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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 <> 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.


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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