) {
 			free_irq(*irq_table, (void *) irq_table);
 			return *irq_table;
 		}