Messages in this thread | | | Date | Tue, 23 Oct 2007 06:15:03 -0400 | From | Jeff Garzik <> | Subject | Re: [patch] PCI: disable MSI on more ATI NorthBridges |
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Daniel Barkalow wrote: > I have a device that supports MSI and INTX-disable, and, with MSI on (and > delivering interrupts successfully) also sends legacy interrupts (on > the IRQ that is no longer associated with the device) unless INTX is > disabled. Without the intx_disable(), the kernel disables the IRQ > entirely and breaks a random other device in my system.
That sort of behavior is an example of why I wrote pci_intx() in the first place, and employed it by default throughout the ATA drivers (before it migrated into PCI core).
Jeff
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