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SubjectRe: [2.5.54] Oops IDE-SCSI and failure AIC7xxx
On Sun, 05 Jan 2003 08:50:06 -0700, Justin T. Gibbs <gibbs@scsiguy.com> wrote:
>> Out of this, two problems :
>> - AIC7xxx fails to use DMA, with :
>> aic7xxx: PCI Device 0:8:0 failed memory mapped test. Using PIO.
>> scsi0: PCI error Interrupt at seqaddr = 0x3
>> scsi0: Signaled a Target Abort
>
> This is because your system is violating the PCI spec. There is
> now an explicit test for this during driver initialization so that
> the driver doesn't unexpectedly fail later. I can change the driver
> so that it doesn't print out the diagnostic if it would make you
> feel better. 8-)

The problem with the message is that it makes people think PIO vs DMA
(which matters a lot for e.g. IDE), not PIO vs MMIO which is what it
really is, and doesn't matter nearly as much.

Ion

--
It is better to keep your mouth shut and be thought a fool,
than to open it and remove all doubt.
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