Re: 2.6.33-rc2 pata_macio fails to detect PMac G3 CD-drive

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On Wed, 2010-01-13 at 14:15 +0100, Mikael Pettersson wrote:
> Seems to me the "irq 30: nobody cared" and "Disabling IRQ #30"
> are the real problems. Is the pata_macio irq handler registered
> too late, or does it ignore the interrupt?

It's getting an interrupt it doesn't expect around the reset. The
ata freeze code actually tries to prevent that with a read of
the status register but that doesn't appear to work. I think it's
a bug in the drive FW but I'm not sure of the details.

I'll try to make up a workaround involving masking the interrupt
until the first taskfile completes. I'll send you a patch to test
when I find time to write it.

Cheers
Ben.

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