Re: acpi-20040715: functional regression on ASUS M2N

Nathan Bryant
2004-08-05T18:49:48Z

Hi all. Some thoughts on this:

The ELCR save/restore patch is causing regressions for some people. What
if the problem is that we're saving/restoring registers at the wrong time?

For example, on the Intel PIIX, the PIC is a child of PCI device
31:function 0. What if this PCI device is disabled at the time we decide
to save ELCR? If the I/O space is not mapped, we would probably read
0xff in this case, I think, and I think that would set everything to
level. What could be disabling it?

Georg, can you add some printk's to save_ELCR and log the values that we
are actually saving?

Nathan

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