Re: No DMA for me?

From: Philip Dodd (pd_at_phildoddNOSPAMfreeserve.co.uk)
Date: 02/17/04 

Date: 17 Feb 2004 06:45:25 GMT

On Mon, 16 Feb 2004 11:52:44 -0600, Mike Rosing wrote:
>Kilian A. Foth wrote:

>I don't know, but I see a similar problem on a Serial ATA system.
>The error is "dma timeout: dma status = 0x24". The question is,
>where do we look to find the code that created that error message?

You did ask....

Running a grep during breakfast, the phrase "dma timeout" occurs in the
2.4.24 sources at the following places :

Addresses relative to /usr/src/linux

arch/cris/drivers/serial.c
drivers/sound/i810_audio.c
drivers/sound/cs46xx.c
drivers/sound/ali/5455.c ( occurs twice )
drivers/ide/ide-io.c

The dma_timer_expiry appears in :
/usr/src/linux/drivers/ide/ide-dma.c ( appears several times )
/usr/src/linux/drivers/ide/pci/sgiioc4.c
/usr/src/linux/System.map (should also be in /boot/System.map of course !)

If you don't have the kernel source code, for this sort of problem you need to
get it and build your own kernel. Just make sure that whatever you do, after
building a new kernel as described in /usr/src/linux/README that you run lilo
before rebooting......

Probably none of the above will help you though, if you don't normally compile
kernels or look at source code.

I'd agree with previous posters that the best way to find a quick solution is
to use your favourite search engine to look for an answer - make sure that
your search includes newsgroups, of course.....

Philip Dodd 

-- 
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