Re: 2.6.14-rc4: dma_timer_expiry [was 2.6.13-rc2 hangs at boot]

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Tero Roponen <[email protected]> wrote:
>
> Hi,
> 
> I just tested 2.6.13-rc4. At boot it prints:
> "dma_timer_expiry: dma status == 0x61" many times.
> That's the same problem as in 2.6.13-rc2.
> 
> If I apply the following patch, everything seems to be fine.
> I'm not sure if this is the right thing to do, but it works for me.
> 
> -
> Tero Roponen
> 
> 
> --- 2.6.13-rc2/drivers/pci/setup-bus.c	Thu Jul  7 01:32:43 2005
> +++ linux/drivers/pci/setup-bus.c	Fri Jul  8 10:25:20 2005
> @@ -40,8 +40,8 @@
>   * FIXME: IO should be max 256 bytes.  However, since we may
>   * have a P2P bridge below a cardbus bridge, we need 4K.
>   */
> -#define CARDBUS_IO_SIZE		(4096)
> -#define CARDBUS_MEM_SIZE	(32*1024*1024)
> +#define CARDBUS_IO_SIZE		(256)
> +#define CARDBUS_MEM_SIZE	(32*1024*1024)
> 

hm, how did you come up with that fix?  Those numbers have been like that
since forever.

What's the latest 2.6 kernel which worked OK?

Would it be possible for you to generate the `dmesg -s 100000' output for
both good and bad kernels, see what the differences are?

Thanks.
-
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