Re: EMU10K1 and High Memory conflict in 2.4.13/2.4.14

[Rui Sousa]

On Tue, 6 Nov 2001, Mike Kasick wrote:

Edit linux/drivers/sound/emu10k1/main.c and change:

/* FIXME: is this right? */
/* does the card support 32 bit bus master?*/
#define EMU10K1_DMA_MASK                0xffffffff      /* DMA buffer mask for pci_alloc_consist */

to

/* FIXME: is this right? */
/* does the card support 32 bit bus master?*/
#define EMU10K1_DMA_MASK                0x7fffffff      /* DMA buffer mask for pci_alloc_consist */

I believe the comments say it all...

Rui Sousa

> I've been having problems with the EMU10K1 Sound Blaster Live! driver since the release of 2.4.13.  Though I get no errors, all the sounds play garbled and distorted, or not at all.  I didn't have this problem with 2.4.12 and below.  After not hearing anything on the issue I checked over my entire configuration tonight and found that with 4GB or 64GB High Memory Support enabled in my otherwise stock kernel I get these distortions, however with High Memory Support off, everything seems ok.
> 
> Among other things, my hardware includes:
> Abit KT7 Motherboard (KT-133 chipset)
> AMD Athlon Thunderbird 800 MHz processor
> 1.0 GB PC133 SD-RAM (I think its all Micron, but I'm not sure)
> Soundblaster Live! Value
> 
> This is my first time posting to the mailing list so forgive me for not being very familiar with the formalities, particularly I have no idea who to mail this to so I'm just posting it to the list in hopes someone reads it.  Also, my primary email address isn't subscribed, so I would appreciate it if all replies were CC'ed to [e-mail] -- Thanks.
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