On Wed, Nov 01, 2006 at 09:46:33PM -0700, Grant Grundler wrote:
> ISTR some chipsets return 0 or the most recent data on the bus
> when INB/INW master-abort. Maybe this an ISA bus behavior?
It's not a master-abort; it won't get as far as the device.
Documentation/pci-error-recovery.txt says reads return 0xffffffff.
> Or is config space access the only space which behaves this way
> for master abort on PCI?
> I'm looking at drivers/pci/probe.c:pci_scan_device().
As the comment says, the boards which do this are broken. It's highly
unlikely those boards will support error isolation and recovery ;-)
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