Quoting Tom Sylla tsylla@gmail.com:
On 9/18/07, joe@smittys.pointclark.net joe@smittys.pointclark.net wrote:
If you check out the pci_bus_enable_resources() function in pci_device.c i put these tests right before it calls the pci_dev_enable_resources() function. The tests were to clear the serr and parity error bits from Primary Device Status Register 0x06 and Secondary Status Register 0x1E. As you can see above the bits are not clearing from the Primary Device Status Register 0x06 and they are from the Secondary Status Register 0x1E. Then what happens is in the pci_dev_enable_resources() function it goes enable the serr and parity checking on the Command Register 0x04 and that is where it chokes. I am assuming it is because the bits are not clearing from the Primary Device Status Register 0x06. But, why won't it let me clear these bits? Note: On these bits your supposed to write a "1" to them to clear them back to 0. HELP??
Those bits *mean* something. You seem to be having parity or system errors on that PCI segment. You need to figure out why. I assume that with the factory BIOS you do not get serr or perr secondary status reported?
So how do I go about finding out what is causing the parity error?? And why does the factory bios ignore this?
Thanks - Joe